Roller chain sprockets are a toothed wheel that works in conjunction with roller chain to power machines. Sprockets come in many different configurations, tooth counts & bore sizes that suite different purposes on a drive system. We stock an extensive range of finished bore sprockets, plates sprockets, idler sprockets & weld on sprockets. Most Nitro™ sprockets are manufactured from 1045CD (cold drawn) carbon steel with hardened teeth for wear resistance. Every sprocket type in manufactured to ANSI B29.1 standards. MTO sprockets are available by quotation for OEM's, aftermarket suppliers and resellers. You can view our easy-to-use sprocket diameter chart here.
These finished bore sprockets are the most commonly used sprockets in the power transmission industry. These sprockets are made with a hub on one side and are furnished with a keyway & 2 setscrews. The keyway & setscrews are what attaches the sprocket the the shaft to transmit the power. In the power transmission industry these are commonly referred to as either "Type B Sprockets" or "Type BS Sprockets".
The plate sprockets are a flat (hubless) sprocket that's known as a type A sprocket. These are great for machining in bolt holes, slots or for welding directly onto a shaft.
Idler sprockets are free-wheeling and used to take up slack on drives that use long lengths of roller chain. Idlers are often called "type BB sprockets" in the chain and sprocket industry.
Weld on sprockets & hubs are a universal option that allows you to essentially "build-a-sprocket". You select a sprocket by chain size & tooth count, then select a hub with the bore configuration needed and weld them together. All weld on sprockets & hubs we offer are the X series, so these are all compatible.
Our X series sprockets hubs are available in finished, splined, hex or square bores. These hubs work with any X series sprocket or pulley.