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Elastomer Dog Coupling
with conical hub and shaft collar
aluminium
- Suitable for high speeds
- Vibration absorbing
- Free of play through preload of the coupling star
- Simple assembly (push-fit system)
Sales unit
£251.36
plus sales tax
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Item
Elastomer Dog Coupling
Size
320
Version 1
with conical hub and shaft collar
Main
material
aluminium
Component
material
polyurethane
D1/D2=fastening hole
18
D4=Outside diameter
80
L=Length
114
B
18
B1
4
C
(DIN 912-12.9)
4x M8
D1/D2
max.
40
D1/D2
min.
20
D3
46
D5
16,5
D6
38
L1
45
L2
24
L3
40
Max.
axial shaft
displacement ±
1
Max.
lateral shaft
displacement
0,12
Moment of
inertia
(10⁻³ kgm²)
2
Nominal
torque
Nm
320
Radial spring
stiffness
N/mm
4500
RoHS
true
Static resistance
to torsion
Nm/arcmin
2
Tightening
torque of
screws Nm
30
UNSPSC Code
23153403
max.
rpm
12000
Description
Material
Spider polyurethane hardness Shore 98A.
Hub aluminium.
Conical ring carbon steel.
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.
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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