Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What is included in the SU S2344-A load wheel assembly kit?
A: SU S2344-A is a complete pre-assembled load wheel kit that includes the SU S2344 tire and wheel, bearing cup, bearing balls, axle spacer, and retaining clips. The wheel is factory-balanced to within 4 oz-inches. Installation requires only hub removal and wheel installation. No additional parts or tools for bearing setup are needed.
Q: How long does it take to install SU S2344-A versus replacing only the tire?
A: SU S2344-A full assembly installation takes 15-20 minutes per wheel including axle removal and reinstallation. Tire-only replacement takes 5-10 minutes. If only the tire is damaged and the wheel rim is straight with no wobble, tire replacement is faster and less expensive than full assembly replacement.
Q: Is SU S2344-A assembly sealed or does it require periodic bearing lubrication?
A: SU S2344-A uses sealed roller bearings packed with lithium grease at factory. No field re-lubrication is required for the life of the assembly. Do not attempt to disassemble or repack bearings in the field. If you notice grinding noise or wheel drag after 18 months, the assembly has reached end-of-life and must be replaced.
Q: Can I retrofit SU S2344-A onto a Caterpillar NR40 truck that originally had solid bushings instead of ball bearings?
A: No. SU S2344-A requires ball bearing axle hubs. Cat NR40 with bushing-type hubs cannot accept this assembly without complete hub replacement. You must upgrade to ball bearing hubs first, which requires axle modification and may require steering geometry verification. Consult a Cat-certified technician before attempting this retrofit.
Q: What is the warranty period for SU S2344-A assembly and what does it cover?
A: SU S2344-A carries a 12-month or 2000-hour limited warranty covering manufacturing defects in wheel rim, bearings, and tire blowouts from road hazards. The warranty does not cover wear from normal operation, overload damage, or collision damage. Damage from exceeding load capacity voids all warranty coverage.
Q: Is the 4 oz-inch balance tolerance of SU S2344-A acceptable for a high-speed (10+ mph) electric lift truck?
A: Yes. 4 oz-inch is within tolerance for industrial lift trucks operating under 12 mph. If your truck regularly exceeds 12 mph or shows steering vibration at top speed, request dynamic balancing to 2 oz-inch or less. This adds 30-40 minutes labor but eliminates shimmy in the steering column during high-speed travel.