... & quality 2.ISO 9001 certified 3.Low noise,Stable in chemical 4.Single & double row Double row ball bearingMaterial: chrome steel STEEL NO. ... 65≤0.10≤0.025≤0.25≤0.25≤0.3 GCr15 bearing steel compare to same standard code: ChinaISOAISIDINJISSKFGCr15693/ ... P0), ABEC-3 (P6), ABE C-5(P5)4) Noise Level: Z2V1, Z3V2 , Z4V35) Application: Caster bearings, Home Appliance bearings, Electric Motor bearings, 6 ...