... bearings and serial products in British measurement system .Features:1) Bearing type: B series, 949100 series2) Bore diameter range: 10mm to 60mm ... or individual box packing 10)Grease: high temperature grease 11)Bearing materials :GCr15Main Types: B874D, B8-85D, 608R-2RS, B8-23D ... , B17-116D, B17-107D, B17-126D, B17-126D. Automotive Alternator Bearing (B series,949100 series)