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SKF 31308 tapered roller bearings

  • SKF 31308 tapered roller bearings

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Description

Also known as : 31308,30318-A

  • Inside Diameter: 40 mm
  • Outside Diameter: 90 mm
  • Width: 25.25 mm
  • Basic dynamic load rating: 91.1 kN
  • Basic static load rating: 81.5 kN

SKF 31308 Bearing details

model 31308
Dimension series 7FB
d 40 mm
D 90 mm
T 25.25 mm
d1 ≈ 67.15 mm
B 23 mm
C 17 mm
r1,2 min. 2 mm
r3,4 min. 1.5 mm
a 28.252 mm
da max. 51 mm
db min. 50 mm
Da min. 71 mm
Da max. 82.5 mm
Db min. 86 mm
Ca min. 3 mm
Cb min. 8 mm
ra max. 2 mm
rb max. 1.5 mm
Calculation data
C 91.1 kN, Basic dynamic load rating
C0 81.5 kN, Basic static load rating
Pu 9.5 kN, Fatigue load limit
Reference speed 5600 r/min
Limiting speed 7500 r/min
e 0.83, Calculation factor
Y 0.72, Calculation factor
Y0 0.4, Calculation factor
Mass 0.72 kg

 

 







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