Tag Archives: shaft collar 1/4

China Hex Grade5 M5 M6 Titanium Bolts Screws For Bicycle 1/4 shaft collar with set screw

CNC Machining or Not: Cnc Machining
Type: Broaching, DRILLING, Etching / Chemical Machining, Laser Machining, Milling, Other Machining Services, Turning, Wire EDM, Rapid Prototyping
Material Capabilities: Aluminum, Brass, Bronze, Copper, Hardened Metals, Precious Metals, Stainless steel, Steel Alloys
Micro Machining or Not: Micro Machining
Material: Customers’ Requirement
Surface treatment: Customer’s Request
Service: OEM ODM Customized
Color: Customized Color
Packaging Details: plastic bag,box,wooden case
Port: ZheJiang

Specification

Customized ServiceOEM / ODM ( inluding logo, product instruction, outer package )
Drawing Formatjpg, pdf, dwg, STEP, IGS,etc.
Machinable Tolerance+/- 0.005mm
Optional Materialstainless steel, steel, aluminum, brass, copper, etc.
Heat Treatmentcustomer remark or recommendation from our engineers(rockwell hardness)
Surface Treatmentpowder coating, painting, black oxide, polishing, zinc/ nickel/chrome plating, sand blasting, anodic oxidation, electrophoresis,brushing, passivation, plastic coating, rubber coating, etc.
Colorpantone color cards need to be provided or use regular color of our factory
Packagewooden case, tractor parts tube tractor pto drive shaft for agricultural machine carton, plastic film, plastic bag, pearl cotton, bubble wrap, foam
Quality ControlCMM, tool microscope, projector, multi-joint arm, automatic height gauge, roughness measurement, hardness tester, marble platform,ping page, dial gauge, digital micrometer, holtest, inner hole caliper, go-no go fixed gauge, thread plug gage, thread ring gage,feeler gauge, etc.
Lead Time 7-25 days ( depending on the specific project )
Trade TermsEXW, FOB, CFR, CIF
Transportationby express / sea / air, etc.
Payment TermsT/T, credit card, PayPal, Western Union, L/C, etc.
Specification and model a variety of specifications and models to choose, what model you need can contact customer service PROCESING EQUIPMENT Company Profile Xihu (West Lake) Dis.guan Aochang Precision Metal Co., Ltd.Our company has been in the precision machining, tooling and stamping industry more than 10 years.We specialized in precision machining, stamping, die making for aerospace devices, automobiles, telecommunication devices, Electronics, home appliances and medical devices. We can make products with materials of stainless steel, steel alloy, Ball Screw Linear Xihu (West Lake) Dis. Rail for CNC or 3D Printer copper, aluminum,zinc,bronze alloy,nylon,etc. The surface treatments we can handle include anodize, black oxide, powder coating, high polishing and plating.We haveprofessional production equipment and also have the most professional technical production team,in the face of fierce marketcompetition, we focus on technological innovation and technological information, guided by market trends, continue to introducenew technologies, develop new products, and have strict requirements on product quality. After that, we will pay more attention toafter-sales service. We can produce according to customer requirements. Good product quality and excellent service are ourtenets.We look CZPT to establishing business contacts with friends from different countries! Machining Production LinesWe owns more than 50 sets CNC machining equipments, including 3/4/5 axis CNC machining centers, turning lathes, CNC milling machines, grinding machines, drilling machines and some other equipments. Also, we have 6 sets Japanse brand “Brother” CNC turn-milling equipments. EXHIBITION Packing & Delivery Pakage according to product size and customer requirement, If you need special packaging, please contact customer service for customization. Shipping method.It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).Please confirm with us before placing orders. FAQ 1. How soon can I get your quotation?–We usually quote within 24 hours. If you are very urgent, pls call us or tell us in your email so that we will regard your inquiry priority.2.Will my drawing be safe after you get it?–Yes, we can CZPT the NDA before you send the drawing.3. Do you provide samples?–Yes, Just need sample cost, The sample cost could be refunded in mass production4.What is your lead time? -It depends on the order quantity and the season you place the order. -Usually we can ship within 7-15 days for small quantity, and about 30 days for large quantity.5.What is your payment term? -T/T,Western Union,MoneyGram,and Paypal.This is negotiable.6.How do you make our business long-term and good relationship? – We keep good quality and competitive price to ensure our customers benefit ; – We respect every customer as our friend and we sincerely do business and make friends with them, Cylindrical Roller Bearing N NU 2305 high quality roller bearing no matter where they come from.

screwshaft

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.

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 two 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 one 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 one turn. While lead and pitch are two 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 three 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 one 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 one 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 one 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 two and sixteen millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are two 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 Hex Grade5 M5 M6 Titanium Bolts Screws For Bicycle     1/4 shaft collar with set screwChina Hex Grade5 M5 M6 Titanium Bolts Screws For Bicycle     1/4 shaft collar with set screw
editor by czh 2023-07-03

China Sourcing Factory OEM High Precision Quality Screw Pump Shaft 1/4 shaft collar with set screw

Product Description

1.Product Descrition: Sourcing  factory OEM high precision quality screw pump shaft
Material (Blank blanking) – (Medium frequency hardening) frequency CZPT – hole (Pier hole) – pier (Rough CNC) – rough semi refined car (Half finished CNC) – rolling, rolling lines (Knurling, Rolled thread) – (Milling flutes) – milling heat treatment (Heat treatment) – (coarse and fine grinding each one) Mill (Coarse and fine) – cleaning, packaging and warehousing (Cleaning and packing)

