Product Description
3 3/8 X 3.97 Load Wheel
Frequently Asked Questions
Q: What is the difference between the SU 524 and SU 524-A?
A: Both the SU 524 and SU 524-A measure 3 3/8 inches diameter by 3.97 inches width. The primary difference is typically hub material or bearing configuration between versions. The SU 524-A is the updated or alternative specification. Always verify cross-compatibility with your truck manual before substituting one part number for the other, as axle bore dimensions and hub widths may differ even though wheel size appears identical.
Q: Can I substitute SU 524-A wheels if my truck originally had SU 524 wheels?
A: Substitution is possible only if both the original SU 524 and replacement SU 524-A have identical bore inside diameter, bore outside diameter, bore depth, and hub width specifications. Since exact specs are not detailed here, measure your existing SU 524 wheel carefully, then verify that the SU 524-A matches these dimensions before installation. If bore dimensions do not match exactly, the wheel will not fit your axle or will be dangerously loose.
Q: What bearing type does the SU 524-A have?
A: The bearing configuration for the SU 524-A is not specified in available documentation. Before ordering, contact your wheel supplier or lift truck manufacturer with your truck model and serial number. Confirm whether the SU 524-A uses greaseable, sealed, or hybrid bearings so you can plan maintenance schedules and have replacement bearings on hand if needed.
Q: Is the SU 524-A compatible with narrow-aisle pallet jacks?
A: The SU 524-A can be used on narrow-aisle pallet jacks provided that the original equipment uses 3 3/8 x 3.97 wheels and the bore dimensions of your jack axle match the SU 524-A specifications. Measure your current wheel bore before ordering. Many narrow-aisle jacks are proprietary designs, so verify the part number in your jack manual or contact the manufacturer to confirm SU 524-A compatibility.