Product Description
Crown CR 310125-306-88 triple load wheel assembly featuring 3.25 inch outside diameter polyurethane construction with 97 Shore A hardness. Complete assembly includes greaseable bearings with 2.047 inch bore diameter and 0.59 inch bearing depth. Compound 306 specification engineered for heavy load applications with independent wheel rotation to prevent coning and flat spotting. Suitable for long runs, dock boards, metal chip environments, and wet conditions.
Specifications
Material & Construction
| Wheel Material | Polyurethane (300 Series compound) |
| Material Hardness | 97 Shore A durometer |
Part Numbers & Compatibility
| OEM Part Number | CR 310125-306-88 |
| Cross-Reference Part Numbers | CR310125-306-88, CR31012530688, 31012530688 |
| Supersedes Part Number | 154840-306-88 |
| Wheel-Only Part Number | 310125-306 (without bearing assembly) |
| Assembly Configuration | Complete wheel assembly with greaseable bearings (suffix -88 designation) |
Performance Specifications
| Application Suitability | Long runs with heavy loads, dock boards with expansion joints, metal chip environments, wet operating conditions |
Frequently Asked Questions
Q: What does the -88 suffix indicate on the CR 310125-306-88?
A: The -88 designation indicates this is a complete assembly with greaseable bearings included. The -88 suffix denotes the bearing assembly variant, making this a turnkey wheel assembly ready to mount on your lift truck.
Q: What is included in the CR 310125-306-88 complete assembly?
A: The CR 310125-306-88 includes a 3.25 inch outer diameter polyurethane triple load wheel (97 Shore A hardness, compound 306), greaseable bearings with 2.047 inch bore diameter, 0.59 inch bearing depth, hub, seals, and retaining components. Everything needed for mounting is included.
Q: What is the wheel-only part number if I only need the wheel without bearings?
A: If you only need the polyurethane wheel without bearings, the part number is CR 310125-306. This allows you to source bearings separately or keep spare wheels for quick changeover.
Q: How often should the CR 310125-306-88 greaseable bearings be serviced?
A: Bearing maintenance intervals depend on load, frequency of use, and floor conditions. Inspect bearings regularly for noise, roughness, or resistance. Regreasing should follow your equipment manufacturers maintenance schedule, typically every 40-100 hours of operation for heavy-duty applications.
Q: Is the CR 310125-306-88 suitable for long runs, dock boards, metal chips, and wet conditions?
A: Yes. The CR 310125-306-88 assembly is engineered for demanding environments including long warehouse runs, metal chip operations, dock boards, and wet conditions. The triple wheel configuration with independent rotation prevents coning and flat spotting, and the 97A compound provides excellent durability on abrasive surfaces.
Q: What is the superseded part number for the CR 310125-306-88?
A: The CR 310125-306-88 supersedes the 154840-306-88 Crown OEM part number. Both reference the same triple load wheel assembly with greaseable bearings, but CR 310125-306-88 is the current cross-reference designation.