Product Description
The GW 621-A Load Wheel Assembly by Liftsplus.com is specifically designed for electric lift truck load wheel positions. This assembly features a robust construction that ensures durability and performance in demanding applications.
Specifications: 3.250 inch diameter x 4.200 inch width (3.250" x 4.200" | 3.25 x 4.2 wheel | 3-1/4 x 4.2 | 82.55mm x 106.68mm) | Bearing ID: 25mm (0.984 inch bore | 25.000mm ID)
• 95A hardness Durarun polyurethane tread for excellent traction and wear resistance
• Precision-machined steel core for enhanced strength and stability
• Double sealed ball bearings for reduced friction and increased longevity
This load wheel assembly is cross-referenced to GW621-A, GP 621-A, GW621A, GP 621A, and 621A, ensuring broad compatibility across various electric pallet lift models.
Specifications
Material & Construction
| Wheel Material | Polyurethane over steel core |
| Bearing Material | Steel (ASTM A295-grade for ball bearing components) |
| Finish | Machined bearing surfaces, polyurethane molded tread |
Part Numbers
| Cross-Reference Part Numbers | Equivalent to GW621-A, GP 621-A, GW621A, GP 621A, 621A |
| OEM Part Number | GW 621-A |
| Manufacturer Part Number | GW621-A |
| Compatible Reference Number | GP621-A |
Wheel Dimensions
| Material | |
| Outside Diameter | 3.25 |
| Width Side to Side | 4.2 |
Frequently Asked Questions
Q: Are GW 621-A and GP 621-A the same part?
A: GW 621-A and GP 621-A are equivalent parts with identical specifications: 3.250 inch by 4.200 inch diameter, 25mm bearing bore, and 95A hardness polyurethane. They are cross-references from different suppliers or product lines. Either part will work in the same application. Always verify the bearing bore size (25mm) and hub attachment method on your truck before ordering.
Q: What bearing type does GW 621-A use and how do I verify compatibility?
A: GW 621-A uses steel ball bearings, grade ASTM A295, with a 25mm (0.984 inch) bore. Before installation, measure your truck hub bore to confirm 25mm size. Remove the old wheel and inspect the bearing seat. If the hub bore is 20mm, 22mm, or 30mm, GW 621-A will not fit and you need a different part number.
Q: Is GW 621-A installation a plug-and-play replacement?
A: GW 621-A is plug-and-play if you are replacing an identical OEM wheel. Remove the axle fastener, slide off the old wheel, and slide GW 621-A onto the hub. If the old wheel was a different SKU or size, verify hub bore, axle length, and bearing ID match before installation. Use a rubber mallet if the wheel is tight; do not force it.
Q: How do I extend the lifespan of a GW 621-A wheel?
A: Keep the bearing area clean and dry. Wipe debris and moisture away weekly. Every 3 months, rotate the truck position or swap wheel positions to distribute load evenly. Avoid striking curbs or obstacles at high speed. If the wheel does not roll freely after 2 years, the bearing likely needs replacement. Standard polyurethane wheels typically last 4 to 6 years under normal warehouse use.
Q: Can I use GW 621-A indoors and outdoors?
A: GW 621-A is rated for indoor warehouse, dock, and controlled outdoor environments. The non-marking red polyurethane tread is safe on finished floors. Extended outdoor use in rain or snow will increase bearing corrosion and wear. If your truck operates primarily outdoors, consider GW 621-A-DS with double sealed bearings for better protection.