Product Description
SU 9112-A Guide Wheel Assembly for electric lift truck aisle guidance, utilizing sealed ball bearings and polyurethane or composite tread for lateral load guidance in industrial applications. Suitable for Liftsplus.com and equivalent electric lift truck wheel sections. Technical specifications include steel core, precision bearing, and tread material for high wear resistance.
Specifications
Material & Construction
| Tread Hardness | 85-95 Shore A (for polyurethane tread, value to be validated with OEM) |
| Bearing Material | High-carbon chromium steel, sealed to prevent ingress |
Part Numbers & Compatibility
| Manufacturer Part Number | SU 9112-A |
Performance
| Operating Duty | Continuous lateral aisle guidance during electric lift truck operation |
Frequently Asked Questions
Q: What tread hardness does SU 9112-A polyurethane have and why does it matter?
A: SU 9112-A polyurethane tread is specified at 85 to 95 Shore A hardness. Harder tread (95 Shore A) resists lateral wear but provides less grip on wet floors. Softer tread (85 Shore A) grips better but wears faster. Confirm the exact hardness with OEM documentation—wrong hardness causes slipping or uneven wear and misalignment of the pallet in the aisle.
Q: Is SU 9112-A compatible with both polyurethane and composite tread options?
A: SU 9112-A wheel hub accepts both polyurethane and composite tread materials. Polyurethane is standard; composite is used for specialized applications (steel-warehouse floors, conductive environments). If your truck originally came with one type, verify compatibility before switching—bearing and bore dimension remain constant, but tread performance and wear rates differ significantly.
Q: How do you maintain the sealed ball bearings on SU 9112-A for continuous lateral guidance?
A: SU 9112-A bearings are sealed and cannot be relubricated in the field. Maintenance consists of inspection: spin the wheel monthly and listen for grinding, check for temperature buildup, and verify smooth rotation. If the bearing binds or makes noise, replacement is required. Sealed bearings are maintenance-free until failure—there is no preventive lubrication.
Q: What operating duty cycle is SU 9112-A designed for and can it be overloaded laterally?
A: SU 9112-A is rated for continuous lateral aisle guidance during normal electric lift truck operation—typically 400 to 600 lateral positioning cycles per day. Overloading (exceeding lateral load specification or off-angle pallet contact) accelerates bearing and tread wear. If the pallet repeatedly hits the guide wheel hard, the truck alignment or operator technique is incorrect—do not increase wheel strength as a workaround.
Q: How do you identify if SU 9112-A is wearing unevenly or misaligned?
A: Uneven tread wear on SU 9112-A indicates misalignment or excessive lateral force. Check the tread profile—one edge should not be noticeably flatter than the other. If wear is one-sided, the truck frame may be bent or the wheel bore may be damaged. Inspect the axle bore for eccentricity and the truck frame for alignment before replacing the wheel.