Product Description
The Raymond RA 632-421/CR7-SG is a durable polyurethane caster wheel assembly with integrated string guards, engineered for high-frequency warehouse material handling. Featuring a 95A Shore A durometer Durarun compound, sealed ball bearing, and springless design, this assembly delivers reliable performance in demanding electric pallet truck environments. Designed for Raymond 8300, 8400, and 8500 series trucks.
Specifications
Material & Construction
| Wheel Material | Polyurethane, 95A Shore A durometer (Durarun compound) |
| Wheel Diameter | 4 inches |
| Wheel Width | 2.5 inches |
| Bearing Type | Sealed ball bearing |
| Core Material | Engineered polymer |
| String Guards | Yes, integrated |
| Design Feature | Springless design |
Part Numbers & Compatibility
| Manufacturer Part Number | RA 632-421/CR7-SG |
| Alternate Part Numbers | RA 632-421-CR7-SG, RA 632-421-A-SG |
| Base Part Number (without guards) | RA 632-421, RA 632-421/CR7 |
| Equipment Compatibility | Raymond 8300 Series, 8400 Series, 8500 Series, 111 Series, 112 Series, 113 Series, 114 Series pallet trucks |
Frequently Asked Questions
Q: What Raymond electric pallet truck models does the RA 632-421/CR7-SG fit?
A: The RA 632-421/CR7-SG is compatible with Raymond 8300, 8400, 8500, and extended compatibility includes 111, 112, 113, and 114 series pallet trucks. Verify your specific equipment model serial range matches before ordering, as model variants may have different specifications.
Q: What are the key specifications of the RA 632-421/CR7-SG wheel assembly?
A: The RA 632-421/CR7-SG features a 95A Shore A durometer Durarun polyurethane tread with 4 inch diameter and 2.5 inch width. The assembly includes a sealed ball bearing, engineered polymer core, integrated string guards, and a springless design for long service life in high-frequency warehouse environments.
Q: What alternate part numbers are cross-referenced with the RA 632-421/CR7-SG?
A: The RA 632-421/CR7-SG is referenced by RA 632-421-CR7-SG and RA 632-421-A-SG. The base assembly without string guards is designated RA 632-421 or RA 632-421/CR7. When sourcing replacements, these part numbers are direct equipment-compatible equivalents.
Q: Why does the RA 632-421/CR7-SG feature string guards?
A: String guards prevent packing tape, strapping, and warehouse debris from wrapping around the wheel shaft and bearings. This protection reduces unexpected downtime from wrap-around failures, extends bearing life, and improves safety during daily warehouse material handling operations.
Q: How does the Durarun compound affect wheel performance?
A: Durarun polyurethane at 95A Shore A durometer provides enhanced floor contact and load distribution for material handling equipment. This compound balances durability for frequent use with adequate grip on standard warehouse concrete floors. It is not a high-traction variant for wet floors or cold storage.
Q: What maintenance recommendations extend the service life of the RA 632-421/CR7-SG?
A: Monitor wheel rotation regularly for bearing noise or resistance. Clean string guards and wheel perimeter to prevent debris buildup. Replace when the wheel develops flat spots, tread significantly wears, or bearing rotation becomes rough or noisy. Sealed bearing design minimizes routine maintenance but cannot be refurbished.