BB25-2K-K One way Bearing Shield Sprag Freewheel Clutch With One Key-way on the inner RingBB25 2K K One way clutch Shield Sprag Freewheel Bearing With One Key way on the inner Ring BB25 2K K One way clutch Shield Bearing, inner diameter is 25mm, outer diameter is 52mm and width is 20mm. Item: BB25 2K K Bearing Type: One Way Clutch Bearing Inner Diameter: 25mm Outer Diameter: 52mm Width: 20mm One Key way on the inner Ring Torque: 2 Ncm Quantity: One Bearing Dimension Torque Ncm d D W 25mm 52mm 20mm 2