Product Description
O ring
Frequently Asked Questions
Q: What is the material composition of the ME A 821 O ring?
A: The ME A 821 is a rubber O ring designed for hydraulic and pneumatic sealing applications in electric lift trucks. The exact elastomer compound depends on the application environment (fluid compatibility, temperature range, and pressure requirements). Verify the part drawing or contact us with your equipment model and operating conditions for material specification.
Q: Which electric lift truck models is the ME A 821 compatible with?
A: The ME A 821 fits multiple electric lift truck brands including Crown, Toyota, Raymond, Yale, Hyster, and Jungheinrich models. Compatibility depends on the specific seal cavity dimensions and circuit pressure. Confirm your equipment model and application before ordering.
Q: What dimensions should I verify for the ME A 821?
A: Standard O ring sizing follows ISO 3384 nomenclature. The ME A 821 designation indicates a specific bore diameter and cross-section width. Request the detailed part drawing to verify exact dimensions (inner diameter, outer diameter, and thickness) match your equipment cavity specifications.
Q: How long does the ME A 821 O ring typically last in service?
A: O ring lifespan depends on fluid type, operating temperature, pressure cycling, and seal design. Under normal conditions, expect 2-5 years of service life. Inspect periodically for extrusion, hardening, or fluid degradation. Replace immediately if you see leakage around the seal area.
Q: Is there a cross-reference part number for the ME A 821?
A: Cross-reference numbers depend on the OEM supplier. Contact us with your equipment manufacturer and model year to identify equivalent seal specifications or alternative part numbers from other suppliers.
