SIFT BEARING STORE CATALOG

398/393TimkenTapered Roller

398/393 is a Timken tapered roller bearing, bore 50.8 mm, O.D. 110 mm, width 22 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d50.8mm
Outside dia. D110mm
Width B22mm
Mean dia. dm80.4mm

Original catalogue drawing - Timken - Single Row

398/393 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. D110 mmBore d50.8 mmWidth B22 mmCup width C27 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 diameter1104.3307
BInner-ring / bearing width21.9960.866
TOverall assembly width271.063
CCup / outer-ring width271.063
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)110.000
Outside dia. D (in)4.3307
Width B (mm)21.996
Width B (in).8660
Overall width T (mm)27.000
Overall width T (in)1.0630
Cup width C (mm)27.000
Cup width C (in)1.0630

Weight

Cup weight (kg)0.39

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm).8
Housing fillet r max (mm).8

Source & traceability

BrandTimken
Source catalogueTimken Bearing Dimension Catalog
Catalogue pagep.309 (dimensions) / p.29 (cone) / p.28 (cup)

Dimensions and component weights only - this catalogue publishes no load ratings or speeds.

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
398/394DTimkenTapered Roller50.811052.39172 kN2.28

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 398/393

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.