BB-31 Ball Bearing 17/32" Outside Diameter 5/16" (8mm) Inside Diameter

1 7/32" Outside Dia, Ball Bearing, 5/16" Inside Dia, 8.6mm Thickness

Ball Bearings are one of the most important components in a router bit’s structure since they have a direct impact on design and performance. Dimar’s Deep Groove Ball Bearings have shields installed on both sides and are factory-packed with lubricants. It eliminates the need for relubrication and therefore, reduces maintenance costs. Dimar’s selected quality ball bearings have been designed to operate at rotating speeds well above the speeds of the router machines in the market.