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China Dual Screw Shaft DC Micro Motor rs555 w shaft sleeve for Electric Fan Motor shaft and screw

Warranty: 3months-1year
Model Number: LD-RS555S
Usage: BOAT, Car, Electric Bicycle, FAN, Home Appliance, Cosmetic instrument, PTO SHAFT FOR AGRICULTURAL SMART HOME, robot
Type: Micro Motor
Construction: Permanent Magnet
Commutation: Brush
Protect Feature: Totally Enclosed
Speed(RPM): 4000-25000RPM
Efficiency: IE 1
Product Name: 555 DC Micro Motor
Motor type: DC brush Micro Motor
Color: Silver
Material: Metal aluminum
Shaft type: Dual Shaft with sleeve
Rated Speed: 4000-25000rpm
Rated Current: 0.2-4A
Rated Power: 5-60W
Rated torque: 8-20N.m
Certification: CCC, ce
Packaging Details: Blister tray, foam or customized.
Port: HangZhou/ZheJiang

Dual Shaft DC Micro Motor rs555 w/ shaft sleeve for Electric Fan Motor Products Description Product image: Drawing and Specification: Voltage, Torque, Speed can be customized. Please send us inquiry with your specification. Company Profile Our factory was established in 2000, Agriculture tractor spare parts CZPT rotavator blade manufacturer specialized in making dc motor; dc gear motor; treadmill motor and linear actuator etc,. Our factory covers an area of 3,000 square meters. Our motors are widely used in medical equipment, AD equipment, 1 way bearing csk 50 One Way Clutch Bearing Backstop Bearings printing machine and household appliance. Our products are popular all over the world which mainly sold in North America and Europe markets. Also, we can develop and study according to your requirements. Delivery and Payment FAQ Why Choose Us 1: Any email or Trade Messager inquires will be replied within 12 hours.2: Regular samples can be offered very soon.3: Competitive price, Professional Technical Support and After-sale Service.4: OEM/ODM is welcome.5: Sourcing motor parts, let our customers enjoy one-stop service and so on. Thanks for your browsing.Should you have any questions, do not hesitate to send us an inquiry, we are here to answer you.

screwshaft

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
screwshaft

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these two styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
screwshaft

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during one rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with one or two independent closed paths. Multi-circuit ball nuts have two or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.

China Dual Screw Shaft DC Micro Motor rs555 w shaft sleeve for Electric Fan Motor shaft and screw
editor by czh 2023-06-27

China 12V 6Rpm DC Worm Reduction Geared Micro Motor Ultra Low Speed Electric Motor for DIY 370 with lead screw shaft screw shaft sizes

Warranty: Other
Model Number: 46GF-RK 370
Usage: Home Appliance, Medical Equipment
Type: Micro Motor
Torque: 0.38kgf.cm
Construction: Permanent Magnet
Commutation: Brush
Protect Feature: Totally Enclosed
Speed(RPM): 120rpm
Continuous Current(A): 60mA
Efficiency: IE 1
Gears: Metal Spur
Motor type: Dc Brush Gear Motor
Feature: High Torque Low Rpm
Weight: 400g
Packaging Details: plastic or foam packing
Port: HangZhou

DOOR LOCK GEAR MOTOR
Main voltage: 6VDC 12VDC 24VDC
Voltage range: 3v-24v
Maximum power: 12W
Output shaft: conventional short shaft, long shaft, screw rod M6, double output shaft and other customized.
Deceleration ratio: 52,65,80,112,158,180,200,255,337, abec 9 bearing size Deep groove ball bearing 608 2RS 8227MM skateboard bearings 564,1019 (the maximum speed ratio can be 1019:1, 2rpm / min)
No load speed: 2 RPM ~ 115rpm

Typical application:
Automatic fingerprint lock motor, password lock deceleration motor, window opener, door opener, micro winch,
face recognition lock motor, medical equipment, household appliances, mechanical equipment, lifting equipment,
kitchen equipment, Lawn mower air filter 11013-7571 agricultural machinery parts with low price factory supply robot, intelligent toy, etc.

