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Idler Sprockets

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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.

Idler Sprocket Construction

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.

Idler Sprocket Type

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 of 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 of 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 withstand a lot of harsh and heavy-duty application requirements.

Needle Bearing Idler Sprockets


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.

Bronze Bearing Idler Sprockets


Using a piece of bronze as an idler sprocket configuration is probably the second most common idler sprocket configuration today. This is because of the versatility of bronze and the economic price tag. Additionally, it has no moving parts so in some applications a bronze bearing idler sprocket can last longer.

Bronze Bushed Idler Sprockets


Bronze bushed idler sprockets are essentially the same as bronze bearing idler sprockets.

Non-Metallic Idler Sprockets

40BB17NM Sprocket
Non-Metallic idler sprockets are manufactured using plastic and stainless-steel components so they can operate in extremely corrosive and food-grade environments. Most of these sprocket types are non-stock items but they can be made within a very short lead-time.

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We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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