Shaft End; Protective Device; Vibration Class - Kollmorgen AKMH Series Instruction Manual

12.2.4 Shaft end

Power transmission is made through the cylindrical shaft end, fit k6 to EN 50347, with a lock-
ing thread. Bearing life is calculated with 20.000 operating hours.
Radial force
If the motors drive via pinions or toothed belts, then high radial forces will occur. The per-
missible values at the end of the shaft may be read from the diagrams in chapter "Dimension
Drawings" (➜ # 60). The maximum values at rated speed are listed in the technical data.
Power take-off from the middle of the free end of the shaft allows a 10% increase in F
Axial force
When assembling pinions or wheels to the axis and use of e.g. angular gearheads axial
forces arise. The permissible values at the end of the shaft may be read from the diagrams in
chapter "Dimension Drawings" (➜ # 60). The maximum values at rated speed are listed at
the technical data.
Coupling
Double-coned collets have proved to be ideal zero-backlash coupling devices, combined, if
required, with metal bellows couplings.

12.2.5 Protective device

The standard version of each motor is fitted with an electrically isolated temperature sensor
(rated temperature 155°C ± 5%). The sensor does not provide any protection against short,
heavy overloading. The sensor is integrated into the monitoring system of the AKD. Sensor
characteristics diagram:

12.2.6 Vibration class

The motors are made to vibration class A according to EN 60034-14.
For a speed range of 600 rpm to 3600 rpm and a frame size between 56 mm and 132 mm, this
means that the actual value of the permitted vibration severity is 1.6 mm/s.
Velocity [rpm]
<= 1800
> 1800
max. rel. Vibration Displacement [µm]
90
65
AKMH Installation | Table of Contents
max. Run-out [µm]
23
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Kollmorgen | March 2014
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