30204 Taper Roller Wheel Bearing One Bearing 30204 Taper Roller Wheel Bearing, it ables to carry radial and axial load in one direction simultaneously (cone + cup), this is a popular size that could be used in many application that uses this size 20mmx 47mmx 15.25mm. Bearing is made of Chrome Steel. Item: 30204 ball bearing Type: Taper Roller Wheel Bearing Size: 20mmx 47mmx 15.25mm Quantity: One Bearing (cone+cup) Basic load ratings Cr: 27 KN Basic load ratings Cor: 27.2 KN Limiting Speed: Grease Lubrication: 8,700 RPM Oil Lubrication: 12,000 RPM