Best prices Abundant stock ISO 9001 certificate Delivery on time Water pump bearings are primarily used in automotive water pumps, basically consisting of standard double row bearings. These bearings are available in two main types:1) Ball-ball: with two rows of balls; WIB, BWF, WS, WK, 885000 series, etc.2) Ball-roller: with one row of balls, one row of rollers; WIR, WN, WKH, 665000 series,etc. ...