Omron SMARTSTEP 2 R88M-G Series User Manual page 149

 When connecting to a V-belt or timing belt, consult the maker for belt selection and tension.
 A radial load twice the belt tension will be placed on the motor shaft. Do not allow a radial load
exceeding specifications 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 structure so that the belt tension can be adjusted.
 Radiator Plate Installation Conditions
 When the Servomotor is installed in a small space, the Servomotor temperature may rise unless
sufficient surface area is provided to allow heat dissipation from the Servomotor mounting surface.
Take measures such as inserting a radiator plate between the Servomotor mounting surface and
the flange. If radiator plates are not inserted, the motor may be damaged by increased
temperatures. For radiator plate specifications, refer to 3-2 Servomotor Specifications.
 Servomotor heating will depend on the material of the mounting surface and on the installation
environment. Be sure to check the Servomotor temperature under actual operating conditions.
 The Servomotor temperature may rise sharply if the Servomotor is installed in an environment
such as near a heat source. Take the following countermeasures as required by the installation
environment.
 Reduce the load ratio.
 Modify the Servomotor's heat dissipation conditions.
 Forcibly cool the Servomotor by installing a cooling fan.
 Water and Drip Resistance
 The protective structure for the Servomotors is as follows:
IP65 (except for through-shaft parts and cable outlets)
 Countermeasures against Oil
When using the Servo Motor in an environment in which the shaft through-hole is exposed to oil
spray, use a Servomotor with an oil seal. The operating conditions for a Servomotor with an oil seal
are as follows:
 Keep the oil level below the lip of the oil seal.
 Set up good lubricating conditions so that any oil spray falls on the oil seal.
 If the Servomotor is used with the shaft pointing upwards, be careful to not allow oil to accumulate
at the lip of the oil seal.
Pulley
Belt
Tension
Radiator plate
4-1 Installation Conditions
Tension adjustment
(Make adjustable.)
4
4-4