ETP Shaft locking bushings from Zero-Max produce accurate and concentric mounting where repeated mounting and dismantling of components is required.
The bushings incorporate a double-walled sleeve encapsulating a pressure medium.
When the actuation screw is tightened it forces the inner and outer wall of the bushing to expand uniformly against the shaft and hub of the mounted component.
The result is concentricity to 0.001in TIR.
Mechanical devices, by comparison, rely on precise and accurate tightening of the actuation screws to avoid excessive TIR.
Additionally, extremely high compressive forces are imparted on the shaft by mechanical bushings.
The ETP Classic has flange-mounted actuation screws, while the ETP Express has just one mounting screw positioned in a radial location.
The single actuation screw of the ETP Express is said to be the fastest and easiest way to mount components accurately, saving space and time, and being easy to access.
Both ETP Classic and ETP Express operate in temperature ranges from -22 to 180F.
The ETP Classic handles torque ranges from 40 to 11,413ft/lbs, while the ETP Express handles torque ranges from 40 to 6,400ft/lbs.
Neither of these require lubrication and they are available in a full range of inch and metric sizes in both standard steel and stainless steel.
Product Model | Inside Diameter | Outside Diameter | Thickness |
ML6010 KOYO | 6 | 10 | 2.5 |
635 KOYO | 5 | 19 | 6 |