RM 620-1-B

Frequently Asked Questions

Q: What is the RM 620-1-B caster wheel assembly and what equipment does it fit?
A: The RM 620-1-B is a caster wheel assembly designed as a direct replacement for manual pallet jack casters from Crown, Toyota, Raymond, Yale, Hyster, and similar manufacturers. It features a polyurethane tread on a steel core with sealed ball bearings and a machined steel hub for durability in warehouse material handling environments.

Q: What are the material specifications of the RM 620-1-B?
A: The wheel tread is polyurethane bonded to a steel core, providing moderate grip on dry concrete and sealed warehouse floors. The hub is machined steel with sealed ball bearing cartridges inside. This material combination resists abrasion and provides smooth rolling while supporting standard pallet jack loads.

Q: How does the RM 620-1-B perform on wet or cold storage floors?
A: The standard polyurethane tread provides adequate grip on dry and light moisture surfaces. For slip-prone wet floors or freezer applications, verify tread hardness and coefficient of friction with the manufacturer. Contact us to confirm suitability for your specific environment.

Q: What is the typical lifespan of the RM 620-1-B caster wheel assembly?
A: Under normal warehouse use, the RM 620-1-B typically provides 2 to 4 years of service before requiring replacement. Lifespan depends on load weight, floor type, and use frequency. Replace if tread wears, sealed bearings fail causing grinding or rolling resistance, or the wheel develops flat spots or cracks.

Q: What symptoms indicate the RM 620-1-B caster needs replacement?
A: Signs of caster wheel failure include excessive tread wear, visible flat spots or cracks in the polyurethane, grinding or squealing noises indicating bearing damage, stiff rolling resistance, and lateral wobble at the wheel hub. If the jack becomes difficult to push or the wheel no longer rotates freely, replacement is necessary.

Q: How do I know if the RM 620-1-B is compatible with my pallet jack?
A: The RM 620-1-B is engineered for standard fork tip compatibility on manual pallet jacks from major manufacturers. Verify the wheel mounting hole diameter and fork pocket width before ordering to confirm proper fit with your equipment.