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Single row tapered roller bearings d = 15 - 140 mm

31305A

schema

 

Dimensions Basic load rating Fatique load limit
d2 D B C T rs (min) r1s (min) r2s (min) a Dynamic (Ca) Static (Coa) Pu
mm kN kN
25 62 17 13 18.25 1.5 1.5 0.6 20 36.2 39.1 4.770

 

Limiting speed for lubrication with Bearing designation Abutment and fillet dimensions Weight Factors
Grease Oil STN ISO d da (max) db (min) Da (max) Da (min) Db (min) aa (min) ab (min) ra (max) e Y Y0
min-1   mm kg  
6 700 8 900 31305A T7FB025 25 33 32 46 55 59 2 5 1 0.271 0.830 0.700 0.400

 

Calculations

vzorec C = kN  
P = kN  
L10 = 106ot
vzorec Fa
Fr
  n=
 
L10h = h
  D=
 
L10km = 106km
vzorec   a23=
  a1=
Lna = 106ot
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