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BK-1- 20 215 F

Bush BK-1-F 20x21.5 metal/PTFE
Detalji o proizvodu za

BK-1- 20 215 F

d
20 mm
D
23 mm
L
21,5 mm
F
31 mm
e
1,5 mm
f1
0,8 mm
f2
0,4 mm
Sva svojstva

Svojstva

pv
  • continuous operation: 1.8 N/mm² x m/s 
  • short-term operation: 3.6 N/mm² x m/s 
Permissible load
  • static: 250 N/mm² 
  • low slide speed: 140 N/mm² 
  • rotation, oscillation: 55 N/mm² 
Sliding velocity
  • dry run = 2 m/s 
  • hydro-dynamic operation: > 2 m/s 
Thermal expansion coefficient
  • parallel to ring surface: 11 x 10-6 K-1 
  • perpendicular to ring surface: 30 x 10-6 K-1 
Coefficient of thermal conductivity
  • 40 W/(m·K)
Surface pressure
  • 250 (≤ N/mm²) 
Application
  • BK-1 bushings are suitable for transmission, rotary and oscillatory motions. 
  • rod guide for pneumatic and hydraulic cylinders 
  • attachment lugs of pneumatic and hydraulic cylinders 
  • Conveyor systems, textile machinery, automobiles ... 
Construction type
  • maintenance-free PTFE coated plain bearing 
Material
  • steel back onto which a porous bronze layer is sintered 
  • a PTFE lead mixture is subsequently rolled into the bronze layer 
Standard
  • ISO 3547 
  • DIN 1494 
Surface
  • zinc or copper plated 
Temp. max.
  • 270 °C
Temp. min.
  • -200 °C
Customs tariff number
  • 84833080 
Sva svojstva

Opis proizvoda

Napomene
Dubina hrapavosti vratila koju treba poštivati Ra < 0,4 µm.
Tvrdoća vratila koju treba poštivati > 350 HB
Opis
Prikladne za suhi hod i ne treba ih održavati.
Apsorpcija šumova i oscilacija.
Moguć je hidrodinamički pogon.
Visoko dopušteno opterećenje.
Vrlo dobra kemijska otpornost.
Dobre karakteristike habanja.
Nema "stick-slip" efekta.
Široko temperaturno područje.
Visoka klizna brzina.
Nema prihvata vode.
Mali zazor kod pogona.
Vrhunski štedi prozor.

Product variants

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