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Company Info
Zhongshan Hrt Steel Ball Co. , Ltd Zhongshan Hrt Steel Ball Co. , Ltd

Street Address: Haocheng Road

City: Zhongshan

Province: Guangdong

Country/Region: China

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7700881 Chrome Steel Ball BMWe-catalog[e-Catalog]

7700881 Chrome Steel Ball BMW

Application:  BMW

OEM No/Model:  7700881

Market Type:  After Market

Packing:  20kg/Box,4cartons/Box

Samples:  Free

Maximum Prodcution Capacity:  250000000PCS/Month

Delivery Time:  5-7days

Place of origin:  Guangdong

Export Ratio:  41% - 50%

Unit Price:  USD 0.1

Price Terms:  EXW

Delivery Port:  ZHONGSHAN

Other Price Terms:  TT

Payment Terms:  T/T

Minimum Order:  20000Piece/Pieces

Product Attribute:


Material Quality:ISO900



Production Description:

General Information

This is an oil-hardened steel, which is universally used by the ball and roller bearing industry. The steel has high hardness and good resistance to deformation with excellent wear resistance. Usually vacuum degassed and uniformly through hardened in atmosphere controlled electric furnaces.


International Equivalents

AISI 52100, EN31, JIS G4805 SUJ2, Wks 1.3505


Size Range

0.5mm to 50.8mm


Grade Available




HRC 60-66



excellent surface quality, superior wear resistance, high hardness and high load bearing capacity



Precision bearings, automotive components (brakes, steering, line shaft), bicycle, agitators, appliances, drawer rails, quick couplings, machine tool, lock mechanisms, conveyor belts, skates, pens, pumps, castors, measurement instruments, valves, recirculating balls. Foodstaff and chemical applications.


Material Composition

C 0.95-1.10%

Cr 1.30-1.60%

Mn 0.25% Max

Si 0.15-0.30%

P 0.03% Max

S 0.025% Max


Mechanical Properties

Tensile Strength- 325,000psi

Yield Strength- 295,000psi

Density- 7.83g/cc


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