Excavator Carrier Rollers
Carrier rollers support the upper strand of the track chain and keep it aligned between the idler and sprocket.
Typical materials for carrier rollers
| Material | 50Mn / 40Mn2 |
|---|---|
| Surface hardness | HRC 50–56, depth 4–8 mm |
| Process | Forged or cast, induction hardened |
Common industry values for this part type. The actual steel grade and hardness depend on the part number and are confirmed with each quote.
When to replace carrier rollers
- Roller seized or turning unevenly
- Oil leaking at the seal
- Worn tread or flange where the chain runs
- A bent shaft or loose mounting bracket
What to confirm before ordering
- OEM number on the old roller or in the parts book
- Shaft diameter and length, because the shaft locates in the frame bracket
- Quantity per side
- Machine model and serial number
Komatsu Carrier Rollers
Caterpillar (CAT) Carrier Rollers
Hitachi Carrier Rollers
Doosan / Develon Carrier Rollers
Hyundai Carrier Rollers
Volvo Carrier Rollers
Case Carrier Rollers
Kubota Carrier Rollers
Can't find your model?
Our partner factories make carrier rollers for hundreds of machine models not listed here. Send the OEM number or machine model.