Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Rodamientos
Samuel Snchez Caballero
Universitat Politcnica de Valncia
18 de marzo de 2015
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Componentes
ME11-01a/04.00
Elemento de rodadura
Elemento derodadura
Pista exterior
Pista inferior
Pista interior
Pista superior
Jaula
Jaula
source: Niemann, Maschinenelemente
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Componentes
Ball
Taper Roller Sphericall Roller (Asym.)
Cylindrical Roller Needle Roller
Sphericall Roller (Sym.)
ME11-02/04.00
source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Componentes
source: FAG
ME11-03a/04.00
Lug cagefor deep grooveball bearings
rivet cagefor deep grooveball bearings
Main functions of the cageSeparation of rolling elements to keep friction and heat development at a minimum.Keeping rolling elements at equal distances for uniform load distribution.Retaining rolling elements in separable bearings and in bearings which are swiveled out.Guiding rolling elements in the unloaded zone of the bearing.
Pressed Cages
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Componentes
Riveted machined cagefor deep groove ballbearings
Brass window-type cagefor angular contact ballbearings
Machined brass cagewith integral cross-piece rivets
for cylindrical roller bearings.
Solid Cages -- Machined brass cages
source: FAG
ME11-03b/04.00
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Componentes
window-type cagefor single-row angular contactball bearings
window-type cagefor cylindrical roller bearings
Solid Cages -- Moulded cages made of glass-fibre reinforced polyamide
source: FAG
ME11-03c/04.00
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Proceso de diseo
Choice of the bearing type
Choice of the bearing arrangement
Determination of the bearing size
Definition of the bearing data
Structure of the surrounding parts
Lubrication and maintenance
Mounting and dismounting
ME11-05b/04.00
source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Prestaciones
Thrust bearings
Load carrying capacity
low medium high
low medium highnoneaxial
Alignment
none very low low medium
Load carrying capacity
low mediumnoneradial
Speed suitability
none very low low medium
Alignment
low medium highnone
Speed suitabilitylow medium high
low medium high
Radial bearings
Ball bearings
Ball bearings
Roller bearings
Roller bearings
axial
radial
ME11-04a/03.04
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Tipos
ME11-04b/03.04
Deep groove ball bearing, single row Angular contact ball bearing, single row
Angular contact ball bearing, double row Four-point bearing source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Tipos
Self-aligning ball bearing Thrust ball bearing, single direction
Thrust ball bearing, double direction Angular contact thrust ball bearing, double direction
ME11-04c/03.04
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Tipos
Cylindrical roller bearing, single row Cylindrical roller bearing, double row
Cylindrical roller bearing, double row, full complementTapered roller
bearing
ME11-04d/03.04
source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Tipos
Barrel roller bearing Spherical roller bearing
Cylindrical roller thrust bearing Spherical roller thrust bearing
ME11-04e/03.04
source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Capacidad de carga
Source: SKF
ME11-06/04.00
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Velocidad
n [rpm]
ME11-07/04.00
source: SKF
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Tabla comparativa
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Designacin Normalizacin
La tabla muestra la denominacin de los rodamientos, su identificacin
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Designacin
ME11-09d/04.00
ISO
Source: FAG PC-Catalogue
Cylindrical roller bearingFlanges on outer ringWidth series 2Diameter series 314x5 = 70mm bore dia.
NU2314
Spherical roller bearingWidth series 3Diameter series 0600mm bore dia.
230/600
Spherical thrust roller bearingWidth series 9Diameter series 412x5 = 60mm bore dia.
29412
Angular contact ball bearing, single rowWidth series 0Diameter series 305x5 = 25mm bore dia.
7305
Tapered roller bearingWidth series 0Diameter series 225x5 = 125mm bore dia.
30225
Deep groove ball bearingWidth series 0Diameter series 202 = 15mm bore(= 8, see
Dimensioning
Shaft
Shaft
Dimension
Dimension
Mass Load rating - Factor
Load rating - Factor
Drawing
Limiting
Limiting
Reference
Reference
Code
Code
Abutment dimension
Abutment dimension
~ speed
speed
speed
speed
dyn. stat.
