DATUM ELECTRONICS
M425 TORQUE TRANSDUCER HANDBOOK
17
M425 mass and dimensions (mm)
A
B
C
D
E
F
G
H
I
J
M425
model
size
Total
mass
Kgs
Rotor
mass
Kgs
Overall
length
Body
length
Body
dia.
Output
module
length
Output
module
height
Exposed
shaft
length
Shaft
dia.
G6 fit
Keyway
length
Keyway
width
Keyway
depth
off centre
Size 1 - A
0.83
0.246
184
130
66
112
3.5
27
15
22.5
5
4.3
Size 1 - B
0.83
0.253
184
130
66
112
3.5
27
15
22.5
5
4.3
Size 1 - C
0.83
0.269
184
130
66
112
3.5
27
15
22.5
5
4.3
Size 1 - D
0.83
0.291
184
130
66
112
3.5
27
15
22.5
5
4.3
Size 2 - A
2.09
1.194
240
150
85
112
3.5
45
30
44
8
11
Size 2 - B
2.09
1.288
240
150
85
112
3.5
45
30
44
8
11
Size 3 - A
6.90
4.097
315
150
110
112
5.5
82.5
50
78.5
12
20
Size 3 - B
6.90
4.439
315
150
110
112
5.5
82.5
50
78.5
12
20
Size 4 - A
20.67 12.508 425
200
135
112
5.5
112.5
75
78.5
20
30
Size 4 - B
20.67 13.807 425
200
135
112
5.5
112.5
75
78.5
20
30
Size 5 - A
38.48 26.889 416
173.7
170
112
5.5
121
110
116
32
44
Size 5 - B
38.48 27.699 416
173.7
170
112
5.5
121
110
116
32
44
Size 5 - C
38.48 28.585 416
173.7
170
112
5.5
121
110
116
32
44
Size 5 - D
38.48 29.422 416
173.7
170
112
5.5
121
110
116
32
44
A
B
C
D
E
F
K
L
M
N & O
M425
model
size
Total
mass
Kgs
Rotor
mass
Kgs
Overall
length
Body
length
Body
dia.
Output
module
length
Output
module
height
Exposed
shaft
length
Spline
outer
dia.
Spline
inner
dia.
Spline
width
Chamfer
and
radius
Size 6 - A
44.93 31.842 416
155
228.6 112
5.5
101.6
152.4
137
38
N = 0.5 - 1, O = 1.1 - 1.3
Size 6 - B
44.93 34.669 416
155
228.6 112
5.5
101.6
152.4
137
38
N = 0.5 - 1, O = 1.1 - 1.3
Table No. 9
SPECIFICATIONS
continued
B
D
F
F
E
A
Top
Side
End
Bottom
I
B
C
H
J
H
Diagram No. 17
3D models and STEP files are
available from Datum Electronics
to assist project planning.
Please contact Datum Electronics
for more information.
This drawing and its associated design is the property of Datum Electronics Ltd. and may not be copied or used for any purpose other than that for which it is supplied, without the express written authority from Datum Electronics Ltd.
Alphabet key for
M425 model sizes 1 to 5
K
M
N
O
L
Letter designation key for
M425 model size 6
Diagram No. 18
