Gcr15 Bearing Steel Balls is magnetic,HRC is 60-66.         

1.Material: AISI E52100        
2.Chymic component: C:0.95-1.10%;Si:0.15-0.35%;Mn≤0.50%;P≤0.025%;S≤0.025%;Cr:1.30-1.60%        
3.Grade: G3,G5,G10,G16,G20,G28,G40,G60,G100,G200        
4.Diameter 0.5000-25.4000mm        
5.Applied Area: Gcr15 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile,bags, electronical industry.The bearing steel ball can be used for grinding other medium. 

Stainless Steel Balls AISI440C is very hard to produce 440C stainless steel ball,and there are few factory can produce,so the factory who can produce 440C material go by the name of exceptive stainless steel.the heat treatment is complicated,it is easy to split,the precision must be high,it is the most rigid, HRC≧58.Its hardness is close to bearing steel ball,but it is more antirust and anticorrosive than the bearing steel ball.440C stainless steel ball is more antirust and anticorrosive than 440 stainless steel ball. The frictional resistance is enhancing while the hardness is increasing. 

1.Material: AISI440C        
2.Chymic Component: C:0.95-1.20%;Mn≤1.00%;P:≤0.040%;S≤0.030%;Si≤1.00%;Cr:16.00-18.00%;       Ni≤0.60%;Mo≤0.75%  
3.Grade: G3,G5,G10,G16,G20,G28,G40,G60,G100,G200        
4.Tensile strength: 285,000 psi        
5.Yield strength: 275,000 psi        
7.Modulus of Elasticity: 29,000,000 psi        
8.Density: 0.277lbs/cubic inch        
9.Applied Area: 440C stainless steel ball is used in the industry of high precision and antirust: avigation ,bearings, valve, petroleum and so on.

Stainless Steel Balls AISI420C is also called stainless iron,it is magnetic and has good antirust capability.The HRC is 50-55.     

1.Material: AISI420C        
2.Chymic Component: C:0.42-0.50%;Mn≤1.00%;P:≤0.040%;S≤0.030%;Si≤1.00%;Cr:12.5-14.5%;         Ni≤1.00%;Cu≤0.30%
3.Grade: G3,G5,G10,G16,G20,G28,G40,G60,G100,G200        
4.Tensile strength: 280,000 psi        
5.Yield strength: 270,000 psi        
6.Modulus of Elasticity: 29,000,000 psi        
7.Density: 0.275 lbs/cubic inch        
8.Applied Area: 420 stainless steel ball is used in the industry of high precision and antirust: motorcycle fittings, chain wheel,stainless steel bearings, plastic bearings, craftwork, valve, petroleum and so on.

201 stainless steel ball is nonmagnetic,in low price and good capability.It can be processed,jionted and drilled.The hardness is HRC≤28.(Notice:201 stainless steel balls can not be used in the industry of antirust and anticorrosive. eg. In seawater or acidic substance)         

Detailed Product Description         
1.Material: AISI210        
2.Chymic Component: C≤0.15%;Mn:5.5-7.5%;P:≤0.045%;S≤0.030%;Si≤1.00%;Cr:16.00-18.00%;     Ni:3.5-5.5%;Nitrogen≤0.25%     
3.Grade: G3,G5,G10,G16,G20,G28,G40,G60,G100,G200        
4.Diameter 0.5000-25.4000mm        
5.Tensile strength: 100,000 to 180,000 psi        
6.Yield strength: 50,000 to 150,000 psi        
7.Tensibility: 55 to 60%        
8.Modulus of Elasticity: 29,000,000 psi        
9.Density: 0.280 1bs/cubic inch        
10.Applied Area:  201 stainless steel ball is widely used in all kinds of hardware industry, craftwork, plastic(eg. lamps and lanterns,switch, motorcycle fittings,arks and bags,bearings and so on.

The purpose of a bearings. We have our o]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/Types-of-Bearings-425.html chinavariety@gmail.com There are many types of bearings, each used for different purposes. These include ball bearings, roller bearings, ball thrust bearings, roller thrust bearings and tapered roller thrust ]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/Ball-Bearings-424.html chinavariety@gmail.com Ball bearings consist of two hardened metal rings separated by a set number of perfectly spherical steel balls spaced equilaterally with a bearing cage. The balls run along concave grooves set into the rings placed one inside the other.

Bearing machine part is designed to reduce friction between moving parts or to support moving loads. There are various kinds of bearings ,such as  Ball Bearing, Deep Groove Ball Bearings are the most popular of all the ball bearing types because they are ava]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/New-Thin-Section-Contact-Series-Ball-Bearings-Feature-Four-Point-Contact-or-Conrad-Styles-421.html chinavariety@gmail.com Quality Bearings & Components (QBC) announces a new line of thin section four point contact series of Ball Bearings. This dynamic new series also comes in the innova]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/Bearings-released-Skateboard-full-ceramic-ball-bearings-420.html chinavariety@gmail.com Can a white zirconia ceramic Ball Bearings with silicon nitride ceramic balls beat the long history steel bearings?, the answer is simply YES, the ceramic material is li]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/Ball-Bearing-Idler-Pulley-Aftermarket-Manufacturing-419.html chinavariety@gmail.com Bearings may be classified broadly according to the motions they allow and principle of operation as well as by the directions of applied loads they can handle. Generally, they are Ball Bearing<]]> Mon, 08 Mar 2010 22:23:57 -0600 http://www.wtoobearing.com/news/Good-lubricant-plus-a-qualified-wheel-bearing-give-you-a-smooth-ride--418.html chinavariety@gmail.com Good lubricant plus a qualified wheel bearing give you a smooth ride.