568-224 BUNA 70 SQUARE CUT RINGS

This square-cut ring is supplied in AS568-224 black Buna-N (Nitrile) 70 Shore A 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 SH70224. It presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

Expect good resistance to many alcohols, water, and hydraulic fluids. Buna-N (Nitrile) offers low compression set under sustained load, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or strong acids are present. The profile itself contributes a flat contact band that spreads sealing load across a wider area and a rectangular section that will not roll in the groove. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

Typical settings include agricultural equipment, construction equipment, and fluid power.

SH70224 ships individually. Unit weight is approximately 2.1486 g. Check the compound against your process media, pressure and temperature before committing to a design.