Yamaha WR500F Motorbike Rear Wheel Bearing Kit Year 1992 for model 4AA1 999 A

1 x bearings manufactured by Koyo who are one of the largest premium bearing manufacturers in the world. The Yamaha part number for the bearings is 93306-00444-00 and the bearing dimensions are 20mm inside diameter x 42mm outside diameter x 12mm wide. They come with rubber bearing seals integrated into the bearings to help keep the grease in the bearings and dirt and contaminents out.

2 x bearings also manufactured by Koyo. The Yamaha part number for these bearings is 93306-00438-00 and the bearing dimensions are 20mm inside diameter x 42mm outside diameter x 12mm width.

2 x Oil Seals manufactured from NBR material and with a secondary wiper lip which acts as an additional barrier to prevent dirt and contaminants from reaching the bearing. The Yamaha part number for the oil seals is 93106-28023-00 and the dimensions of the seals are 28mm inside diameter x 47mm outside diameter x 7mm wide.