
4. NOTES ON INSTALLATION
B–65152E/03
BCATLTLON EOT TFC α
34
CAUTION
2 When using a motor with no key
– In the same way as when using a motor with a key, use a pulley having the shape shown in
the figure below. This makes fretting less likely to occur.
– In the same way as when using a motor with a key, perform adjustment so that the runout of
the belt slot is 20µm or less when the pulley is rotated through one turn.
Example 1 Two sets of shupan ring RfN8006 are used.
The collar is pinched at two points by the two sets.
Example 2 Clamping sleeve DSM is used.
3 Before the pulley is mounted on the motor and the belt is looped, FANUC recommends that the
dynamic balance (field balance) be corrected.
4 Limit the radial load applied to the motor output shaft by the tension of the belt to the allowable
value described in the manual for each series. If the allowable value is exceeded, the bearing
may fail prematurely.
Shupan rings
Pulley
Output shaft
Collar
Clamping sleeve
NOTE
Shupan ring RfN8006 and clamping sleeve DSM are manufactured by RINGFEDER.