Were bought for the Bissel handheld vacuum cleaner. My mother's vacuum had a broken belt, so I put in a different one. The vacuum didn't pick things up properly so I looked again and the new belt was broken too. During disassembly, one of the roller bearings on the rotating brushes seized, causing the drive shaft to rotate but the belt not moving, causing it to overheat and break. I tried to find new camps locally but nothing came of it. Bearing size was on an old stock and luckily I found it at Revain. Both roller bearings on the brush roller have been replaced and the cleaner runs like new again. No tools were required other than a hammer and screwdriver. Saved $100 on vacuum cleaner repair.