Product Description
Oil seal
Frequently Asked Questions
Q: What is SKU 00591-71480-81 and where is it used?
A: SKU 00591-71480-81 is an oil seal used in fork lift hydraulic systems and drivetrain components. This seal prevents hydraulic fluid leakage from cylinders, pumps, and motor shafts. It is compatible with fork lifts from Crown, Toyota, Raymond, Yale, Hyster, and other major OEMs.
Q: What seal material is this part made from?
A: This oil seal is constructed with a nitrile rubber (NBR) elastomer compound bonded to a steel spring case. Nitrile provides excellent resistance to mineral hydraulic oils, water contamination, and moderate temperature swings typical in material handling operations.
Q: How do I know if this seal is the correct size for my equipment?
A: Verify the seal dimensions by checking your equipment manual or the original seal specification. Key dimensions include outer diameter, inner diameter, and width. Cross-reference the original OEM part number with SKU 00591-71480-81 to confirm compatibility. If dimensions do not match exactly, do not use the seal.
Q: What causes oil seal failure and how often should it be replaced?
A: Oil seals fail due to material degradation, improper installation, excessive shaft runout, or contaminated hydraulic fluid. Under normal operating conditions, a seal typically lasts 2 to 4 years. Replace seals immediately if you notice hydraulic fluid leaks at cylinder rods, motor shafts, or pump housings.
Q: Does this seal work with synthetic hydraulic fluids?
A: Nitrile seals (NBR) like SKU 00591-71480-81 are designed for mineral-based hydraulic oils. Compatibility with synthetic fluids may vary. If your equipment uses synthetic hydraulic fluid, confirm with the seal manufacturer or your equipment OEM that this seal is compatible before ordering.