... water pump bearing,automotive water pump bearing Water pump bearing,supply 150 kinds of water pump bearings. 1) Material: GCr15 grade ... used in automotive water pumps, basically consisting of standard double row bearings. These bearings are available in two main types: 1 ... , BWF, WS, WK, 885000 series, etc. 2) Ball-roller: With one row of balls, one row of rollers; WIR, WN, WKH, 665000 series, etc.