BB30-2K-K One way Bearing Shield Sprag Freewheel Clutch Bearings With One Key-way on the inner RingBB30 2K K One way clutch With One Key way on the inner Ring Shield Sprag Freewheel Bearing CSK30P 2RS One way clutch Shield Bearing, inner diameter is 30mm, outer diameter is 62mm and width is 21mm. Item: BB30 2K K Bearing Type: One Way Clutch Bearing Inner Diameter: 30mm Outer Diameter: 62mm Width: 21mm With One Key way on the inner Ring Torque: 110 N. m Quantity: One Bearing Dimension Torque Ncm d D W 30mm 62mm 21mm 4. 4