Thrust rollers, sometimes also called thrust idlers, are positioned on the uphill and downhill edges of the rotary drum tire (riding ring), preventing the drum from drifting longitudinally on its axis.
FEECO offers high-quality replacement thrust rollers in a variety of materials, including:
- 1020 CD
- 1020 HR
- A572
- 1045 HR
- A36
- A283
- 4140
Sizes ranging from 7-¾” to 48” diameters are available.
INDICATIONS THAT A THRUST ROLLER MAY NEED REPLACEMENT
Thrust roller damage is apparent if the roller has become too small, or the shaft is broken. Similarly, rollers may also exhibit a flat spot, where the drum has been allowed to ride for an extended period of time.
Frequently Asked Questions (FAQs)
Thrust rollers only need to be replaced if they become damaged from high thrust loading (excessive contact with the tire/riding ring). Thrust rollers not in contact with the tire will typically last the life of the drum, since they do not experience wear.
The lead time for thrust rollers typically ranges from 2-10 weeks depending on what exactly is needed (for example, a roller only, vs the entire assembly), though circumstances may vary.
Yes. Because thrust rollers are part of the structural base, a full laser alignment may be required once the new thrust roller has been installed and the drum has been trained to achieve proper float. Thrust roller size is determined based on the drum’s rotational speed and loading (drum slope along with weight of drum and material being processed).
If the original unit was provided by FEECO, contact your dedicated parts person and include the following information:
- FEECO serial number
- Any changes in specs
If FEECO did not provide the original, contact us and include:
Any drawings available that show the thrust roller mounting location
- Size of the roller
- Size of the shaft
- Bearing type
- Drum loading information