Patented in 1980窶s and registered by ETP Transmission AB Sweden, these keyless bushes remain the best hub-shaft connection, even after several decades.
ETP bushes consist of a thin walled cylinder filled by a 'medium'. When this medium is pressurised, they tend to expand the thin walled cylinders and grip both the shaft and the component at the same time.
Inserting the ETP Bush into the product and mounted on the shaft, the screws are tightened. This tightening increases the pressure on the medium which exerts pressure on the walls and grip the shaft and the component simultaneously.
Available to suit shaft diameters from 15 to 220 mm, in various types.
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