Rod seal K22 3x6x2,5 NBR

Hydraulic gland seal type K22 - single-acting seal. Also called a "lip seal". It has lips that differ in shape and size. The inner (dynamic) lip is shorter than the outer (static) one and faces the piston rod, which gives a high sealing effect. The K22 ring is used to seal the piston rod of a hydraulic cylinder. It is made of NBR material. The dimensions d and D given in the designation correspond to the housing; that is, to select a seal, you need to measure the inner and outer diameter of the housing in which the ring is installed. The third dimension b in the designation is equal to the height of the ring. This value b should always be smaller than the groove width B. This clearance is necessary for the seal to work properly. The difference B-b for cups with a height of up to 4,76 mm is 0,5 mm (-0 / + 0,2), for cups with a height above 4,81 mm it is 1 mm (-0 / + 0,2). This ring can be easily installed in closed grooves. Use installation tools made of soft materials without sharp edges. Lubricate the seal with hydraulic oil before installation.