... Deep groove ball bearing 1, Good quality, reasonable price 2, Large stock, prompt delivery 3,Low noise, long life NSK 6407-ZZ Deep groove ball bearingDeep groove ball ... : Shield / closure: open ball bearing, Z, ZZ, RS, 2RS,2RZBall bearings snap ring: N, NRTolerance codes: ABEC-1 ... With a snap ring groove in outer ring NWith a snap ring groove in outer ring and external snap ring NRIn different radial ...