OK coupling mounting and dismounting kits
When mounting an OK coupling, a thin inner sleeve with a tapered outside diameter slides onto the shaft. A thick outer sleeve with a matching tapered inner surface fits over the inner sleeve. Oil is then injected between the sleeves. An integrated hydraulic connection drives the outer sleeve up the taper of the inner sleeve. When the outer sleeve has reached its final position, an interference fit is created - just as if the outer sleeve had been heated and shrunk into place. However, no heat is required, and the coupling can be removed just as easily as it was mounted.