7 HK-ST SERIES
7.6 Geared servo motor
165
7
For high precision applications (G5/G7)
Specifications
*1 If the permissible load to motor inertia ratio exceeds the indicated values, contact your local sales office.
*2 The gear reducer efficiency varies depending on the reduction ratio. The gear reducer efficiency also varies depending on the operating
conditions such as output torque, speed, and temperature. The values in the table are the representative values at the rated torque,
rated speed, and the room temperature, and are not guaranteed values.
*3 The unit of backlash is calculated as follows: 1 arc minute = 0.0167 °
*4 The torque characteristics of the HK-ST152 is the specifications calculated by derating the HK-ST172W with the output ratio (rated
torque: 7.2 N•m). The moment of inertia is the same as the HK-ST172W.
*5 The torque of the geared servo motor does not increase even if in combination with a servo amplifier with a larger capacity.
Item Description
Mounting method Flange-mounting
Mounting direction Any direction
Lubrication method Grease lubrication (lubricant filled from the factory)
Output shaft rotation direction The same direction as the rotary servo motor
Backlash
*3
3 arc minutes or less on the gear reducer output shaft
Permissible load to motor inertia ratio
(converted into equivalent value on servo motor shaft)
*1
10 times or less
Maximum torque
*5
3 times the rated torque for the rotary servo motor
*4
Maximum speed
(For servo motor shaft)
3000 r/min
IP rating (gear reducer area) Equivalent to IP44
Gear reducer efficiency
*2
77 % to 92 %
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