SIFT BEARING STORE CATALOG

28138/28300TimkenTapered Roller

28138/28300 is a Timken tapered roller bearing, bore 34.98 mm, O.D. 76.2 mm, width 20.94 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d34.98mm
Outside dia. D76.2mm
Width B20.94mm
Weight0.44kg
Mean dia. dm55.6mm

Original catalogue drawing - Timken - Single Row

28138/28300 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. D76.2 mmBore d34.98 mmWidth B20.94 mmCup width C15.51 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 diameter34.9761.377
DOutside diameter76.23
BInner-ring / bearing width20.940.8244
TOverall assembly width20.6370.8125
CCup / outer-ring width15.5070.6105
rChamfer (min)1.30.0512

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)34.976
Bore d (in)1.3770
Outside dia. D (mm)76.200
Outside dia. D (in)3.0000
Width B (mm)20.940
Width B (in).8244
Overall width T (mm)20.637
Overall width T (in).8125
Cup width C (mm)15.507
Cup width C (in).6105

Weight

Cone weight (kg)0.3
Cup weight (kg)0.14
Total weight (kg)0.44

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)1.5
Housing fillet r max (mm)1.3

Source & traceability

BrandTimken
Source catalogueTimken Bearing Dimension Catalog
Catalogue pagep.305 (dimensions) / p.81 (cone) / p.81 (cup)

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
28138/28300XTimkenTapered Roller34.9876.220.9463.5 kN0.43
28138X/28300TimkenTapered Roller3576.220.94-0.43

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
28138/28300XTimkenTapered Roller34.9876.220.9463.5 kN0.43
28138/28315TimkenTapered Roller34.988020.9463.5 kN0.49

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
14139/14272TimkenTapered Roller34.9869.0119.58-0.3
14139/14274TimkenTapered Roller34.9869.0119.5854.6 kN0.32
14139/14276TimkenTapered Roller34.9869.0119.5854.6 kN0.32
14139/14276DTimkenTapered Roller34.9869.0146.0495.1 kN0.71
14139/14283TimkenTapered Roller34.9872.0819.5854.6 kN0.4
19138/19262TimkenTapered Roller34.9866.6716.52-0.25
19138/19267XTimkenTapered Roller34.986816.5250.7 kN0.26
19138/19268TimkenTapered Roller34.9868.2616.5250.7 kN0.26

Request a quotation for 28138/28300

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