FIELD: machine engineering.
SUBSTANCE: provide existence of an internal disk (25) having the first front side (25X) and the second front side (25Y) opposite to each other, the central axial hole (18) and at least one channel (23) for lubricant oil, hammer the specified channel (23) and remove, after the specified hammering, the thickness (D) of the internal disk on both sides of this disk.
EFFECT: improve the reliability of the device by improving the manufacturing process of sealing cups.
9 cl, 24 dwg
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