SIFT BEARING STORE CATALOG

3778/373TimkenTapered Roller

3778/373 is a Timken tapered roller bearing, bore 47.62 mm, O.D. 100 mm, width 30.3 mm, weight 1.07 kg. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d47.62mm
Outside dia. D100mm
Width B30.3mm
Weight1.07kg
Mean dia. dm73.8mm

Original catalogue drawing - Timken - Single Row

3778/373 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. D100 mmBore d47.62 mmWidth B30.3 mmCup width C25 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 diameter47.6251.875
DOutside diameter1003.937
BInner-ring / bearing width30.3021.193
TOverall assembly width28.1731.1092
CCup / outer-ring width250.9843
rChamfer (min)20.0787

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)47.625
Bore d (in)1.8750
Outside dia. D (mm)100.000
Outside dia. D (in)3.9370
Width B (mm)30.302
Width B (in)1.1930
Overall width T (mm)28.173
Overall width T (in)1.1092
Cup width C (mm)25.000
Cup width C (in).9842

Weight

Cone weight (kg)0.6
Cup weight (kg)0.47
Total weight (kg)1.07

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)6.4
Housing fillet r max (mm)2.0

Source & traceability

BrandTimken
Source catalogueTimken Bearing Dimension Catalog
Catalogue pagep.308 (dimensions) / p.54 (cone) / p.26 (cup)

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
3778/3720TimkenTapered Roller47.6293.2630.3122 kN0.89

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
369-S/362TimkenTapered Roller47.629022.23102 kN0.56
369-S/362ATimkenTapered Roller47.6288.922.23102 kN0.56
369-S/363DTimkenTapered Roller47.629050.01177 kN1.27
369A/362TimkenTapered Roller47.629022.23102 kN0.56
369A/362ATimkenTapered Roller47.6288.922.23102 kN0.56
369A/363DTimkenTapered Roller47.629050.01177 kN1.27
3779/3720TimkenTapered Roller47.6293.2630.3122 kN0.91
3779/3726TimkenTapered Roller47.6295.2530.3122 kN0.96

Request a quotation for 3778/373

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