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  4. Couplings
  5. Spiders, play-free for elastomer dog couplings
    6. 23023-90-0780
Designation
Coupling spider
Size
7
Version 1
free of play
Main material
polyurethane
Main colour
blue
B
6
Coupling spider hardness
80 Shore A
D max.
3
D4
14
Max. torque Nm
1.4
No. of teeth
4
Nom. torque Nm
0.7
Spring stiffness radial (N/mm)
114
Torsional stiffness static (Nm/wheel)
8.6
Torsional stiffness dynamic Nm/wheel
26
max. angular offset (°)
1,1
max. shaft offset axial (mm)
+0,6 / -0,3
max. shaft offset radial (mm)
0,15

Description

Material
Polyurethane.
Version
Coupling spider blue Shore 80A.
Coupling spider yellow Shore 92A.
Coupling spider red Shore 98A.
Note
The spiders are the compensating elements in elastomer dog couplings. As the main component of a coupling, they determine its properties.

The spiders are available in various hardness grades. As the hardness of the coupling spider increases, the torque and stiffness transmitted increases, and as the hardness decreases, the displacement capacity and cushioning increases.

Pre-tensioning of the spiders in the coupling hubs make this variant play-free.
Temperature range
Blue Shore 80A: -50 °C to +80 °C. Briefly -60 °C to +120 °C.
Yellow Shore 92A: -30 °C to +90 °C. Briefly -50 °C to +120 °C.
Red Shore 98A: -30 °C to +90 °C. Briefly -40 °C to +120 °C.
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