Zero Backlash Couplings - DieQua Corporation

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R+W Model EK4 - 2D & 3D CAD Drawing Downloads

Elastomer insert coupling, one end with hollow bore and keyway to accommodate conical shafts. The other end has our standard single screw clamping hub.

R+W Model EK4
Series
20
60
150
Type (Elastomer Insert)
A
B
C
A
B
C
A
B
C
Rated Torque (Nm)
TKN
17
21
6
60
75
20
160
200
42
Max. Torque (Nm) *
TKmax
34
42
12
120
450
35
320
400
85
Overall length (mm)
A
42
50
57
Outer Diameter Hub (mm)
B1
42
56
66.5
Outer Diameter Conical Hub (mm)
B2
variable
variable
variable
Outside Diameter with Screwhead (mm)
BS
44.5
57
68
Mounting Length (mm)
C1
25
30
35
Mounting Length (mm)
C2
variable
variable
variable
Inner Diameter Range H7 (mm)
D1
8-25
12-32
19-36
Possible Conical Diameter (mm)
D2
According to customer requirements
Inner Diameter (Elastomer Isert)(mm)
DE
19.2
27.2
30.2
Mounting Screw (ISO 4762/12.9)
E1
M5
M6
M8
Tightening Torque of the Mounting Screw (Nm)
E1
8
15
35
Distance Between Centers (mm)
F
15.5
21
24
Distance (mm)
G
8.5
10
12
Length (mm)
H
variable
variable
variable
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).


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

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