China OEM Factory for Bicycle Front Wheel Bearings - 7312B-2RS Single Row Angular Contact Ball Bearing – CWL manufacturers and suppliers

OEM Factory for Bicycle Front Wheel Bearings - 7312B-2RS Single Row Angular Contact Ball Bearing – CWL

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OEM Factory for Bicycle Front Wheel Bearings - 7312B-2RS Single Row Angular Contact Ball Bearing – CWL Detail:

7312B-2RS Single Row Angular Contact Ball Bearing detail Specifications:

Metric series

Material : 52100 Chrome Steel

Construction : Single Row

Seal Type : 2RS , Sealed on both sides

Seal material : NRB

Lubricant : Great Wall Motor Bearing Grease2#,3#

Temperature Range : -20°to 120°C

Limiting Speed : 3650 rpm

Cage : Nylon cage or Steel cage

Cage Material : Polyamide (PA66) or Steel

Contact Angle : 40°

Weight : 1.71 kg

Main Dimensions:

Bore diameter (d) : 60 mm

Outer diameter (D) : 130 mm

Width (B) : 31 mm

Distance side face to pressure point (a) : 55 mm

Chamfer Dimension ( r) min. : 2.1 mm

Chamfer Dimension ( r1) min. : 1.1 mm

Dynamic load ratings (Cr) : 91.20 KN

Static load ratings (Cor) : 65.55 KN

ABUTMENT DIMENSIONS

Minimum diameter shaft shoulder (da) min. : 72 mm

Maximum diameter of housing shoulder (Da) max. : 118 mm

Maximum diameter of housing shoulder (Db) max. : 123 mm

Maximum fillet radius of shaft (ra) max. : 2.1 mm

Maximum fillet radius of housing (ra1) max. : 1.0 mm

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