BK-2 Sliding bush BK-2
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BK-2

Sliding bush BK-2

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MAS_BK-2
MAS_BK-2
Design
multi-lubrication, POM coated friction bearing 
Construction type
with lubrication pockets 
pv
Operation with lubrication: 5 N/mm² x m/s 
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BK-2-1020 BK-2-1525 BK-2-2015 BK-2-2020 BK-2-2025 BK-2-2030 BK-2-2225 BK-2-2230 BK-2-2415 BK-2-2425 BK-2-2515 BK-2-2520 BK-2-2525 BK-2-2530 BK-2-2825 BK-2-2830 BK-2-3020 BK-2-3030 BK-2-3040 BK-2-3225 BK-2-3230 BK-2-3240 BK-2-3520 BK-2-3530 BK-2-3535 BK-2-3540 BK-2-3550 BK-2-4020 BK-2-4030 BK-2-4040 BK-2-4050 BK-2-4530 BK-2-4540 BK-2-4545 BK-2-4550 BK-2-5030 BK-2-5035 BK-2-5040 BK-2-5050 BK-2-5060 BK-2-5540 BK-2-5560 BK-2-6030 BK-2-6040 BK-2-6050 BK-2-6060 BK-2-6070 BK-2-6560 BK-2-7030 BK-2-7040 BK-2-7050 BK-2-7070 BK-2-7080 BK-2-7540 BK-2-8040 BK-2-8050 BK-2-8060 BK-2-8080 BK-2-8560 BK-2-9040 BK-2-9060 BK-2-9080 BK-2-9090 BK-2-9560 BK-2-10060 BK-2-11060 BK-2-12060 BK-2-12560 BK-2-13060 BK-2-13080

Characteristics

Design
  • multi-lubrication, POM coated friction bearing 
Construction type
  • with lubrication pockets 
pv
  • Operation with lubrication: 5 N/mm² x m/s 
Permissible load
  • static: 140 N/mm² 
  • Rotation, oscillation: 70 N/mm² 
Sliding rate
  • Dry running = 2 m/s 
  • hydrodynamic operation: 5 m/s 
Friction coefficient
  • dry: 0.15 to 0.25 
  • lubricated: 0.05 to 0.15 
Thermal expansion coefficient
  • parallel to ring surface: 11 x 10-6 K-1 
  • perpendicular to ring surface: 48 x 10-6 K-1 
Coefficient of thermal conductivity
  • 32 W/(m·K)
Temp. min.
  • -20 Â°C
Temp. max.
  • 100 Â°C
Surface pressure
  • 140 (≤ N/mm²) 
Material
  • Steel back onto which a porous bronze layer is sintered 
  • the POM acetal resin is subsequently rolled into the bronze layer 
Surface
  • zinc or copper plated 
Application
  • attachment lugs of pneumatic and hydraulic cylinders 
  • conveyor-belt systems, textile machinery, automobiles, ... 
  • BK-2 bushings are suitable for rotational and oscillating movements. 
Standard
  • ISO 3547 
  • DIN 1494 
All characteristics

Product description

Notes
An initial lubrication with grease is recommended and continual lubrication significantly increases the service life of the friction bearing.
Peak to valley height of shaft to be observed Ra <; 0.8 Îĵm.
Hardness of shaft to be observed 200 <; HB <; 600.
Description
Maintenance-free operation.
Noise and frequency absorption.
Multi-lubricationable.
hydrodynamic operation possible
High permitted load.
Good friction characteristics.
High slide speed.
No water absorption.
To be used when oil film formation difficult.
low play during operation.
Extremely space-saving.

Product variants

70 Results
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Identifier
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d (mm)
D (mm)
f2 (mm)
f1 (mm)
g (mm)
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d (mm)
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f2 (mm)
f1 (mm)
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f1 (mm)
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Details / items
BK-2- 10 20
10  mm
12  mm
0.3  mm
0.5  mm
Learn more
BK-2- 15 25
15  mm
17  mm
0.3  mm
0.5  mm
Learn more
BK-2- 20 15
20  mm
23  mm
0.4  mm
0.8  mm
Learn more
BK-2- 20 20
20  mm
23  mm
0.4  mm
0.8  mm
Learn more
BK-2- 20 25
20  mm
23  mm
0.4  mm
0.8  mm
Learn more
BK-2- 20 30
20  mm
23  mm
0.4  mm
0.8  mm
Learn more
BK-2- 22 25
22  mm
25  mm
0.4  mm
0.8  mm
Learn more
BK-2- 22 30
22  mm
25  mm
0.4  mm
0.8  mm
Learn more
BK-2- 24 15
24  mm
27  mm
0.4  mm
0.8  mm
Learn more
BK-2- 24 25
24  mm
27  mm
0.4  mm
0.8  mm
Learn more
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