Features: _x000D_ 100% brand new and high-quality. _x000D_ It can withstand the pressure of high speed operation. _x000D_ The deep-groove rollaway nest is more steady while operating. _x000D_ The material is bearing steel which is especially for bearings. _x000D_ The double-shielded ball bearings provides a better running environment for bearing balls. _x000D_ _x000D_ Specification:_x000D_ _x000D_ Material:Bearing Steel _x000D_ Holder Material:Steel Plate_x000D_ Scroll Column:1_x000D_ Rollaway Type:Deep-groove_x000D_ Rolling Element:Ball_x000D_ Angel:15_x000D_ Seal Cover:Double Shielded_x000D_ _x000D_ Product Usage:General _x000D_ Model (Optional) Size Weight _x000D_ 6800-ZZ 10*19*5mm/0.39*0.75*0.2 in 50g/1.76oz _x000D_ 6806-ZZ 30*42*7mm/1.18*1.65*0.28in 250g/8.82oz _x000D_ 6807-ZZ 35*47*7mm/1.38*1.85*0.28in 280g/9.88oz _x000D_ 6808-ZZ 40*52*7mm/1.57*2.05*0.28in 320g/11.29oz _x000D_ 6809-ZZ 45*58*7mm/1.77*2.28*0.28in 410g/14.46oz _x000D_ _x000D_ Package List: _x000D_ 10*Deep Groove Ball Bearing _x000D_ _x000D_ _x000D_ Note:_x000D_ As different computers display colors differently, the color of the actual item may vary slightly from the above images.