Q-224 BUNA 70 Q RING

This quad-ring is supplied in AS568-224 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 1.734 in (44.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.012 in (51.1 mm), catalogued under part number QH70224. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) offers reliable performance in both static and dynamic service, strong abrasion and tear resistance. It resists hydraulic fluids, greases and lubricants, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or strong acids will shorten service life. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Typical settings include agricultural equipment, general industrial maintenance, and automotive.

Order part number QH70224, sold individually. Unit weight is approximately 1.7718 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.