... , 52200, 52300, 52400, 53200, 53300, 53400, 54200, 54300, 54400 series standard types and 511/500 512/500 510/500 593/500 ... 511/670 510/670 572/710 592/710 series non-standard series.2. Material: GCr153. Application: Oil drilling machines, screw shaft ... 3.2351138190×240×374.0551138M 51140200×250×374.2051140M auto parts factory distributor trust ball bearing