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 Product List

Auto Bearings


Front Wheel Hub Bearings
  Rear Wheel Hub Bearings
 

Tensioner&Idler Bearings

 

Clutch Release Bearings

 

Wheel Hub Bearing(One Generation)

 

Wheel Hub Bearing( second generation)

 

Wheel Hub Bearing ABS System

 

Water Pump Bearing

 

Automotive Tapered Roller Bearings

 

Steering Wheel Bearings

 

Universal Joint Kits

    Automobile Center Support Bearing
  Steering Gear Box Bearings
  Special Non Standard Auto Bearing
  Automobile Alternator Bearing
  Automotive Air Condition Bearings

Industry Bearing


Deep Groove Ball Bearings
  Angular Contact Ball Bearing
 

Cylindrical Roller Bearings

 

Self-Aligning Ball Bearing

 

Spherical Roller Bearings

 

Tapered Roller Bearings

 

Bearing Units

 

Thrust Bearings

 

Needle Roller Bearings

 

Linear Bearings

 

Special Non Standard bearings

Power Transmission Parts


Ball leading Screw

 

Linear Motion Shaft

  Linear Guide Rail and Block Assemblies
  Precise Crossing Guide Rail

Auto Steering Gears


Worm and level Steering Gears

 

Rack and Pinion Type Steering Gears

 

Recirculating Ball Type Steering Gears


Current Location: Home >> Basic Technical Parameter >> Materials
  Basic Technical Parameter

There are essentially two choices for the material used in a ball bearing - chrome steel or stainless steel. Since the material plays a major part in the performance of a bearing in any given application, it is very important that the correct material is used. Note that the specified material applies to the load bearing components only - the rings and the balls. The retainer and the shields (if used) are usually made from a different material and are subject to separate specification

CHROME STEEL (AISI 52100 OR EQUIVALENT)

This is the standard material used for ball bearing applications where load capacity is the main consideration. The machinability of this steel is excellent, giving smooth, low noise raceway finishes, together with superior life. Chrome steel material is recommended in applications where corrosion is not a factor.

CHEMICAL COMPOSITION (%):

C
CARBON

Si
SILICON

Mn
MANGANESE

P
PHOSPHOROUS

S
SULPHUR

Cr
CHROMIUM

Mo
MOLYBDENUM

.95 - 1.1

.15 - .35

Max .5

Max .025

Max .025

1.3 - 1.6

-


Hardness: 60 - 64 Rockwell 'C'
 
STAINLESS STEEL

400 series martensitic stainless steel is the standard material for miniature and instrument ball bearings where corrosion resistance is more important than load capacity. There are 3 types of 400 series stainless steel used in the bearings described in this handbook. These materials have evolved in response to different manufacturing and application needs. It is important to note that the actual material used is generally determined by the manufacturer, and cannot be specified by the user

DR Stainless steel

This material is used in the manufacture of most corrosion-resistant bearings. It has been specifically developed to give excellent lifetime and low noise characteristics, combined with superior corrosion-resistance.

CHEMICAL COMPOSITION (%):

C
CARBON

Si
SILICON

Mn
MANGANESE

P
PHOSPHOROUS

S
SULPHUR

Cr
CHROMIUM

Mo
MOLYBDENUM

.6 - .7

Max 1.0

Max 1.0

Max .03

Max .01

12 - 13.5

Max .25


Hardness: 58 - 60 Rockwell 'C'
 




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