Product Description
Polyurethane load wheel assembly, 4 inch diameter by 2 inch width, Shore 92A hardness, designed for electric lift truck load positions. Manufacturer part RL WHL-5028-MSTUM. Compatible with standard electric lift truck applications. Non-marking poly tread for warehouse use.
Specifications
Material
| Wheel Material | Polyurethane |
| Core Material | High-strength polymer |
| Finish | Smooth non-marking |
Part Numbers
| Manufacturer Part Number | RL WHL-5028-MSTUM |
Performance
| Durometer Rating | 92A Shore A |
| Interchangeability | Direct replacement for RL WHL-5028-MSTUM assembly |
Frequently Asked Questions
Q: What are the dimensions of the RL WHL-5028-MSTUM wheel?
A: The RL WHL-5028-MSTUM is 4 inches in outer diameter by 2 inches in width. These dimensions are designed for electric lift truck load positions. Measure your wheel mounting space and bearing bore before ordering to ensure proper fit.
Q: What does the 92A Shore durometer rating mean?
A: Shore 92A indicates the hardness of the polyurethane compound on a durometer scale. 92A is a medium-hard compound suitable for indoor warehouse use, providing a balance between load capacity and floor contact grip. Lower durometer values are softer for better traction; higher values are harder for greater wear resistance.
Q: Which electric lift truck models use this wheel assembly?
A: The RL WHL-5028-MSTUM is a standard electric lift truck load wheel compatible with common electric material handling equipment across major manufacturers including Toyota, Crown, Raymond, and similar models that use 4 inch by 2 inch load wheels. Verify your equipment mounting dimensions and bearing specifications match before ordering.
Q: What tread compound does this wheel use and why?
A: The RL WHL-5028-MSTUM features a smooth non-marking polyurethane tread. Non-marking means it will not leave black streaks or scuff marks on warehouse floors, meeting cleanliness requirements in food, pharmaceutical, and retail environments. The 92A durometer provides adequate wear resistance for regular indoor warehouse use.
Q: How is this electric truck wheel different from manual pallet jack wheels?
A: Electric lift truck wheels are typically wider (2 inches vs. 1 to 1.5 inches on pallet jacks) and carry higher sustained loads. The 4 inch diameter and 92A Shore hardness are optimized for powered equipment. Manual pallet jack wheels use different diameter and width specifications. The two types are not interchangeable.