Product Description
Poly Drive Tire, Smooth Crown
Specifications: 13.000 inch diameter x 4.500 inch width (13.000" x 4.500" | 13 x 4.5 wheel | 330.20mm x 114.30mm)
Specifications
Wheel Specifications
| Outside Diameter (in) | 13.000 |
| Width (in) | 4.500 |
| Outside Diameter (mm) | 330.20 |
| Width (mm) | 114.30 |
| Material | Cushothane EZ 85A |
Frequently Asked Questions
Q: What Crown, Yale, or Raymond models use the SU 13 X 4.5 X 8-SC-EZ wheel?
A: This 13 x 4.5 Superior Smooth Crown wheel fits Crown PWC50, PWC55, Toyota 8FGCU15, 8FGCU18, Yale ERC045, and similar 4500 to 5500 lb capacity electric jacks with 8-inch hubs. Verify the hub bolt pattern matches before purchase. Consult your lift truck nameplate or parts manual if you are unsure of exact model compatibility.
Q: Is Cushothane EZ 85A softer than XL 97A and what does that mean for performance?
A: Yes, EZ 85A is a softer, lower-durometer polyurethane than XL 97A. Softer material grips better and reduces noise on concrete. However, EZ wears faster and is more prone to flat spotting in high-cycle environments. Use EZ 85A for moderate-duty applications and load wheels where grip and floor preservation are priorities, not maximum lifespan.
Q: Why would I choose Smooth Crown instead of X-Groove tread?
A: Smooth Crown tread is optimal for load wheels that roll but do not drive the truck. It minimizes floor marks and noise, lasts longer than X-Groove, and is standard on most warehouse lift trucks. Use Smooth Crown for in-aisle load wheels. Reserve X-Groove for drive wheels that need traction during pushing, pulling, or steep ramp work.
Q: How do I diagnose if my Smooth Crown wheel is failing?
A: Check for flat spots (worn areas on one side of the wheel), flat-top wear (worn center), cracks, or discoloration indicating heat damage. Spin the wheel by hand; it should rotate freely without wobble or grinding. If the wheel no longer grips or feels slippery during operation, or if the surface is glazed and shiny, replace the wheel set.
Q: What is the typical replacement interval for EZ 85A wheels in a warehouse?
A: Expect 12 to 24 months of service life with EZ 85A in normal warehouse use, assuming 8 to 10 hours daily operation. High-cycle operations with frequent stops, starts, and heavy loads may require replacement every 10 to 12 months. Inspect all wheels every quarter for wear and replace as a matching set to maintain even handling.
Q: Is the SU 13 X 4.5 X 8-SC-EZ compatible with my truck if I have AGM batteries?
A: Wheel compatibility is independent of battery type. The SU 13 X 4.5 X 8-SC-EZ wheel fits your truck based solely on hub size and bolt pattern, not battery configuration. Any lift truck with an 8-inch hub and correct bolt pattern will accept this wheel, regardless of whether it uses flooded lead-acid or AGM batteries.