China Custom CZPT High Precision Ceramic Balls Silicon Nitride Ball Si3n4 Ball 3mm for Ball Bearing and Ball Screw with Best Sales

Product Description

ZYS high precision ceramic balls silicon nitride ball Si3N4 ball 3mm for ball bearing and ball screw


Si3N4 is a new kind of bearing material with several good features, it possesses high temperature resistance, corrosion resistance, insulation, non-magnetism, high strength, low density and other features. In the application of bearing, it possesses low friction, low temperature rise, high rigidity, low centrifugal force and other features. It can implement high speed, high precision, high temperature, high rigidity, corrosion resistance and other good features.
The high precision and high performance silicon nitride bearing ball is manufactured by  spray-drying process, near-net-shape, cold isotatic pressing, GPS-HIP combined sintering, compounded CZPT lapping process effectively. The precision grade of it is G5, the materials class is I.

ZYS Si3N4 ceramic ball material grades

                       Class
Item
Materials class
I II III
Property Bending strengthσ3.40(Mpa) 900 800 600
Crushing load ratio(%) 35 35 30
Hardness(HV10) 1580 1480 1380
Fracture toughness(Mpa.m1/2) 6.0 5.0 5.0
The limit does of fiber structure Pore size(μm) 10 10 25
Porosity(%) 0.02 0.06 0.06
Crystal phase(μm) 10 10 25
The second ceramic phase(μm) 25 25 25
The maximum of inclusion of transverse section every
Square centimeter
Range 200(μm) 0 0 1
Range 100~200(μm) 0 1 2
Range 50~100(μm) 1 2 4
Range 20~50(μm) 4 8 16

Examples of Si3N4 ceramic ball’s common applications

  G3 G5 G10 G16 G20 G28 G40
Class I High speed power equipment
Space mechanism
Aircraft instrument
Liquid oxygen pump
Active shaft bearing
The key parts of aerospace equipment  
Class II Molecular turbo-pump
High precision star bearing
Vacuum equipment, high speed instrument, mechanical devices, high performance and the most advanced contacting spherical propeller Motor, medium-low precision star bearing Testing bearing ball, separating bearing ball
Class III     Sport, entertainment, food processing Mechanical devices

ZYS Si3N4 ceramic ball specifications

The nominal diameter of bearing ball The nominal diameter of bearing ball The nominal diameter of bearing ball
mm in mm in mm in
  1/32 5   8.731 11/32
0.8   5.5   9.525 3/8
1   5.556 7/32 11.112 7/16
1.588 1/16 5.953 15/64 12.303 31/64
2   6   12.7 1/2
2.381 3/32 6.35 1/4 13.494 17/32
2.5   6.5   14.288 9/16
3   6.747 17/64 15.081 19/32
3.969 5/32 7   15.875 5/8
4   7.144 9/32 19.05 3/4
4.5   7.5   25.4 1
4.762 3/16 7.938 5/16 31.75 1 1/4

Note:  The special specification can be manufactured after negotiating

ZYS Ceramic ball workshop:

 ZYS Glory   

Top 200 most promising companies of China in Forbes

Top 500 in China Machinery Industry

Excellent Enterprise with China Well-know Trademark

High-performance Bearings Laboratory

State Quality Supervision and Testing Center for Bearing

ISO/TC4 China Secretariat

The Research Center for High-speed Precision Bearing Engineering in Machinery Industry
 

ZYS Quality assurance 

ZYS bearing products

……

      We would like to and ready to do business with any company from all over the world. If you are interested in any of CZPT products, please don’t hesitate to contact with us, we would like to give you CZPT best quality service any day any time !

 

  Contact us  

Address: No.1 HangZhou Road, HangZhou City, ZheJiang , Province, China.

Zip Code:471039
 
 

Website:chinazys chinazys           

Screw Shaft Types

A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
screwshaft

Size

A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
screwshaft

Material

The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each 1 has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best 1 depends on the application.
The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.

Function

The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
Screws can be classified into 2 types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
screwshaft

Applications

The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.

China Custom CZPT High Precision Ceramic Balls Silicon Nitride Ball Si3n4 Ball 3mm for Ball Bearing and Ball Screw   with Best SalesChina Custom CZPT High Precision Ceramic Balls Silicon Nitride Ball Si3n4 Ball 3mm for Ball Bearing and Ball Screw   with Best Sales

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