ETP-TECHNO®

Locking bush for maximum precision and frequent assembly

The ETP-TECHNO® is a hydraulic locking bush with the highest precision. It is especially suitable for quick and frequent assembly and/or adjustments of the hub with extreme accuracy. ETP-TECHNO® can be installed/removed up to 5,000 times. It is easy to mount with just one screw and boasts excellent concentricity. ETP-TECHNO® is the ideal product for very high-precision tasks.

Highlights

Very rapid assembly/disassembly with just ONE radial screw
Radial pressure screw allows for space-saving arrangement
Can be installed/removed up to 5,000 times
Excellent concentricity (≤ 0.006 mm), even after being installed multiple times
Double sealing function
Compact mounting dimensions
Precise positioning, no axial displacement during mounting
Standard versions for torque range from 50 to 32,000 Nm
Standard versions for shaft diameters from 15 mm to 130 mm

Structure

The hydraulic locking bush consists of a double wall, hardened steel sleeve filled with a pressure medium and a flange element. The flange element contains a press/pressure mechanism, which consists of a screw and piston with a double sealing function, an O-ring and a steel ball, which presses against a spherical seat.

Function

When the pressure screw is tightened, the double-wall sleeve expands evenly against the shaft and the hub and thereby creates a fixed connection. After loosening the pressure screw, ETP-TECHNO® returns to its initial state and is easy to remove.