Motor characteristic example:

MODEL	VOLTAGE	NO LOAD		ON LOAD				STALL
	Rated	SPEED	CURRENT	SPEED	CURRENT	OUTPUT	TORQUE	TORQUE	CURRENT
	V	r/min	mA	r/min	mA	W	Kgf.cm	Kgf.cm	mA
46GF69-370	12	120	60	101	300	3	0.38	2.5	1.7
46GF100-370	12	65	60	45	300	3	0.75	3.0	1.7
46GF180-370	12	45	60	36	300	3	1.13	6.0	1.7
46GF330-370	24	24	40	18	300	12	4.10	12.5	0.9
46GF950-370	24	9	40	7	220	12	11.5	42.0	0.9
46GF69-370	12	120	60	101	300	3	0.38	2.5	1.7
46GF100-370	12	65	60	45	300	3	0.75	3.0	1.7

Appearance Size/mm

Production Process
Company Information
About us

More than 50 sets automatic manufacturing equipment and detecting instruments.

R&D engineer group with practised experience, and long-term customization

Professional technical experience and reliable after-sale service

Good cost control and high cost performance

ISO9001 quality management system certification

Up to 50,000 motors daily output

Our Services Customization service as below are available

Packaging & Shipping
FAQ
Q: Are you trading company or manufacturer ?A: We are factory.
Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?A: The sample fee is according to the stock and cost.
Q: What is your terms of payment ?A: Payment=1000USD, 30% T/T in advance ,balance before shippment.

Screw Shaft Types

If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find one to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
screwshaft

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the two ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These two features ensure that the ball and the nut meet at two points. You’ll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress two pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as one with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is eight mm in diameter but has a thread pitch of one mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to one mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

China 12V 6Rpm DC Worm Reduction Geared Micro Motor Ultra Low Speed Electric Motor for DIY 370 with lead screw shaft screw shaft sizes
editor by czh 2023-03-03

China Good quality 12mm Geared Motor 12mm Electric Motor with Reduction Gear Screw Shaft Threaded Shaft DC Gear wholesaler

Product Description

Intelligent lock motor is based on micro precision reducer development, small intelligent micro precision reducer, used in the safe, locks, smart locks, sensor intelligent lock; This kind of motor with low noise, low consumption, small volume, light quality, precision, big torque, durability and other characteristics; HangZhou trillion wei mechanical and electrical company development, design micro precision smart lock motor, can factory project according to the customer demand custom motor parameters, performance, etc.
Customization, intelligent lock motor used in induction smart locks, trick lock, the bluetooth lock, Shared electronic bicycle lock areas; Application scenario is suitable for the hotel door lock, safe in the bank, family locks, office locks.

N30 Gear reducer Motor 3-12V with Gearbox for Door-Lock Product Description:
Parameters in a certain range can be customized according to customer’s demand.
Intelligent lock motor Voltage range: 3~12 V (eg:1.5V 3V 4.5V 6V 12V)

N30 Intelligent lock motor Speed range: 32~2500 RPM

3.7v Intelligent lock motor Overall dimensions: 12.0 x 10.0 x 25.0mm

We have a lot of different reduction ratio,Tie-in and different reduction ratio of the reducer, deceleration electric chance to output different rotational speed,In addition to change the speed reduction ratio can change the gear motor, you can change the speed of the motor.

Reduction ratio table :(The “L” is Gear length ,the unit is “mm”)

The following is 1 of the parameters:

