bearing: 1 Less coefficient of friction 2 High limiting speed 3 Large size range 4 variations of structure bearing: 1 Ability to carry heavy ... loads2 Less coefficient of friction3 High limiting speed:4 ... 750mm 5 variations of structure: CC,CA,K,W33, N,NR, MB,NU,NJ6 Main productsA) Deep groove ball bearing :Metric 6001 ...