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Chapter 4
No-load running torque means the torque required to put CSF-3 under a no-load condition.
* Please contact your Harmonic Drive sales representative for more details.
● Measuring condition
Model: CSF-3-100-1U-CC ( Gear Head Type ）
Reduction ratio : 100
Measuring condition: Grease lubrication (Harmonic grease SK-2)
The torque value is the value after a trial run of at two hours at an input of 2000 r/min.
● Correction amount by reduction ratio
No-load running torques of Harmonic Drive vary in accordance with the reduction ratio. The values in
Graph 1 below are the values for the gear head type (1U-CC, reduction ratio 1/100). Other reduction
ratios can be calculated by adding correction amounts shown in Table 1.
Table 1
Reduction ratio
Correction
0.026
amount
Graph 1 No-load running torque of gear head type (1U-CC, reduction ratio 1/100)
1.00
0.10
0.01
-10
Chapter 4 No-load running torque
No-load running torque
Double-axial unit type
(1U)
30
50
0.023
0
10
Temperature °C
Gear head type
(1U-CC)
100
30
0.006
0.020
20
温度 （℃）
-
-
10
Unit: cNm
50
0.017
30
10000r/min
5000r/min
3500r/min
2000r/min
1000r/min
500r/min
40
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