Heat bearings to temporarily expand their inner race so they can be installed on a shaft without forcing or hammering them, which may damage the shaft or cause the bearing to be misaligned. The bearing contracts as it cools for a snug fit. Bearing heaters can also be used to warm bearings inside shaft-mounted components like pulleys, sprockets, bushings, couplings, sleeves, or gears.
These crossbar heaters can accommodate bearings with a variety of outside diameters and widths, but the inside diameter of the bearings must closely match the diameter of the crossbar.
Use these blocks to raise the crossbar of your crossbar heaters to accommodate bearings with larger outside diameters.