Idler sprockets

On a typical roller chain drive application there is a drive sprocket and idler sprockets. Idler sprockets are designed in conveyor applications to essentially “carry” or guide a roller chain in a straight line, around a bend, or in a complete 360-degree directional change. If an idler sprocket fails while in use the result can be catastrophic depending on the application. Because of this it is always important to monitor the status of your idler sprockets and use a high-quality sprocket. At Ever-power and Sprockets we stock a wide range of premium Idler sprockets for almost all roller chain sizes. Below are the standard configurations for idler sprockets but additional types are available upon request. 
Teeth – The teeth on our idler sprockets come standardly hardened from 30-teeth and under to ensure elongated durability.
Sprocket Body – Our materials used in our idler sprocket bodies are premium 1018 & 1045 carbon steel, 304 or 316 stainless steel, and UHMW or Nylon plastics. 
Idling Component – This component is typically a ball bearing, needle bearing, bronze, or non-metallic plastic.
When using an idler sprocket you want the least amount of friction with your setup, it is imperative that the utilization of high quality components such as bearings, plastics, or bronze is used to eliminate as much friction as possible. Thus making your setup more effective and energy efficient. An example to our dedication to maintaining high-quality idler sprockets on our ball bearing configuration (the most common type) we utilize sophisticated designed deep-groove ball bearings that meet or exceed ABEC 3 tolerances, use grade 10-balls, and has motor bearing rated Polyrex EM grease to ensure you get an idler sprocket with the best possible performance. Regardless as to which configuration you use, we make and provide the best performing idler sprocket on the market.
Ball Bearing Idler Sprockets

The most standard configuration is using a precision ball bearing that is pressed and secured into the sprocket plate. These are economical and can width stand a lot harsh and heavy-duty application requirements. 

Needle bearing idler sprockets are able to withstand higher capacities because there is more surface contact between the rotating parts. Surprisingly this design also uses less friction and is more stable when mounted onto the shaft.