Omron OMNUC G5 R88M-K series User Manual page 169

 When connecting to a V-belt or timing belt, consult the manufacturer for belt selection and tension.
 A radial load twice as large as the belt tension can be placed on the motor shaft. Do not allow the
allowable radial load or more to be placed on the motor shaft. If an excessive radial load is applied,
the motor shaft and bearings may be damaged.
 Set up a movable pulley in the middle of the motor shaft and the load shaft so that the belt tension
can be adjusted.
Water and Drip Resistance
 The protective structure for the motors is as follows.
IP67 or equivalent (except for through-shaft parts)
Oil-water Measures
Use the Servomotor with oil seal if you are using it in an environment where oil drops can attach
to the through-shaft part. The operating conditions of the Servomotor with oil seal are as
follows.
 Place the oil level below the lip of the oil seal.
 Prepare a good lubricated condition under which oil droplets splash on the oil seal.
 If you are using the Servomotor with the axis in upward direction, make sure that no oil
accumulates on the lip of the oil seal.
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Pulley
Belt
Tension
4-1 Installation Conditions
Tension adjustment (Set a movable structure.)
4
4-4