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Designation
Elastomer Dog Coupling
Size
43
Version 1
with conical hub and shaft collar
Body material
aluminium
Component material
polyurethane
CTR=Radial spring stiffness N/
2500
CTS=Stat.tors. resist. Nm/arcm
0,4
D1/D2=Fastening hole
10
D4=Outside diameter
50
L=Length
78
MA=Tightening torque (Nm)
6
MN=Nominal torque Nm
43
Mt=Inertia moment (10⁻³ kgm²)
0,19
S2=Max. axial shaft displaceme
0,5
S=Max. lateral shaft displacem
0,1
U=max speed rpm
19000
B
14
B1
3
C (DIN 912-12.9)
4X M05
D1/D2
10
D1/D2 max.
24
D1/D2 min.
12
D3
29
D5
12,5
D6
27
L1
30
L2
18
L3
25

Description

Material
Spider polyurethane hardness Shore 98A.
Hub aluminium.
Conical ring carbon steel.
Note
This coupling series is particularly suitable for use in high speed main spindle or drill spindle drives. Before the plug-in assembly, both clamping ring hubs must be fastened to the shafts with the correct tightening torque. Lightly oil the spider to ease assembly.
Assembly
The shaft to hub bore fit should be a transition fit. The play should be max. 0.02 mm. i.e:
shaft Ø 25 k6
bore Ø 25 G6.
Bores smaller than D1/D2 min. are possible, however an optimal transfer of the nominal torque is no longer guaranteed.
On request
Hub bores D1 and D2 with separate tolerance class or range.
Drawing reference
1) elastomer spider
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