Product Dimensions
Precision Gearheads
METRIC SIZES
Frame
Size
A
Square
Flange
B
Bolt
Hole
C
Bolt
Circle
D
Pilot
Diameter
E
Output
Shaft Dia.
F
Output
Shaft Length
G
Pilot
Thickness
H
Flange
Thickness
I
Recess
Length
J
Housing
Recess
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
RX60
60
2.362
5.5
0.217
70
2.756
50
1.969
16
0.63
25
0.984
2.5
0.098
13
0.512
36
1.417
5
0.197
RX90
90
3.543
6.5
0.256
100
3.937
80
3.15
20
0.787
40
1.575
3
0.118
17
0.669
51.5
2.028
6.5
0.256
RX115
115
4.528
8.5
0.335
130
5.118
110
4.331
24
0.945
50
1.969
3.5
0.138
20
0.787
63
2.48
7.5
0.295


Frame
Size
K
Dist. to Output
Centerline
L
Housing
Length
M
Housing
Width
N
Dist to Input
Centerline
O
Taper
Distance
P
Dist from
Shaft End
Q
Keyway
Length
R
Key
Height
S
Keyway
Width
T
Shoulder
Height
U
Shoulder
Diameter
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
RX60
66
2.598
96
3.78
79.3
3.122
43
1.693
14
0.551
5
0.197
16
0.630
18
0.709
5
0.197
0.5
0.02
22
0.866
RX90
103
4.055
148
5.827
110
4.33
58
2.283
25
0.984
6
0.238
28
1.102
24.5
0.965
6
0.236
0.5
0.02
35
1.378
RX115
122.5
4.823
180
7.087
135
5.315
77.6
3.055
32
1.26
8
0.315
32
1.260
27
1.063
8
0.315
1
0.039
45
1.772



NEMA SIZES
Frame
Size
B
Bolt
Hole
C
Bolt Circle Diameter
D
Pilot
Diameter
E
Output Shaft Diameter
F
Output Shaft
Length
N
Keyway
Length
O
Keyway
Depth
P
Keyway
Width
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
RX23
0.195
4.953
2.625
66.675
1.5
38.1
0.375
9.525
1
25.4
0.75
19.05
0.015
0.381
—
—
RX34
0.217
5.512
3.875
98.425
2.875
73.025
0.5
12.7
1.25
31.75
1.063
27
0.072
1.829
0.125
3.175
RX42
0.281
7.137
4.95
125.73
2.187
55.55
0.625
15.875
1.5
38.1
1.142
29.007
0.094
2.388
0.188
4.775
NOTE: NEMA sizes have 20% lower torque/stiffness ratings due to smaller output shaft diameter.

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