Product Description
Rubber Press-On W/ Walnut
Specifications: 13.500 inch diameter x 5.500 inch width (13.500" x 5.500" | 13.5 x 5.50 wheel | 13-1/2 x 5-1/2 | 342.90mm x 139.70mm)
Specifications
Wheel Specifications
| Outside Diameter (in) | 13.500 |
| Width (in) | 5.500 |
| Outside Diameter (mm) | 342.90 |
| Width (mm) | 139.70 |
| Drive Tire Profile | Smooth Flat |
| Material | Rubber |
Frequently Asked Questions
Q: What does SF-CGRIP mean on the SU 13.5x5.5x8-SF-CGRIP-R tire part number?
A: SF stands for Smooth Flat tread profile. CGRIP refers to a center grip or enhanced friction compound and walnut shell filler embedded in the rubber. This combination provides better lateral stability and slightly higher coefficient of friction than standard smooth rubber, especially on wet or slightly oily concrete floors.
Q: Is SU 13.5x5.5x8-SF-CGRIP-R equivalent to other supplier part numbers?
A: SU 13.5x5.5x8-SF-CGRIP-R is a Solid Tire (SU brand) product. Equivalent products from other suppliers include Yale L019747, Hyster HY4075269 (if 13.5 x 5.5), and Raymond 6339150. Always cross-reference the full specification (13.5 OD x 5.5 width x 8 rim, smooth flat, rubber) before substituting, as some competitors use similar numbers for different sizes.
Q: Can walnut shell filler in SF-CGRIP-R cause wheel hub corrosion?
A: Walnut shells are inert and do not cause corrosion themselves. However, if the press-on tire is not sealed properly or moisture enters the hub interface, the combination of rubber, filler, and trapped water can accelerate hub oxidation. Ensure the wheel hub is clean and dry before pressing on the tire, and inspect the hub periodically for surface rust or pitting.
Q: How does SF-CGRIP-R performance compare to standard smooth rubber on wet floors?
A: SF-CGRIP-R provides approximately 10 to 15 percent higher friction coefficient than plain smooth rubber due to the walnut filler texture and enhanced rubber compound. On wet concrete or light oil film, stopping distance is reduced and traction is improved. On dry concrete, the difference is negligible. It does not perform well in heavy water or slippery conditions; for those, use traction-pattern tires.
Q: What is the typical lifespan of SU 13.5x5.5x8-SF-CGRIP-R in a warehouse environment?
A: Warehouse duty typically yields 2500 to 4500 operating hours before replacement is needed. Lifespan depends on load weight, floor surface roughness, turn frequency, and ambient temperature. Rough concrete and frequent turning reduce life. Indoor climate-controlled warehouses extend life versus outdoor or dock areas. Monitor tread depth and surface cracks every 6 months or after 1500 hours of operation.
Q: Do I need a tire press or can I hand-install SU 13.5x5.5x8-SF-CGRIP-R?
A: You must use a tire press. The press-on solid tire requires even, controlled pressure to seat properly on the wheel rim without damage. Hand installation or hammer blows risk tire distortion, uneven seating, and premature failure. Do not attempt to use heat guns or force methods. Always use proper equipment and follow manufacturer installation procedures.
