Thrust ball bearing 1 Yield High-speed Performance 2 True Rolling Motion 3 Application Flexibility Thrust ball bearing1 Yield High-speed Performance2 True Rolling Motion 3 Application Flexibility4 Main model: 51100, 51200, 51300, 51400 series5 Material: carbod steel and chrome steel, such as GCr15, 100Cr66 Standard: ABEC-1, ABEC-3, ABEC-5,7 SO9001:20008 HS code: 84821000