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  2. Systems and components for machine and plant construction
  3. 23000
  4. Plain bearings
  5. Guide bushes with collar bronze, maintenance-free
  6. Guide bushes with collar bronze, maintenance-free, Form B
    7. 23681-05-045055040
Designation
Guide bush
Version 1
with collar
Version 2
maintenance-free
Form
B
Form definition
Glide direction axial and radi
Main material
bronze
Component material
graphite
D1=Outside diameter
55
D=internal diameter
45
L=Length
40
D2
70
L1
5
L2
4
R
2
UNSPSC Code
31161519
~ CONFLICT MINERALS 3TG status
3TG contained
~ CONFLICT MINERALS procurement
smelter not yet identified
~ CP65 substance 1 cancer & reproductive toxicity
lead and lead compounds
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
yes
~ REACH SVHC-free?
no
~ REACh SVHC 1 name > threshold
lead
~ RoHS conformity
yes, with exemption
~ RoHS exemption/s
III/6c
~ TSCA 6(H) conformity
yes

Beskrivning

Material
Bronze with graphite inserts.
Version
Self-lubricating.
Hardness 190-220 HBW.
Note
The guide bushes can be used radially and axially.
The slide elements are maintenance-free and wear-resistant.
The graphite inserts provide lifetime lubrication.
Technical Data
Material properties:
Base alloys: CuZn25Al5Mn4Fe3-C.

Density: 8.2 kg/dm³.
Flexural fatigue strength: +/- 150 MPa.
Modulus of elasticity: 120,000 N/mm².
Coefficient of friction: 0.05 - 0.12.
Max. speed: 0.5 m/s.
Thermal conductivity: 50 W/(mK).
Coefficient of thermal expansion: 18x10-6 K-1.
Electrically conductive: 7-8 m/(Ω·m-1).
Solid lubricant content: 20-25%.
Static surface pressure: 50 N/mm².
Dynamic surface pressure: 35 N/mm².
Temperature range
Up to 230 °C.
Tolerances
The bore for the bearings should correspond to ISO tolerance H7.

The tolerance h6 to h7 is recommended for the shaft.
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