d D B C T 1sr , r 2s r 3s , r 4s a J C e Y C 0 Y 0 Bearing D D D D D a a r g1,2 r g3,4min min ~ ~ DIN max
1
min2
min3
max3
min4
min1
min2
max maxmm kg kN kN min
-1FAG ISO 355 mm
15 15 35 11 10 11.75 0.6 0.6 8 26.4 0.054 15 0.35 1.73 14.3 0.95 24000 14000 30202 20 19 29 29 32 2 1.5 0.6 0.615 42 13 11 14.25 1 1 10 28.1 0.096 23.2 0.29 2.11 20.8 1.16 20000 13000 30302A T2FB015 22 21 36 36 38 2 3 1 1
17 17 40 12 11 13.25 1 1 10 29.1 0.082 19.3 0.35 1.74 19 0.96 20000 13000 30203A T2DB017 23 23 34 34 37 2 2 1 1
17 40 16 14 17.25 1 1 11 28.7 0.105 29 0.31 1.92 30 1.06 20000 11000 32203A T2DD017 22 23 34 34 37 3 3 1 117 47 14 12 15.25 1 1 11 31.8 0.129 28 0.29 2.11 25 1.16 18000 11000 30303A T2FB017 25 23 40 41 42 2 3 1 117 47 19 16 20.25 1 1 12 31.5 0.182 36.5 0.29 2.11 36.5 1.16 18000 11000 32303A T2FD017 24 23 39 41 43 3 4 1 1
20 20 42 15 12 15 0.6 0.6 10 33 0.108 24 0.37 1.6 29 0.88 18000 9500 32004X T3CC020 25 25 36 37 39 3 3 0.6 0.620 47 14 12 15.25 1 1 11 34.5 0.126 27.5 0.35 1.74 27.5 0.96 17000 11000 30204A T2DB020 27 26 40 41 43 2 3 1 1
20 52 15 11 16.25 1.5 1.5 16 37.8 0.174 31 0.73 0.82 30.5 0.45 14000 9500 31304 27 27 40 45 48 3 5 1.5 1.520 52 15 13 16.25 1.5 1.5 11 36.1 0.188 34.5 0.3 2 33.5 1.1 15000 10000 30304A T2FB020 28 27 44 45 47 2 3 1.5 1.520 52 21 18 22.25 1.5 1.5 14 35.3 0.241 46.5 0.3 2 48 1.1 15000 9500 32304A T2FD020 27 27 43 45 47 3 4 1.5 1.5
ME11-09e/03.04
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Clculo dinmico
L =10h [hr]( )CP10
60.np6
L =10 [10 rev.]( )CPp 6
L10 Duracin en mill. de rev. L10h Duracin en horas
Capacidad de carga
Velocidad de giro (rpm)
Carga equivalente= X . F + Y . Fr a
Exponente (Hertz)
= 3= 10/3
Bolas
Rodillos
source: SKF/FAG
ISO
ME11-10a/04.00
P C
n
p
X:Y:F :F :
Factor radialFactor axialCarga radialCarga axial
ra
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Factores de carga
Type of Bearing e X Y X Y X Y X Y
Deep groove ball bearingF / Ca 0 = 0.025 0.22 2.0
0.240.270.310.370.441.14= 40= 32 0.86
1.5tan1.5tan1.5tan
0.56
0.35
0.4
1.00
1.00
1
0.62
0.670.65
1.00
11
1.81.61.41.21.0
2.0
0.56 1.001.81.61.41.21.0
0.57
0.6/e
0 0
0
0
1.17
1/e0.975/e
0.73
0.675/e0.63/e
= 0.04= 0.07= 0.13= 0.25= 0.5
Self-aligning ball bearing
Angular contactball bearing
Spherical roller bearingTaper roller bearing
F / F > ea r F / F > ea rF / F ea r F / F ea r
Single Row Double Row
source: SKF/FAG
ME11-10c/04.00
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Clculo dinmico
L = ana 1 2 3 10. a . a . L
L = ana 1 23 10. a . L
Lna
a1
a2
a3
a23
Duracin para tasa de fallo n
ISO
Factor ajuste confiab. (90%)
Factor de ajuste por material
Factor ajuste por cond. funcion.
Factor de ajuste combinado
Tasa de fallo [%] 10
L10a L5a L4a L3a L2a L1a
1.00 0.62 0.53 0.44 0.33 0.21
5 4 3 2 1
Duracin Lna
Factor a1
source: SKF/FAG
ME11-10b/04.00
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
locating-floating bearing arrangement
Fa1
Fa1
Fr1
Fr1
Fr2
Fr2
F
F
Supporting bearing arrangement:
adjusted bearing or floating bearing arrangement
ME11-11a/04.00
Source: Franke, Maschinenelemente
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
--
libre
libre
libre
libre
fijo
fijo
fijo
fijo
ME11-11b/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
--
ME11-11c/04.00
Source: FAG
floating
floating
floating
floating
locating
locating
locating
locating
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
s s s
ME11-11d/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
ME11-11e/04.00
Source: FAG
:
X-Arrangement (Face to Face) O-Arrangement (Back to Back)
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
ME11-11f/04.00
Source: FAG
X-Arrangement(Face to Face) O-Arrangement (Back to Back)
O-Arrangement (Back to Back)O-Arrangement (Back to Back)
L
L
:
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre
ME11-11g/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre Montaje
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre Montaje
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Conguracin jo-libre Montaje
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Ejemplo: Motor elctrico
ME11-11h/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Ejemplo: Eje sierra
ME11-11i/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Ejemplo: Diferencial
ME11-11j/04.00
Source: FAG
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Transmisin de la carga en rodamientos cnicos y de
contacto angular
FrA
LA
LB
L ab
FR
FrB
RB
rA FbaLbL
F
RA
rB FbaLaL
F
ME11-10d/04.01
Caractersticas Clculo Conguracin Retencin Tolerancias Montaje-desmontaje Lubricacin
Transmisin de la carga en rodamientos cnicos
Bearing A Bearing BAxial Load for equivalent dynamic load
Load Condition
FY
rA
A
FY
rA
A
F2 Y
rA
A
FrA
Ka
FrB
F2 Y
rA
A
F2 Y
rB
B
F2 Y
rA
A
F2 Y
rA
A
F2 Y
rB
B
FY
rA
A
FY
rA
A
FY
rB
B
FY
rB
B
FY
rB
B
FY
rB
B