Omron ACCURAX G5 User Manual page 229

When connecting to a V-belt or timing belt, consult the manufacturer for belt selection and tension.
A radial load twice the belt tension will 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 in the axial direction, make sure that no oil accumulates on the lip
of the oil seal.
Radiator Plate Installation Conditions
Be sure to install a radiator plate on the Servomotor.If a radiator plate is not installed, the
Servomotor may be damaged due to temperature rise.Refer to 3-2, "Motor Specifications" for the
specifications of the radiator plate.
When the Servomotor is to be attached to the equipment, the Servomotor temperature may rise
if not enough radiation area is provided.Because a rise in temperature can vary depending on the
material of the mounting part or the environment, check the temperature on the actual
Servomotor.
Depending on the environment, such as when the Servomotor is installed near a heating element,
the Servomotor temperature may rise significantly.In this case, take any of the following
measures.
Lower the load ratio.
Review the heat radiation conditions of the Servomotor.
Install a cooling fan and apply forced air cooling to the Servomotor.
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Pulley
Belt
Tension
4-1 Installation Conditions
Tension adjustment (Set a movable structure.)
4
4-5