... sale service.Slewing bearings1. product specification:(1) precision: P6, P0(2) process ... 3) clearance: normal,(4) material: 42CrMo, 40CrMo,(5) series: HSB, HSW, HSN, HSQB, HSQW, HSQN, HJB, HJW, HJN series(6)structure: four-point contact ball bearing ... or crossed cylindrical roller bearing(7 ...