... low -noise automotive alternator bearings,double angle contant automotive air-condition compressoe bearings,automotive tensioner and idler bearings,automotive clutch realese bearings ... )Grease: high temperature grease 11)Bearing materials :GCr15Main Types: B874D, B8-85D, 608R-2RS, B8-23D, B10-50D, B10-27D, ... B17-116D, B17-107D, B17-126D, B17-126D. Automotive Alternator Bearing (B series,949100 series)