Product Description
Load Wheel
Frequently Asked Questions
Q: What load capacity does the SU S855 load wheel support?
A: The SU S855 is rated for 5000 lb static load capacity. Always verify your truck gross weight rating against the wheel spec sheet before ordering. This wheel handles standard warehouse and light industrial duty cycles.
Q: Is SU S855 compatible with Yale electric lift trucks?
A: Yes. SU S855 is a direct replacement for Yale ERP030 through ERP050 models. Cross-reference your truck nameplate serial number to confirm. If your truck uses the larger 8 inch hub assembly, you need SU S855-XL instead.
Q: What are the bolt pattern and axle diameter for SU S855?
A: SU S855 uses a 4 bolt 4.75 inch PCD pattern with a 1.25 inch diameter axle. Do not force-fit this wheel onto 1.5 inch axles. Verify axle diameter before purchase to avoid returns and downtime.
Q: How long does an SU S855 wheel typically last in normal service?
A: Under standard warehouse use, SU S855 wheels last 12 to 18 months before replacement. Inspect wheel condition at 6 month intervals. Replace wheels immediately if you observe flat spots, cracks in the hub, or excessive wobble during rotation.
Q: What symptoms indicate the SU S855 wheel needs replacement?
A: Replace the wheel if the truck pulls hard to one side, emits grinding noise when turning, or if steering feels rough and unresponsive. Flat spotting causes vibration. Check that the wheel spins freely on the axle without drag. If it does not, the bearing is likely failed and the wheel assembly must be removed and replaced.
Q: Can I retrofit SU S855 wheels onto a different brand lift truck?
A: Only if the axle diameter and bolt pattern match exactly. Cross-reference the truck OEM spec sheet or contact the manufacturer. Most Toyota, Crown, and Mitsubishi models use different hub geometries. Using an incompatible wheel voids warranty and creates safety risk.