Zero Backlash Couplings - DieQua Corporation

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R+W Model EK7 - 2D & 3D CAD Drawing Downloads

Unique design with our standard single screw clamp on one side and an expanding shaft on the other for connecting to hollow bores without a key.

R+W Model EK7
Series
5
10
20
60
150
300
450
800
Type (Elastomer Insert)
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
Rated Torque (Nm)
TKN
9
12
2
12.5
16
4
17
21
6
60
75
20
160
200
42
325
405
84
530
660
95
950
1100
240
Max. Torque (Nm) *
TKmax
18
24
4
25
32
6
34
42
12
120
150
35
320
400
85
650
810
170
1060
1350
190
1900
2150
400
Overall length (mm)
A
22
28
40
46
51
68
76
94
Outer Diameter (mm)
B
25
32
42
56
66.5
82
102
135
Outer Diameter Screwhead (mm)
BS
25
32
44.5
57
68
85
105
139
Fit Length (mm)
C1
8
10.3
17
20
21
31
34
46
Fit Length (mm)
C2
12
20
25
27
32
45
55
60
Inner Diameter possible from Ø to Ø H7 (mm)
D1
4-12.7
5-16
8-25
12-32
19-36
20-45
28-60
35-80
Outer Diameter possible from Ø to Ø H7 (mm)
D2
10-16
13-25
14-30
23-36
26-42
38-60
42-70
42-80
Inner DIameter (Elastomer Insert)(mm)
DE
10.2
14.2
19.2
27.2
30.2
38.2
46.2
60.5
Screw (ISO 4762/12.9)
E1
M3
M4
M5
M6
M8
M10
M12
M16
Tightening Torque of the Mounting Screw (Nm)
E1
2
4
8
15
35
70
120
290
Screw (ISO 4762/12.9)
E2
M4
M5
M6
M8
M10
M12
M16
M16
Tightening Torque of the Mounting Screw (Nm)
E2
4
9
12
32
60
110
240
300
Distance Between Centers (mm)
F
8
10.5
15.5
21
24
29
38
50.5
Distance (mm)
G
4
5
8.5
10
11
15
17.5
23
Hub Length (mm)
H
7
7
10
11
16
20
27
27
Download - 2D DXF
Download - 3D Step

*Maximum transferable torque of the clamping hub depends on the bore diameters (bore/shaft clearance 0.01 mm to 0.05 mm shaft oiled).


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Bloomingdale, IL 60108-3105
Phone: 630-980-1133 Fax: 630-980-1232

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