6311 KOYO Deep Groove Bearing - 55 x 120 x 29mm 6009c3QBL This 6307C3 NSK bearing is

This 6307C3 NSK bearing is a Open Type Deep Groove Radial Ball Bearing with a larger than standard radial internal clearance The bearing's dimensions are 35x80x21

60 09 2RSR C3 Extra Light Series 45mm - Bore Size Rubber Seals on Both Sides of Bearing Radial Internal Clearance Greater Than Normal

63 10 DDU C3 Medium Series 50mm - Bore Size Rubber Seals on Both Sides of Bearing Radial Internal Clearance Greater Than Normal

This 6312 2RSR FAG bearing is a Sealed Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 60x130x31

A combination of low cylinder head temperature (compared with air cooled engines)

6311 KOYO Deep Groove Bearing - 55 x 120 x 29mm 6009c3QBL This 6307C3 NSK bearing isThis 6311 KOYO bearing is a Open Type Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 55x120x29. 63 11 Medium Series 55mm Bore Size Open Type Normal Radial Internal Clearance