Posted by on 8/31/2018 to
What is a roller chain idler sprocket?
Idlers sprockets is a flat sprocket that has a sealed ball bearing. Specialty idler sprockets may use bronze bushing or special stlye bearings. Most bearings in idler sprockets have a wide inner ring to allow clearance on each side of the bearing to prevent damage to the bearing seals.
Why would I need to use an idler sprocket?