Product Description
Technical specifications for the SU 629-XL polyurethane load wheel
Specifications: 3.250 inch diameter x 5.937 inch width (3.250" x 5.937" | 3.25 x 5.94 wheel | 3-1/4 x 5.937 | 82.55mm x 150.80mm)
Specifications
Material
| Material Specification | High-duty cycle polyurethane |
| Construction | Proprietary XL3™ bonding agent for no bond separation |
Part Numbers
| Cross-Reference Part Numbers | Superior SU629-XL, SU629XL, 629XL |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.873 |
| Bore Depth | 0.591 |
| Hub Width | 5.873 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What are the exact dimensions of the SU 629-XL load wheel?
A: The SU 629-XL measures 3.250 inch diameter by 5.937 inch width (often specified as 3.25 x 5.94 or 3-1/4 x 5.937). Metric equivalent is 82.55mm diameter by 150.80mm width. The bore ID is 1.938 inch with a side-to-side width of 5.873 inch. This extra-wide profile is used on narrow-aisle lift trucks or high-speed applications requiring stability.
Q: What are the equivalent part numbers for the SU 629-XL?
A: The SU 629-XL is also sold as SU629-XL, SU629XL, and 629XL. These designations all reference the same wheel. When ordering, use the full SKU SU 629-XL to avoid confusion with non-XL variants. Cross-reference your current wheel part number to confirm the XL high-durometer version is the correct replacement for your truck.
Q: What truck models use a 3.25 x 5.937 load wheel?
A: The 3.25 x 5.937 extra-wide wheel configuration is typically used on narrow-aisle electric reach trucks, order pickers, and high-speed stand-up riders from manufacturers including Crown, Toyota, Raymond, and Jungheinrich. The extreme width (5.937 inch) provides lateral stability during tight turning and load transfer. Verify your truck model supports this width before ordering.
Q: What is the material and durometer rating of the SU 629-XL?
A: The SU 629-XL uses Cushothane XL polyurethane with proprietary XL3 bonding agent technology. This construction eliminates bond separation failures and provides consistent performance during high-cycle operations. The XL designation indicates premium durometer rating and extended service life compared to standard polyurethane load wheels.
Q: How do I install the SU 629-XL on my truck?
A: The SU 629-XL slides onto the truck axle and is retained by a nut or clip. Remove the axle fastener, slide off the old wheel, and slide the new SU 629-XL onto the axle. Reinstall the fastener hand-tight. Spin the wheel to ensure smooth rotation with no binding or play. If the wheel does not spin freely, check bore centering and axle alignment.
Q: What is the maintenance schedule for the SU 629-XL?
A: Inspect the SU 629-XL every 250 to 500 operating hours or quarterly, whichever comes first. Monitor the bore for wear, check for flat spots on the tread, and verify bore clearance remains tight. Replace when diameter loss exceeds 0.10 inch or bore wear causes wobbling. Always replace both front wheels as a pair to maintain even load distribution and steering response.