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Standard Models and Specifications
2-5
Reduction Gear Specifications
Reduction Gears for SMARTSTEP A-series Servomotors (R7G-@)
■
There are two kinds of reduction gears for SMARTSTEP A-series Servomotors:
• Reduction gears for 3,000-r/min Cylinder-style Servomotors
'
(Backlash 3
max. and backlash 45
• Reduction gears for 3,000-r/min Flat-style Servomotors
'
(Backlash 3
max. and backlash 45
There are four reduction ratios: 1/5, 1/9, 1/15, and 1/25. Select a reduction ratio to match the ca-
pacity of the Servomotor.
Note There are no 30-W reduction gears for Cylinder-style Servomotors.
Reduction Gears for Cylinder-style Servomotors
■
●
Backlash = 3' Max.
Model
50 W
1/5
R7G-VRSFPB05B50
1/9
R7G-VRSFPB09B50
1/15 R7G-VRSFPB15B50
1/25 R7G-VRSFPB25B50
100 W 1/5
R7G-VRSFPB05B100
1/9
R7G-VRSFPB09B100
1/15 R7G-VRSFPB15B100
1/25 R7G-VRSFPB25C100
200 W 1/5
R7G-VRSFPB05B200
1/9
R7G-VRSFPB09C400
1/15 R7G-VRSFPB15C400
1/25 R7G-VRSFPB25C200
400 W 1/5
R7G-VRSFPB05C400
1/9
R7G-VRSFPB09C400
1/15 R7G-VRSFPB15C400
1/25 R7G-VRSFPB25D400
750 W 1/5
R7G-VRSFPB05C750
1/9
R7G-VRSFPB09D750
1/15 R7G-VRSFPB15D750
1/25 R7G-VRSFPB25E750
Note 1. The reduction gear inertia indicates the Servomotor shaft conversion value.
Note 2. The enclosure rating for Servomotors with reduction gears is IP44.
Note 3. The allowable radial torque is the value for the center of the shaft.
'
max.)
'
max.)
Rated
Rated
Ratio
Maximum
rotation
torque
momentary
speed
rotation speed
N ⋅ m
r/min
%
600
0.517
65
900
333
0.93
65
500
200
1.67
70
300
120
2.78
70
180
600
1.19
75
900
333
2.29
80
500
200
3.82
80
300
120
6.36
80
180
600
2.71
85
900
333
3.78
66
500
200
6.31
66
300
120
11.1
70
180
600
5.40
85
900
333
9.49
83
500
200
15.8
83
300
120
26.4
83
180
600
10.8
90
900
333
18.3
85
500
200
30.5
85
300
120
50.8
85
180
Maximum
Reduction
momentary
gear inertia
torque
N ⋅ m
r/min
kg ⋅ m
1.56
4.13 × 10
2.81
3.53 × 10
5.04
3.67 × 10
8.40
3.59 × 10
3.60
4.08 × 10
6.91
3.43 × 10
11.5
3.62 × 10
19.2
3.92 × 10
8.12
1.53 × 10
11.3
2.68 × 10
18.9
2.71 × 10
33.4
2.67 × 10
16.2
3.22 × 10
28.5
2.68 × 10
47.6
2.71 × 10
79.3
2.79 × 10
32.0
7.17 × 10
54.3
6.50 × 10
90.5
7.09 × 10
151
7.05 × 10
Chapter 2
Allowable
Allowable
radial torque
thrust torque
N
N
2
–6
392
196
–6
441
220
–6
588
294
–6
686
343
–6
392
196
–6
441
220
–6
588
294
–6
1323
661
392
196
–5
–5
931
465
–5
1176
588
–5
1323
661
784
392
–5
–5
931
465
–5
1176
588
–5
1617
808
–5
784
392
–5
1176
588
–5
1372
686
–5
2058
1029
2-39
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