... ball bearing 1)High precision,long life,low noize 2)Many years supply experience 3) ... , shock absorbers for automobiles, water conservancy hydraulic engineering 5. D: 6mm~100mm 6. D: 14mm~160mm ... 85mm 8. Weight: 0.004kg~5.9kg1. Advantages High load rating Low noise Low temperature raise Long life Reduced ... : 2000 standard Precision level abec-1, abec-3, abec-5, abec-6 Vibration & noise level z1, z2, z3 ...