00591-35723-81

Frequently Asked Questions

Q: What is the 00591-35723-81 and where does it fit?
A: The 00591-35723-81 is a Toyota OEM double row ball bearing assembly designed for mast channels in manual pallet jacks. The double row design distributes both radial and axial loads across two bearing rows, allowing the mast to handle combined lifting and lateral forces. This bearing fits Toyota hand pallet jack mast assemblies.

Q: What loads does a double row ball bearing handle differently than a single row bearing?
A: Double row bearings support combined axial and radial loads simultaneously, which is critical in pallet jack mast operation where the load creates both downward force and lateral stress on the mast channel. The double row configuration allows higher load capacity in a compact space compared to single row designs. Using a single row bearing as a substitute will cause premature failure.

Q: What material and construction does the 00591-35723-81 use?
A: The 00591-35723-81 uses case-hardened bearing steel for the races and ball elements. Case hardening increases surface hardness while maintaining toughness in the core, providing resistance to spalling and wear under the repeated load cycles typical of pallet jack operation. The bearing races are precision ground for tight tolerances.

Q: Can the 00591-35723-81 be used on non-Toyota manual pallet jacks?
A: The 00591-35723-81 is specified for Toyota manual pallet jacks. Before using on other equipment, verify that the bore diameter, outside diameter, and width match your mast channel dimensions. Do not assume compatibility based on bearing type alone. Reach out to us with your equipment specifications to confirm fitment.

Q: How do I know when the 00591-35723-81 needs replacement?
A: Replace this bearing if the mast has excessive vertical play, produces grinding or clicking noise during lift cycles, or exhibits rough rotation. Bearings with internal wear create play in the mast channel, making it difficult to control load position. Once bearing noise or play appears, bearing failure is imminent and replacement is necessary.

Q: Is there a cross-reference part number for the 00591-35723-81?
A: The 00591-35723-81 is a Toyota OEM part number with no available cross-reference SKUs listed. If you need an equivalent bearing for equipment other than Toyota, contact us with your mast dimensions and load specifications and we can identify compatible options.