Track Rollers,
Idlers & Sprockets
Bottom roller, carrier roller, idler or sprocket? Here's how to tell them apart.
Bottom roller, carrier roller, idler or sprocket? Here's how to tell them apart.
Four parts that work together — and wear together.
Also called the track roller. Carries the machine's weight along the lower frame — single or double flange.
Also called the top roller. Supports the upper, return run of track.
Guides the chain at the front and works with the track tensioner.
Drives the chain. Wears together with the chain and idler.
| Part | Also Called | What to Send |
|---|---|---|
| Bottom Roller | Track Roller | Model + mounting photo + single/double flange |
| Carrier Roller | Top Roller | Model + photo |
| Idler | Front Idler | Model + photo / measurements |
| Sprocket | Drive Sprocket | Model + tooth/rim photo |
A general reference, not a diagnosis.
