Product Specifications
Precision Gearheads
Right Angle
NR (Right-Angle)
Ratio
Units
Frame Size
NR23
NR34
NR42
Nominal Output Torque, Tnom r
1-3
in lb
16
64
123
Nm
2
7
14
5
in lb
27
107
205
Nm
3
12
23
8-10
in lb
40
142
250
Nm
5
16
28
15
in lb
46
170
300
Nm
5
19
34
20-100
in lb
50
180
350
Nm
6
20
40
Max. Acceleration Output Torque,
T
acc r
1-3
in lb
24
95
185
Nm
3
11
21
5
in lb
40
160
307
Nm
5
18
35
8-10
in lb
60
210
375
Nm
7
24
42
15
in lb
70
255
450
Nm
8
29
51
20-100
in lb
75
270
525
Nm
9
31
59
Nominal Input Speed, Nnom r
All
RPM
4,000
4,000
4,000
Max. Input Speed, Nmax r
All
RPM
5,500
5,000
4,500
Standard Backlash
1, 3, 5, 8, 10
arc min
30
25
25
15-100
arc min
20
20
20
Low Backlash
1,3, 5, 8, 10
arc min
15
15
15
15-100
arc min
10
10
10
Efficiency at Nominal Torque
All
%
95
95
95
Moment of Inertia
All
oz in sec2
0.0001
0.0009
0.007
gm cm sec2
0.0072
0.065
0.05
Maximum Weight
All
lb
1
3
6
kg
0.5
1.4
3
Radial Load (1)
All
lb
150
250
500
N
670
1,100
2,200
Axial Load
All
lb
75
125
250
N
335
550
1,100
(1) Radial Loads are measured at 12.7mm (0.5in) from the gearhead mounting surface. These ratings are based on gearhead making more than one revolution on output shaft.
Note: Ratio 1:1 is available with coupling drive only.



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