SIFT BEARING STORE CATALOG

33020TimkenTapered Roller

33020 is a Timken tapered roller bearing, bore 100 mm, O.D. 150 mm, width 39 mm, dynamic rating 251 kN. Dimensions, drawing, interchanges and price.

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Bore d100mm
Outside dia. D150mm
Width B39mm
Dynamic Cr251kN
Static C0r393kN
Weight2.36kg
Cr / C0r0.64
Mean dia. dm125mm

Original catalogue drawing - Timken TRB Catalog, page 418

33020 Timken Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D150 mmBore d100 mmWidth B39 mmCup width C32.5 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter1003.937
DOutside diameter1505.9055
BInner-ring / bearing width391.5354
TOverall assembly width391.5354
CCup / outer-ring width32.51.2795
rChamfer (min)1.50.0591

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)100.000
Bore d (in)3.9370
Outside dia. D (mm)150.000
Outside dia. D (in)5.9055
Width B (mm)39.000
Overall width T (mm)39.000
Overall width T (in)1.5354
Cup width C (mm)32.500

Load ratings & speeds

Basic dynamic load rating Cr (lbs)56300
Basic static load rating Cor (lbs)88300
Basic dynamic load rating Cr (N)251000
Basic static load rating C0r (N)393000
Dynamic rating C1 (N, ISO)251000
Dynamic rating C1 (lbf, ISO)56300
Radial rating C90 (N)65000
Radial rating C90 (lbf)14600
Thrust rating Ca90 (N)31900
Thrust rating Ca90 (lbf)7180
Static rating C0 (N)393000
Static rating C0 (lbf)88300
Factor e0.29
Factor Y2.09
Factor K2.03
Geometry factor G1206.3
Geometry factor G265.1
Geometry factor Cg0.0938
Effective load centre a (mm)-9.4

Weight

Weight (kg)2.36

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)2.0
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)107.0
Shaft shoulder db (mm)111.0
Housing shoulder Da (mm)144.0
Housing shoulder Db (mm)139.0
Cage projection Aa (mm)1.9
Cage projection Ab (mm)2.4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
462,7501023,386
641,83339213,083
831,3751,02434,133
1025,1002,15471,814
1516,7338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 251,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandTimken
Source catalogueTimken Tapered Roller Bearing Catalog (2016)
Catalogue pagep.418 (dimensions)
Series typeTS

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
33020FAGTapered Roller10015039224 kN2.42
HR33020JNSKTapered Roller1001503952,800 lbs2.381

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
X33020/Y33020TimkenTapered Roller10015039--

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30220TimkenTapered Roller10018034301 kN3.76
30320TimkenTapered Roller10021547423 kN8.37
31320XTimkenTapered Roller10021551416 kN8.76
32020XTimkenTapered Roller10015032195 kN1.89
32220TimkenTapered Roller10018046368 kN4.92
32320TimkenTapered Roller10021573586 kN12.92
33220TimkenTapered Roller10018063488 kN6.59
52394X/52618TimkenTapered Roller100157.163.5-2.47

Request a quotation for 33020

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