This 6218Z NSK bearing is a Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 90x160x30.6218Z Metric, Light90mm - Bore SizeMetal Shield on One Side of BearingNormal Internal Clearance

This 6218ZC3 NSK bearing is a Shielded Deep Groove Radial Ball Bearing with a larger than standard radial internal clearance The bearing's dimensions are 90x160x30.6218ZC3Metric, Light90mm - Bore SizeMetal Shield on One Side of BearingInternal...

This BL218Z NSK bearing is a Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 90x160x30. BL218Z  Metric, Max Capacity, Light 90mm - Bore Size Metal Shield on One Side of Bearing Normal...