Parameters of the model	VOL TAGE	NO LOAD		AT MAXIMUM					STARTING
	NOMINAL(V)	SPEED	CURRENT	SPEEP	CURRENT	TOROUE		OUTPUT	TOROUE		CURRENT
	NOMINAL(V)	r/min	A	r/min	A	mN.m	g.cm	W	mN.m	kg.cm	A
N30AGB10-08230	6.0	1000	0.571	880	0.350	1.96	20	0.18	9.8	0.1	0.35
N30AGB298-08230	3.0	16	0.571	12	0.060	25.48	260	0.03	98	1.0	0.18
N30AGB100-08230	12	200	0.040	170	0.150	39.2	400	0.7	196	2.0	0.70
N30AGB380-08220	3.0	13	0.571	11	0.045	24.5	250	0.03	117.6	1.2	0.20
N30AGB50-5718	6.0	260	0.045	210	0.150	14.7	150	0.32	78.4	0.8	0.60
N30AGB100-11120	6.0	195	0.055	160	0.220	34.3	350	0.57	176.4	1.8	1.2
N30AGB100-08210	12	250	0.040	210	0.130	29.4	300	0.65	156.8	1.6	0.75
N30AGB380-10155	5.0	38	0.035	32	0.120	58.8	600	0.20	313.6	3.2	0.68
N30AGB210-10145	6.0	80	0.050	52	0.165	49	500	0.27	245	2.5	0.85
N30AGB10- 0571 0	12	1550	0.030	1350	0.065	1.96	20	0.3	9.8	0.1	0.30
N30AGB30-11130	6.0	650	0.080	540	0.230	9.8	100	0.55	44.1	0.45	1.1
N30AGB298-10145	5.0	47	0.040	40	0.130	49	500	0.2	548.8	2.6	0.68

Our engineering department can provide special designs for different shaft length .

Packaging & Delivery:

Packaging Detail: standard export carton with inner foam in case of being damaged.

Delivery Detail: 20 days after receiving the order and advanced payment of 30%.

Company production workshop:

We will test each motor, to ensure that customers receive qualified motor. Mechanization of production to realize full-automatic, further improve the production efficiency and stable product quality.

We have 20 years of experience in design research and development,Products in strict accordance with the standard production in Japan, “the quality first, customer supreme” is our management policy.
As long as you put forward demand, we can recommend suitable motor products for you, welcome to consult!

Screw Shaft Types and Uses

Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
screwshaft

Major diameter of a screw shaft

A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its 2 outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between 1 thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in 1 turn. While lead and pitch are 2 separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are 3 different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from 1 manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
screwshaft

Material of a screw shaft

A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than 1 made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each 1 will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between 2 and 16 millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are 2 basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
screwshaft

Function of a screw shaft

When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.

China Good quality 12mm Geared Motor 12mm Electric Motor with Reduction Gear Screw Shaft Threaded Shaft DC Gear wholesaler

China factory DC 12V 300rpm Geared Motor High Torque with Threaded Shaft near me supplier

Product Description

DC 12V 300RPM Geared Motor High Torque with Threaded Shaft

Model:D88R-24V300W-180RPM

Type	dc worm gear motor
Motor Diameter	88mm
Voltage	12v 24v 36v 42v 48v
Power	≤500W
Torque	≤35N.M
Speed	≤220RPM
Gear of ratio	82:1 34:1
Gear Modulus	82:1 M=1 34:1 M=1.25
Material of gear	Plastic /brass
OEM/ODM Service	Accept
Usage	Hydraulic pump ,electric forklift ,sweeper,scrubber , vacuum cleaner,welding machine,garage door opener,other electric tools .

HangZhou CZPT Science & Technology Co.,Ltd is a subsidiary of HangZhou CZPT Motor Co.,Ltd.The factory is located in Xihu (West Lake) Dis.,HangZhou,we can design and manufacture of motors according to all our customers’ demands so far,we can manufacture about 60,000 motors per month.

Our main market:

Europe,America and Asia,including United Kingdom,Germany,Italy,France,Sweden, United State,Brazil,India,Korea and so on.

Company Advantages:

1. Big production capacity, fast delivery.

2. Strict QC inspecting rules: all products must be 100% inspected before delivery.

3. OEM/ODM services are available

4. 24 hours online service.

5. Prompt quotation for your inquiry

6. Quality,reliability and long product life.

7. Professional manufacturer offers competitive price.

8. Diversified rich experienced skilled workers.

More Applications:

Car simulator ,garage door opener ,gate operator, packing barrier,wheelchair ,electric vehicle ,water pump ,oil pump,sewing machine,blender machine, welding machine,floor polisher,truck lift,stair lift,hospital bed ,hydraulic pump electric forklift.

RFQ:

Q: Are you trading company or manufacturer ?

A: We are Integration of industry and trade, with over 20 years experience in DC worm gear motor. Our company have accumulated skilled production line, complete management and powerful research support, which could match all of the customers’ requirements and make them satisfaction.

