NSD Absocoder NCV-40H Series Specifications & Instruction Manual page 25

● Coupling of Turn-type ABSOCODER sensor
Item
(1) Coupling device
selection precaution
(2) Coupling device
installation precaution
Explanation
1. Selection of the coupling device should be based on
the following factors;
- The amount of a mounting error caused by the
machine design.
- The permissible error of coupling device.
- Reaction force of coupling device.
- Permissible shaft load of the sensor.
2. If the selected coupling device is larger than
necessary (When used in high vibration/shock
environments), the load which is applied to the shaft
by the vibrations/shocks will be increased by the
weight of the coupling device.
3. Be sure to select a coupling device with an adequate
transmission torque surplus relative to the sensor
shaft's torque.
17
Precaution
The selection of a larger
coupling than necessary
will increase the shaft load
which is caused by the
mounting error amount.
Excessive force applied
to the shaft can deform
the coupling and reduce
durability.