Zero Backlash Miniature Couplings - DieQua Corporation

R+W Model MK3 - 2D & 3D CAD Drawing Downloads

A unique bellows coupling design with an expanding shaft on one side, for connecting to a hollow bore, and a standard single screw clapming hub on the other. Ideal for connecting encoders, or other small shafts, to larger shafts.
R+W Model MK3
Series
5
10
15
20
45
100
Rated torque (Nm)
TKN
0.5
1
1.5
2
4.5
10
Overall length (mm)
A
20
23
26
22
25
28
24
30
27
33
36
36
44
41
51
Outer diameter (mm)
B
15
15
19
25
32
40
Fit length of hub (mm)
C1
9
9
11
13
16
16
Shaft Length (mm)
C2
10
10
12
12
15
20
Special bores from Ø to Ø H7 (mm)
D1
3-7
3-7
4-8
4-12.7
5-16
6-24
Standard bore H7 (mm)
D1
6
6
6
6/10
10
10
Standard shaft f7 (mm)
D2
8
8
10
12
14
16
Screw ISO 4762
E
M2
M2
M2.5
M3
M4
M4
Tighting torque of the assembly screw (Nm)
E
0.43
0.43
0.85
2.3
4
4.5
Distance between centers (mm)
F
4.5
4.5
6
8
10
15
Distance (mm)
G
3
3
3.5
4
5
5
Download - 2D DXF
Download - 3D Step