Universal U-cup seal 125 x 155 x 15 MA21 (N21) NBR, Dichtomatik
Code: SKL_M137800Product detailed description
MA21 (now listed as U-Cup N21) is a symmetrical single-acting U-cup seal by Dichtomatik (Freudenberg) made of NBR 90 with an offset sealing lip. Thanks to its symmetrical profile it can be used as both a piston and a rod seal.
Advantages: good static and dynamic sealing effect, easy installation by snapping into the groove, wide range of use (piston and rod), particularly suitable as a spare part.
Application: Hydraulics, standard cylinders, single-acting pressure loads, preferably at lower pressures.
Technical parameters: material NBR 90 Shore A, pressure up to 16 MPa, sliding speed up to 0.5 m/s, temperature −30 °C to +100 °C. Groove flank roughness Ra ≤ 3 µm.
Size: inner diameter d 125 mm, outer diameter D 155 mm, height H 15 mm.
Dimensions: 125x155x15, 125-155-15, 125/155/15, 125 x 155 x 15 mm.
Also searched as: U-cup, seal, U-cups, seals, hydraulic U-cup, hydraulic seal, Manschette, Dichtung, universal U-cup seal, symmetrical U-cup, U-cup seal, rod and piston seal, Nutring, MA21, MA 21, N21, Dichtomatik, Freudenberg, NBR, nitrile.
Manufacturer designation: MA21-125X155X15, N21.