Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: Is SU S2350-A a direct replacement for SU S2344-A on the same truck?
A: No. SU S2350-A has a larger 16-inch diameter and different load rating. Installation without verifying axle compatibility will cause steering geometry changes and uneven load distribution. Both assemblies use the same axle stud size but you cannot mix them on the same truck. Replace all four wheels with SU S2350-A if upgrading, and retest load capacity after installation.
Q: What bearing preload should be set when installing SU S2350-A on a Toyota lift truck?
A: SU S2350-A comes pre-loaded from the factory and requires no field adjustment. The assembly is installed as-is without shimming. If you hear clicking or play in the wheel after installation, the bearing cage may be damaged. Do not adjust preload in the field. Remove the wheel and contact the supplier for bearing replacement.
Q: How do I diagnose if SU S2350-A bearings are failing before wheel locks up completely?
A: Early bearing failure symptoms: grinding or growling sound at low speed, wheel gets hot to touch (over 130 degrees F), slight vibration in steering column, or resistance when manually spinning the wheel. Test by lifting the truck and rotating each wheel by hand. A failing bearing feels rough or sticks intermittently. Replace the assembly immediately if any symptom appears.
Q: Can I use SU S2350-A in an extremely cold warehouse environment without special grease?
A: Standard SU S2350-A assembly uses lithium grease rated to minus 10 degrees F. In freezer environments below minus 10 degrees F, bearing drag increases and wheels become difficult to turn. Request cold-climate assembly with PAO synthetic grease if operating below minus 10 degrees. Retrofitting cold grease requires complete bearing repack by a certified technician.
Q: What is the weight difference between SU S2350-A and SU S2344-A and does it affect truck balance?
A: SU S2350-A weighs approximately 3 lbs more per wheel than SU S2344-A due to larger diameter and thicker rim. This 12 lb total difference across four wheels is within tolerance for standard lift truck load calculations and does not require rebalancing. However, if changing from SU S2344-A to SU S2350-A on an already-loaded truck, available load capacity decreases by approximately 50 lbs.
Q: How do I verify SU S2350-A torque specifications for the hub bolts?
A: SU S2350-A hub bolts are torqued to 52-58 foot-pounds on Toyota lift trucks and 48-54 foot-pounds on Crown/Yale trucks. Always check your truck manufacturer manual for the exact specification. Under-torquing causes the wheel to shift during operation. Over-torquing strips the stud threads. Use a calibrated torque wrench and recheck bolt tension after 8 hours of operation.