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BK 090-28 20

Bush BK090 28x20 bronze
BK090-2820

The product image may differ

BK090-2820
BK090-2820 BK090-2820
d
28 mm
D
31 mm
L
20 mm
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Article

BK 090-10 10 BK 090-14 15 BK 090-15 15 BK 090-16 20 BK 090-16 25 BK 090-18 15 BK 090-20 15 BK 090-20 20 BK 090-20 25 BK 090-20 30 BK 090-22 20 BK 090-22 25 BK 090-22 30 BK 090-25 15 BK 090-25 20 BK 090-25 25 BK 090-25 30 BK 090-28 20 BK 090-28 25 BK 090-28 30 BK 090-30 20 BK 090-30 25 BK 090-30 30 BK 090-30 40 BK 090-32 20 BK 090-32 30 BK 090-32 40 BK 090-35 15 BK 090-35 20 BK 090-35 30 BK 090-35 35 BK 090-35 40 BK 090-35 50 BK 090-40 20 BK 090-40 25 BK 090-40 30 BK 090-40 40 BK 090-40 50 BK 090-45 20 BK 090-45 25 BK 090-45 30 BK 090-45 40 BK 090-45 50 BK 090-45 60 BK 090-50 30 BK 090-50 40 BK 090-50 50 BK 090-50 60 BK 090-55 20 BK 090-55 40 BK 090-55 50 BK 090-55 60 BK 090-60 30 BK 090-60 35 BK 090-60 40 BK 090-60 50 BK 090-60 60 BK 090-65 40 BK 090-65 50 BK 090-65 60 BK 090-70 40 BK 090-70 50 BK 090-70 60 BK 090-70 70 BK 090-70 80 BK 090-75 40 BK 090-75 60 BK 090-75 80 BK 090-80 40 BK 090-80 50 BK 090-80 60 BK 090-80 80 BK 090-85 40 BK 090-85 80 BK 090-90 50 BK 090-90 60 BK 090-90 90 BK 090-100 50 BK 090-100 60 BK 090-110 60 BK 090-120 50 BK 090-130 60 BK 090-130 100 BK 090-140 100 BK 090-150 60 BK 090-180 60
Product details for

BK 090-28 20

d
28 mm
D
31 mm
L
20 mm

Characteristics

pv
  • for grease lubrication: 2.8 N/mm² x m/s 
  • for oil lubrication: 10 N/mm² x m/s 
Permissible load
  • static: 140 N/mm² 
  • rotation, oscillation: 70 N/mm² 
Max. sliding velocity
  • 1 m/s
Friction coefficient
  • lubricated: 0.05 to 0.15 
Thermal expansion coefficient
  • 11 x 10-6 K-1 
Coefficient of thermal conductivity
  • 60 W/(m·K)
Surface pressure
  • 140 (≤ N/mm²) 
Application
  • hydraulic systems 
Construction type
  • multi-lubrication plain bearing in rolled bronze 
Construction type addition
  • the bushes are suitable for rotational and oscillating movements 
Material
  • CuSn8 bronze 
Standard
  • ISO 3547 
  • DIN 1494 
Temp. max.
  • 150 Â°C
Temp. min.
  • -50 Â°C
Customs tariff number
  • 84833080 
All characteristics

Product description

Notes
An initial lubrication with grease is recommended and continual lubrication significantly increases the service life of the plain bearing.
To be observed: peak to valley height of shaft Ra < 0.8 µm.
Observed hardness of shaft > 400 HB
Description
Maintenance-free operation.
Relubricable.
Suitable for dirty conditions.
Shock and vibration resistant.
High permitted load.
Good friction characteristics.
No water absorption.
Low backlash during operation.
Extremely space-saving.

Product variants

86 Results
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Show dimensional drawing
Identifier
d (mm)
D (mm)
L (mm)
Details / items
BK 090-10 10
10 mm
12 mm
10 mm
Learn more
BK 090-14 15
14 mm
16 mm
15 mm
Learn more
BK 090-15 15
15 mm
17 mm
15 mm
Learn more
BK 090-16 20
16 mm
18 mm
20 mm
Learn more
BK 090-16 25
16 mm
18 mm
25 mm
Learn more
BK 090-18 15
18 mm
21 mm
15 mm
Learn more
BK 090-20 15
20 mm
23 mm
15 mm
Learn more
BK 090-20 20
20 mm
23 mm
20 mm
Learn more
BK 090-20 25
20 mm
23 mm
25 mm
Learn more
BK 090-20 30
20 mm
23 mm
30 mm
Learn more

Shows 10 of 86

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D (mm)
L (mm)