SIFT BEARING STORE CATALOG

368A/363DTimkenTapered Roller

368A/363D is a Timken tapered roller bearing, bore 50.8 mm, O.D. 90 mm, height 50.01 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d50.8mm
Outside dia. D90mm
Overall width T50.01mm
Dynamic Cr177kN
Weight1.17kg
Mean dia. dm70.4mm

Original catalogue drawing - Timken TRB Catalog, page 526

368A/363D 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

DdTOutside dia. D90 mmBore d50.8 mmOverall width T50.01 mmCup width C42.07 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 diameter50.82
DOutside diameter903.5433
TOverall assembly width50.011.9689
CCup / outer-ring width42.071.6563
rChamfer (min)0.80.0315

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)50.800
Bore d (in)2.0000
Outside dia. D (mm)90.000
Outside dia. D (in)3.5433
Overall width T (mm)50.010
Overall width T (in)1.9689
Cup width C (mm)42.070
Cup width C (in)1.6563

Load ratings & speeds

Basic dynamic load rating Cr (lbs)39900
Basic dynamic load rating Cr (N)177000
Dynamic rating C1 (N, ISO)177000
Dynamic rating C1 (lbf, ISO)39900
Radial rating C90 (N)26400
Radial rating C90 (lbf)5930
Thrust rating Ca90 (N)14400
Thrust rating Ca90 (lbf)3250
Factor e0.32
Factor Y12.11
Factor Y23.14
Factor K1.83
Geometry factor G133.8
Geometry factor G214.0
Geometry factor Cg0.0773

Weight

Weight (kg)1.17

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)0.8
Shaft shoulder db (mm)62.0
Housing shoulder Da (mm)84.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
444,2501023,386
629,50039213,083
822,1251,02434,133
1017,7002,15471,814
1511,8008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 177,000 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.526 (dimensions)
Series typeTDO

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
368/363DTimkenTapered Roller50.89050.01177 kN1.16

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
368A/362TimkenTapered Roller50.89022.23102 kN0.51
368A/362ATimkenTapered Roller50.888.922.23102 kN0.51
368A/362AXTimkenTapered Roller50.888.922.23102 kN0.55
368A/362XDTimkenTapered Roller50.889.9850.4177 kN1.27

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
18200/18335ETimkenTapered Roller50.88518.26-0.42
18200/18337TimkenTapered Roller50.885.7218.2661.1 kN0.39
18790/18720TimkenTapered Roller50.88517.4654.7 kN0.36
18790/18721TimkenTapered Roller50.883.3117.4654.7 kN0.34
18790/18723TimkenTapered Roller50.888.917.4654.7 kN0.48
18790/18724TimkenTapered Roller50.888.917.4654.7 kN0.42
28580/28520TimkenTapered Roller50.889.9825.498.9 kN0.66
28580/28521TimkenTapered Roller50.892.0825.498.9 kN0.7

Request a quotation for 368A/363D

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Online enquiry formrichard@bearingsfit.com