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The history is cornerstone of the
present time as well as challenge to the future.

Double direction thrust ball bearings

52211**

Bearing in the new standard NEW FORCE

 

90
45
min. 0.6 10 45
min. 1
57
90

69
1
0.6
55



Správné označení: 52211**

Radiální vůle: C
Přesnost: P
Stabilizace: S




Typ
Type
52211**
Konstrukce
Design
Double direction thrust ball bearings
Hlavní rozměry
Dimensions
d2 D d3 D1 H B rs (min) r1s (min)
mm
45 90 90 57 45 10 1 0.6
Výkonové parametry
Performance parameters
Cr Cor Pu MFO-pl. maz. MFO - olej
kN min-1
7.230 2 500 3 300
Hmotnost
Mass
- [ kg ]
1.12
Připojovací rozměry
Mounting Dimensions
d da (max Da (max) ra (max) rb (max)
55 69 1 0.6
Minimum axial load factor 0.11

 

 

Calculations

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

Bearing frequencies

rotational speed of the inner ring

ni [RPM] 

fi [Hz] 

rotational frequency of the inner ring

fc [Hz] 

rotational frequency of the rolling element and cage assembly

fr [Hz] 

rotational frequency of a rolling element about its own axis

fip [Hz] 

over-rolling frequency of one point on the inner ring

fep [Hz] 

over-rolling frequency of one point on the outer ring

frp [Hz] 

over-rolling frequency of one point on rolling element


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