EN logo ZKL Group

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

Single row cylindrical roller bearings

NJ405

b1
min. 1.5
25 d2

1
73 32 dc



Správné označení: NJ405

Radiální vůle: C
Přesnost: P
Stabilizace: S




Typ
Type
NJ405
Konstrukce
Design
Single row cylindrical roller bearings
Další klece
Designation příložného kroužku
Hlavní rozměry
Dimensions
d D B rs (min) r1s (min) F E d2 (max) b b1 s1)
mm
25 80 21 1.5 1.5 F E 1.4
Výkonové parametry
Performance parameters
Cr Cor Pu MFO-pl. maz. MFO - olej
kN min-1
43.800 34.100 4.160 8400.0 10000
Hmotnost
Mass
Bearing [ kg ] př.k. [ kg ]
0.570
Připojovací rozměry
Mounting Dimensions
d da (min) da (max) db (min) dc (min) dd (max) Da (max) Db (min) ra (max) rb (max)
32 38 39 40 0 73 0 1 1

 

 

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


Copyright © 2012 ZKL, a.s.