2 x Wheelchair Wheel Bearings For Rear Wheel Hub Compatible with many models of wheel chairs Please check the following measurements before ordering Inside Diameter: 12.70mm = 1/2 inch Outside Diameter: 28.58mm = 1-1/8 inch Width: 7.94mm = 5/16 inch Double Rubber Sealed Pre Lubricated - Synthetic Lube Free U.K. P&P
