Finished bore sprockets provide increased avoidance of shaft slippage more than minimum ordinary bore sprockets. Completed bores enable the roller chain sprocket to move larger loads with an increase of accuracy.

Toronto Gear Works produces ready-to-ship completed bore sprockets that are manufactured with precision and so are fast and simple to install. Our catalogue includes a variety of completed bore sprockets that can match many precise efficiency requirements.

Toronto Gear Works stocks steel completed bore roller chain sprockets for #25 (0.250” pitch) roller chain. We share these metal sprockets in tooth counts ranging from 9 to 72. Our completed bore sprockets with a 0.500” bore or smaller are given two set screws. All of our completed bore sprockets with a 0.625” bore or agricultural Chain greater have a typical keyway and two arranged screws. The keyway is usually devoted to the tooth and the set screws can be found over the main element at 90 degrees.

Steel finished bore #25 roller chain sprocket part numbers could be determined the following:

25BF + Tooth Count + “x” + bore size.

An example will be 25BF72x1-3/8. This is for a #25 roller chain. It includes a “B” design sprocket which implies that it has a hub. It includes a finished bore of 1 1.375” and it provides 72 teeth.