Product Description
Poly Press-On
Specifications: 10.500 inch diameter x 4.000 inch width (10.500" x 4.000" | 10.5 x 4.0 wheel | 10-1/2 x 4 | 266.70mm x 101.60mm)
Specifications
Wheel Specifications
| Outside Diameter (in) | 10.500 |
| Width (in) | 4.000 |
| Outside Diameter (mm) | 266.70 |
| Width (mm) | 101.60 |
| Drive Tire Profile | Tapered Side Wall |
| Material | Polyurethane |
Frequently Asked Questions
Q: What is the difference between tapered side wall and smooth flat tire profiles?
A: Tapered side wall (TSW) tires taper inward from rim to tread center and are designed for vehicles that require directional stability and lateral support. Smooth flat (SF) tires maintain a flat profile across the width. TSW is typically used on steer and drive wheels where steering control matters. Choose TSW for front wheel applications on lift trucks requiring tighter turning radius and control. SF profiles are common on rear wheels where load carrying capacity and straight-line stability are priorities. Always verify your truck model documentation to confirm which profile your specific position requires.
Q: Can I use SU 10.5x4x8-TSW-P on both electric and manual lift trucks?
A: SU 10.5x4x8-TSW-P is rated for electric lift truck applications. Manual lift trucks often use different wheel specifications because manual jacks do not require the same load distribution and steering characteristics as powered equipment. Verify your equipment nameplate or parts manual before ordering. Using incorrect wheel specs can affect truck stability and create safety hazards. Contact the OEM or a parts specialist if your manual truck has the same rim size to confirm compatibility.
Q: What is the maximum load capacity for the SU 10.5x4x8-TSW-P wheel?
A: Load capacity depends on truck configuration, wheel position (steer vs drive), and total wheel set. A single SU 10.5x4x8-TSW-P wheel does not carry full truck capacity alone. For accurate load ratings, refer to your truck nameplate and the wheel manufacturer data sheet. Overloading beyond rated capacity causes premature wear, tread separation, and rim failure. Verify load per wheel by dividing truck capacity by total wheels, then confirm against spec sheet. When in doubt, contact your parts supplier with your truck model number and serial range.
Q: Does SU 10.5x4x8-TSW-P require press-on tools or is installation plug and play?
A: SU 10.5x4x8-TSW-P is a press-on tire that must be mounted onto a wheel core using a tire press. This is not plug and play. Do not attempt hammer installation as this can damage the tire and core. You need a hydraulic press rated for press-on wheel assembly work. Typical procedure is press-off old tire, clean wheel core thoroughly, apply release agent, and press new tire straight on ensuring even seating. Improper pressure or angle causes core cracking. Most fleet maintenance departments and tire shops have correct presses. If you do not have press access, order pre-mounted wheels instead.
Q: How long does a SU 10.5x4x8-TSW-P polyurethane tire last in typical operation?
A: Polyurethane press-on tire life ranges from 2,000 to 5,000 operating hours depending on floor surface, load, maintenance, and driving style. Smooth indoor concrete extends tire life. Rough outdoor concrete, cleats, and rough fork operation shorten life. Inspect tires every 500 hours for uneven wear, cracks, or tread loss. Replace immediately if core becomes visible or sidewall cracks appear. Regular wheel alignment and pressure checks on pneumatic-tired vehicles prevent premature wear. Keep trucks clean to reduce abrasive material buildup. Polyurethane cannot be retreaded, so plan for full replacement when worn.
Q: Is SU 10.5x4x8-TSW-P compatible with different rim bore sizes?
A: No. SU 10.5x4x8-TSW-P is designed for 8 inch rim diameter only. The tire bore is precision engineered for that specific rim size. Attempting to press this tire onto a 6.5 inch or other different size rim will cause improper seating, rim damage, and tire failure. Always verify rim diameter before ordering. The format x8 in the part number denotes the 8 inch rim size. If you need a different rim diameter for your truck, order the correct part number variant for that size. Mixing rim sizes is a safety hazard and voids manufacturer warranty.