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23380

Shrink Disc

steel

  • To connect a hollow shaft to a shaft
  • Suitable for static, dynamic and shock loads
  • For very high torques
  • No shift of axial shaft/hub during assembly
  • Self-centring
Item number:
23380-4880

£27.97

plus sales tax
Gross price:  £33.28
Item number:
23380-4880
Designation
Shrink Disc
Form
A
Body material
steel
D1=Outside diameter
80
D=Internal diameter
48
F=Transmissible axial force kN
65/72/78
M=Transmissible torque NM
900/1050/1200
Ms=Tightening torque NM
12
P=Surface pressure on hub
260
n=Number of clamping screws
7XM06
B
30
DW
363840
L
26
L1
22
L2
11

Description

Material
Steel.
Version
Bright.
Note
Shrink disc to connect a hollow hub to a shaft. They are mounted on the OD of the hub and generate pressure on the hub wall by reducing the ID with wedge-formed rings, creating a press fit between the hub and shaft. They are suitable for static, dynamic and shock loads.

- for extremely high torques
- no axial shaft/hub offset when assembling
- self-centring

The version 23380-01-4072 has high tensile ISO 4762 screws.
Assembly
Remove existing transportation locks. Clean and lightly oil shaft, internal and external hub diameters. Do not use MoS2 or grease. Slide shrink disc onto hub. Then slide unit (shrink disc/hub) onto shaft and position correctly. Gently tighten clamping screws one after the other by hand. Then use a torque wrench to tighten the clamping screws crosswise in several increments to the defined tightening torque MS.
1st increment approx. 33% MS
2nd increment approx. 66% MS
3rd increment 100% MS

Dismantling: Gradually loosen all screws one after the other but do not fully remove from the thread. The shrinking disc usually loosens itself.