Q: What is your main product?

–DC Motor: Gear motor, Square motor, Stepped motor, and Micro motor
-Welding equipment: Wire feeder, Welding rod, Welding Torch, Earth clamp, Electrode holder, and Rectifier

Q: What if I don’t know which DC motor I need?

A: Don’t worry, Send as much information as you can, our team will help you find the right 1 you are looking for.

Q: What is your terms of payment ?

A: Payment=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:

Q: How to delivery:

A: By sea – Buyer appoint forwarder, or our sales team find suitable forwarder for buyers.

By air – Buyer offer collect express account, or our sales team find suitable express for buyers. (Mostly for sample)
Others – Actually,samples send by DHL,UPS, TNT and Fedex etc. We arrange to delivery goods to some place from China appointed by buyers.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Screw Shaft Types

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
screwshaft

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

China factory DC 12V 300rpm Geared Motor High Torque with Threaded Shaft near me supplier

China Standard Electric Piston 300mm Threaded Hall Sensor DC Electric12V Motor Linear Actuator for Forest Pesticide Mechanical Spray Rod with Great quality

Product Description

Electric Piston 300MM Threaded Hall Sensor Dc Electric12v Motor Linear Actuator For Forest Pesticide Mechanical Spray Rod

AM11 linear actuators Heavy Duty Linear Actuator provides cost-effective high force capabilities. The stainless steel shaft accompanied by metal gears allows it to push and pull up to 2000 lbs, and hold up to 4000 lbs. The environmental protection rating provides a versatile unit CZPT to withstand dust, water, and harsh environments. The heavy-duty actuator is the only unit in our line of products with adjustable limit switches. This feature allows the user full control over where to start and stop the actuator.

HIGH FORCE – 12VDC model offers power and durability for applications that require dynamic linear motion and versatility. One of our strongest units and CZPT to withstand harsh environments. The stainless-steel shaft accompanied by metal gears allows it to push and pull up to 2000 lbs, and hold up to 4000 lbs.
FEATURES – The environmental protection rating provides a versatile unit CZPT to withstand dust, water, and harsh environments. The heavy duty actuator is the only unit in our line of products with adjustable limit switches, which allows customers fully control over where to start and stop the actuator. Built-in Adjustable (up to 24″ stroke length)
INDUSTRIES – Can be used in a variety of different applications, from lifting a marine hatch on a boat to being utilized in industrial machinery equipment found in the construction industry. Might be used in modern forage harvesters, combines and feeding machines.

Data list:

Model	AM11	Input voltage	12/24/36/48 VDC Option
SCREW	Acme	Stroke	Customized Stroke Available
Installation distance	A=S+250mm	Noise level	<=70dB
Working temperature	-26ºC~+65ºC	Color	Black
Protection class	IP65	Duty cycle	20%
Limit switch	Built-in	Feedback signal options	Potentiometer

Dynamic Load Force(N)	10000	7000	5000	3000	2000	1000	500
No load speed (Mm/s)	5	5	10	20	30	40	50
Full load speed (Mm/s)	4	4	8	16	24	32	40
Voltage(VDC)	12V/24V/36/48 DC

Detailed Photos

If you are interest in Linear actuators,please contact us freely.

Packaging & Shipping

FAQ

1.Q:Are you manufacturer or trading company?
A:We have our own factories to produce products by ourself .

2.Q:What you can supply to me?
A:We provide a wide range of products.Linear actuator, DC motor, controller…
and we provide comprehensive control system for different application. ,we provide OEM service, shipping service and QC service as well to make sure you get ONE-STOP purchase process from us.

3.Q:Can you customize the products as per our request?
A: Yes, we do OEM and ODM. We could make the product suggestion based on your idea and budget.

4.Q: What’s your payment term?
A: We usually doing 30% deposit and 70% balance against copy of B/L by T/T, We also accept L/C ,D/P,PayPal.

Screw Shaft Types

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
screwshaft

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

China Standard Electric Piston 300mm Threaded Hall Sensor DC Electric12V Motor Linear Actuator for Forest Pesticide Mechanical Spray Rod with Great quality