... 695zz plastic injection pullysMaterialchrome steel (GCr15), carbon steel (GCr11)Steel Type open, Z, ZZ, RS, 2RS, RZ, 2RZAccuracy LevelZ1, ... low noise 6.Require little maintenanceSpecification TypeDimension (mm)Basic Load Rating (N)Limiting Speed (rpm)Weight (Kg)dDBr (min) ... Series - Light Series Ball Bearings – Balanced between space and load capacity 6300 Series - Medium Series Ball Bearings – Ideal ...