Product Description
Crown OEM load wheel assembly CR 81645-020-A, polyurethane, 5-inch outside diameter, 2.88-inch tread width, 2.44-inch bore, 0.83-inch bearing bore depth, 300 Series, compound 306, Shore A 97A, with shoulder bearings for electric lift truck applications.
Specifications
Material & Construction
| Wheel Material | Polyurethane bond |
Part Numbers
| OEM Part Number | CR 81645-020-A |
| Manufacturer Part Number | CR 81645-020-A |
Frequently Asked Questions
Q: What are the precise dimensions of the CR 81645-020-A?
A: The CR 81645-020-A has a 5-inch outside diameter, 2.88-inch tread width, 2.44-inch bore diameter, and 0.83-inch bearing bore depth. These specifications define fitment; verify your equipment matches these dimensions exactly before ordering.
Q: What material specifications define the CR 81645-020-A?
A: The CR 81645-020-A uses a polyurethane bond tread with 300 Series compound 306, Shore A 97A hardness. The higher 97A durometer (versus standard 95A) provides increased tread stiffness and wear resistance for demanding applications.
Q: How does the 97A hardness in the CR 81645-020-A differ from softer wheels?
A: The 97A Shore A polyurethane is harder and more resistant to cutting and abrasion than softer compounds. This increased hardness reduces wear in rough or debris-laden environments but may provide slightly less grip on smooth, clean floors.
Q: What electric lift truck applications is the CR 81645-020-A designed for?
A: The CR 81645-020-A is a Crown OEM load wheel for electric lift truck applications. The 300 Series designation and 97A compound suggest it is engineered for heavy-duty or prolonged-use environments. Verify your specific Crown model compatibility.
Q: Does the CR 81645-020-A include integrated bearings?
A: The CR 81645-020-A includes shoulder bearings integrated into the wheel assembly. The 0.83-inch bearing bore depth specification is critical for correct installation and alignment. Do not modify or force the bearing bore.
Q: What maintenance intervals should the CR 81645-020-A follow?
A: Inspect the wheel assembly regularly for tread wear, contamination, cracks, or bearing damage. The 97A hardness provides extended life compared to softer compounds. Replace when tread wear becomes uneven or bearing movement is detected.