Product Description
Valu-Jack VJ 55F4 thrust bearing is an OEM-specific component designed for hydraulic units in manual pallet jacks, compatible with Valu-Jack 5500-2 and similar models. Constructed of case-hardened high-carbon alloy steel for axial load support in hydraulic mechanisms.
Compatibility: Fits pallet jacks made by Valu-Jack, model 5500-2 Hydraulic Unit. Alternate model: 55002 Hydraulic Unit; 5500 2 Hydraulic Unit. SKU: VJ 55F4
Specifications
Dimensional
| Intended Axle Fit | Precision ground to fit within Valu-Jack 5500-2 hydraulic assemblies |
Material
| Material Specification | High-carbon alloy steel |
Part Numbers
| Manufacturer Part Number | VJ 55F4 |
| OEM Part Number | 55F4 |
| Compatible Models | Valu-Jack 5500-2, Valu-Jack 5500-54 manual pallet jack hydraulic unit |
Frequently Asked Questions
Q: What is the VJ 55F4 thrust bearing and where is it used?
A: The VJ 55F4 is a thrust bearing designed for the hydraulic unit of manual pallet jacks. It is an OEM-specific component engineered to support axial (end-to-end) loads within the hydraulic lifting mechanism of Valu-Jack 5500-2 and similar models.
Q: What material is the VJ 55F4 made from and why?
A: The VJ 55F4 is constructed from case-hardened high-carbon alloy steel. This material is selected for its ability to withstand repeated axial loads and friction generated during hydraulic lift cycles. Case hardening provides a hard outer surface to resist wear while maintaining toughness at the core.
Q: Which pallet jack models use the VJ 55F4?
A: The VJ 55F4 is compatible with Valu-Jack 5500-2 and Valu-Jack 5500-54 manual pallet jack hydraulic units. The bearing is precision ground to fit within these specific hydraulic assemblies.
Q: How is the VJ 55F4 precision manufactured?
A: The axle bore is precision ground to tight tolerances to ensure proper fit within the Valu-Jack 5500-2 hydraulic assembly. This precision fit is critical for correct bearing function and load distribution. Use only the OEM part number VJ 55F4 to guarantee dimensional accuracy.
Q: When does a thrust bearing typically need replacement?
A: Thrust bearings in hydraulic systems typically have a long service life when the hydraulic fluid is maintained and the system operates within design parameters. However, bearing failure can occur if the hydraulic system experiences pressure spikes, contamination, or lack of fluid maintenance. Replace the bearing if lift performance becomes sluggish, if you notice noise during lifting, or if you detect leakage around the hydraulic unit.
Q: What is the OEM part number for the VJ 55F4?
A: The OEM part number is 55F4. The manufacturer part number is VJ 55F4. Both designations refer to the same component for Valu-Jack 5500-2 and 5500-54 hydraulic units.