SIFT BEARING STORE CATALOG

525X/522TimkenTapered Roller

525X/522 is a Timken tapered roller bearing, bore 38.1 mm, O.D. 101.6 mm, width 36.07 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d38.1mm
Outside dia. D101.6mm
Width B36.07mm
Dynamic Cr165kN
Static C0r191kN
Weight1.49kg
Cr / C0r0.86
Mean dia. dm69.8mm

Original catalogue drawing - Timken TRB Catalog, page 150

525X/522 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. D101.6 mmBore d38.1 mmWidth B36.07 mmCup width C26.99 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 diameter38.11.5
DOutside diameter101.64
BInner-ring / bearing width36.0681.42
TOverall assembly width34.9251.375
CCup / outer-ring width26.9881.0625
rChamfer (min)3.30.1299

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)38.100
Bore d (in)1.5000
Outside dia. D (mm)101.600
Outside dia. D (in)4.0000
Width B (mm)36.068
Overall width T (mm)34.925
Overall width T (in)1.3750
Cup width C (mm)26.988

Load ratings & speeds

Basic dynamic load rating Cr (lbs)37000
Basic static load rating Cor (lbs)43000
Basic dynamic load rating Cr (N)165000
Basic static load rating C0r (N)191000
Dynamic rating C1 (N, ISO)165000
Dynamic rating C1 (lbf, ISO)37000
Radial rating C90 (N)42700
Radial rating C90 (lbf)9600
Thrust rating Ca90 (N)20800
Thrust rating Ca90 (lbf)4690
Static rating C0 (N)191000
Static rating C0 (lbf)43000
Factor e0.29
Factor Y2.10
Factor K2.05
Geometry factor G157.9
Geometry factor G213.4
Geometry factor Cg0.0894
Effective load centre a (mm)-12.7

Weight

Weight (kg)1.49

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)0.8
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)48.0
Shaft shoulder db (mm)49.0
Housing shoulder Da (mm)95.0
Housing shoulder Db (mm)89.0
Cage projection Aa (mm)2.7
Cage projection Ab (mm)1.8

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
441,2501023,386
627,50039213,083
820,6251,02434,133
1016,5002,15471,814
1511,0008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 165,000 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.150 (dimensions)
Series typeTS

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
525/522TimkenTapered Roller38.1101.636.07165 kN1.48

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
13685/13620TimkenTapered Roller38.169.0119.0567.2 kN0.28
13685/13621TimkenTapered Roller38.169.0119.0567.2 kN0.28
13685/13621ATimkenTapered Roller38.169.0119.0567.2 kN0.27
13685/13621DTimkenTapered Roller38.169.0146.03117 kN0.66
13685/13624TimkenTapered Roller38.169.9719.0567.2 kN0.33
13685A/13620TimkenTapered Roller38.169.0119.0567.2 kN0.29
13685A/13621TimkenTapered Roller38.169.0119.0567.2 kN0.29
13686/13620TimkenTapered Roller38.169.0126.267.2 kN0.35

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