2.Product Details;
 

Core competence drive shaft,pump shaft, motor shaft,rotor shaft ,blender shaft and multi -diameter shaft etc precision shaft core.
Surface Treament Anodizing/ Oxiding/ Zinc plating/ Nickel plating/ Chrome plating/ Silver plating/ Gold plating/ Imitation gold plating/ Sand blasted/ Brushed/ Silk screen/ Passivation/ Power coating/ Painting/ Alodine/ Heat treatment/ Teflon etc.
Tolerance +/-0.005mm or +/- 0.0002″
Material Stainless Steel,Carbon Steel
We handle many other type of materials. Please contact us if your required material is not listed above.
Inspecation Equipment Coordinate measuring machining/ Projector/ Caliper/ Microscope/ Micrometer/ High gauge/ Roughness tester/ Gauge block/ Thread gauge etc.
Quality Control 100% inspection
Customized Yes,all are customized according clients’ drawings design or sample
Payment Way  T/T, Western Union ,Paypal
Packaging  1:Anti-rust oil OPP bags and cartons for outer packages.  
2: Customer’s requirement.
Shipping (1)0-100kg: express & air freight priority  
(2)>100kg: sea freight priority  
(3)As per customized specifications.

3.Products processing:

FAQ:

1.Can we  get a sample before ordering?
   Sure,sample is free,you have to pay freight cost or supply us your company collect couire account number.tks

2.All products all are OEM ?
 Yes,our specialized in producing and exporting various shafts and pin,all are high quality and customized according to clients’ drawings or samples.

3.Are you factory or a trading company  ?
We are manuacturer,and our factory is in HangZhou,china.
welcome to visit us anytime.

4.Why choose us?
Because we can help you produce high quanlity and  Precision shaft according to your design drawing.
welcome to OEM  products anytime.
Sure,competive price and good delivery time service

 

OEM Factory CNC machining precision steel linear shaft for motor

US $0.99-7.99
/ Piece
|
3,000 Pieces

(Min. Order)

###

Material: Stainless Steel
Load: Drive Shaft
Stiffness & Flexibility: Stiffness / Rigid Axle
Journal Diameter Dimensional Accuracy: OEM
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

###

Samples:
US$ 9.99/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Core competence drive shaft,pump shaft, motor shaft,rotor shaft ,blender shaft and multi -diameter shaft etc precision shaft core.
Surface Treament Anodizing/ Oxiding/ Zinc plating/ Nickel plating/ Chrome plating/ Silver plating/ Gold plating/ Imitation gold plating/ Sand blasted/ Brushed/ Silk screen/ Passivation/ Power coating/ Painting/ Alodine/ Heat treatment/ Teflon etc.
Tolerance +/-0.005mm or +/- 0.0002"
Material Stainless Steel,Carbon Steel
We handle many other type of materials. Please contact us if your required material is not listed above.
Inspecation Equipment Coordinate measuring machining/ Projector/ Caliper/ Microscope/ Micrometer/ High gauge/ Roughness tester/ Gauge block/ Thread gauge etc.
Quality Control 100% inspection
Customized Yes,all are customized according clients’ drawings design or sample
Payment Way  T/T, Western Union ,Paypal
Packaging  1:Anti-rust oil OPP bags and cartons for outer packages.  
2: Customer’s requirement.
Shipping (1)0-100kg: express & air freight priority  
(2)>100kg: sea freight priority  
(3)As per customized specifications.
US $0.99-7.99
/ Piece
|
3,000 Pieces

(Min. Order)

###

Material: Stainless Steel
Load: Drive Shaft
Stiffness & Flexibility: Stiffness / Rigid Axle
Journal Diameter Dimensional Accuracy: OEM
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

###

Samples:
US$ 9.99/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Core competence drive shaft,pump shaft, motor shaft,rotor shaft ,blender shaft and multi -diameter shaft etc precision shaft core.
Surface Treament Anodizing/ Oxiding/ Zinc plating/ Nickel plating/ Chrome plating/ Silver plating/ Gold plating/ Imitation gold plating/ Sand blasted/ Brushed/ Silk screen/ Passivation/ Power coating/ Painting/ Alodine/ Heat treatment/ Teflon etc.
Tolerance +/-0.005mm or +/- 0.0002"
Material Stainless Steel,Carbon Steel
We handle many other type of materials. Please contact us if your required material is not listed above.
Inspecation Equipment Coordinate measuring machining/ Projector/ Caliper/ Microscope/ Micrometer/ High gauge/ Roughness tester/ Gauge block/ Thread gauge etc.
Quality Control 100% inspection
Customized Yes,all are customized according clients’ drawings design or sample
Payment Way  T/T, Western Union ,Paypal
Packaging  1:Anti-rust oil OPP bags and cartons for outer packages.  
2: Customer’s requirement.
Shipping (1)0-100kg: express & air freight priority  
(2)>100kg: sea freight priority  
(3)As per customized specifications.

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the two extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of one sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
screwshaft

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around eighty percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of one wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the two terms and discuss how they relate to one another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
screwshaft

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to sixteen inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of two inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
screwshaft

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by two features: its major diameter, or distance from the outer edge of the thread on one side to the inner smooth surface of the shaft. These are generally two to sixteen millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of two opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the two main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

China Sourcing Factory OEM High Precision Quality Screw Pump Shaft     1/4 shaft collar with set screwChina Sourcing Factory OEM High Precision Quality Screw Pump Shaft     1/4 shaft collar with set screw
editor by czh 2022-11-28