Sealing rings for ER sealing nuts on ER chucks are delivered as standard with drilled stop end screws for coolant through plain-ended tool shanks. To seal other types of shanks, sealing rings are used in conjunction with sealing nuts. Sealing range of a ring is nominal to -0.5 mm. Coolant pressure maximum 100 bar.
Insert sealing ring into the nut from the back, until it “clicks” into the nut’s front face. The sealing ring’s marked face should be oriented inside the nut to avoid erosion of the diameter information marking. Release by applying pressure onto the sealing ring’s front face.