Shrink disc steel 23380-3872
- 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-centering
Sales unit
$68.66 / Piece
plus sales tax
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Designation
Shrink disc
style
A
Main
material
steel
D1=Outside diameter
72
D=internal diameter
38
B
30
DW
29/30/31
L
26
L1
21
L2
10,5
Max. axial force F kN
with
tightening torque MS
62/65/63
Max. torque M Nm
with
tightening torque MS
700/770/780
No. of
screws
6 x M6
Surface pressure
on hub P
N/mm²
295
Tightening torque
MS
Nm
12
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
not yet identified
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes
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-centering
The version 23380-01-4072 has high tensile ISO 4762 screws.
- for extremely high torques
- no axial shaft/hub offset when assembling
- self-centering
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.
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.
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