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KOYO / Single-row / inch series

KOYO 2788R/29

Tapered roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
38.1 mm
Outside diameterD
76.2 mm
WidthB
25.654 mm
Dynamic load ratingC
92.6 kN
Static load ratingC0
92.2 kN
Limiting speednG
5400 r/min

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / Inch series
Bore diameterd38.1 mm
Outside diameterD76.2 mm
WidthB25.654 mm
Basic dynamic load ratingC92.6 kN
Basic static load ratingC092.2 kN
Fatigue load limitPu13.8 kN
Limiting speednG5400 r/min
Mass≈m0.497 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Inch series
Official Classification 1Tapered roller bearings / Single-row / Inch series
Technical Data23 parameters
Technical Data
ParameterSymbolValue
d38.100 mm
D76.200 mm
T23.812 mm
B25.654 mm
C19.050 mm
R(Min.)3.6 mm
R1(Min.)0.8 mm
Basic Load Ratings : Cr92.6 kN
Basic Load Ratings : C0R92.2 kN
Fatigue Load Limit : Cu13.8 kN
Limiting Speeds(Grease Lub.)5400 min-1
Limiting Speeds(Oil Lub.)7200 min-1
Load Center Spread : A15.9 mm
Constant :E0.30
Axial Load Factors : Y11.98
Axial Load Factors : Y01.09
Da50.0 mm
Db43.5 mm
Da68.0 mm
Db70.0 mm
Ra(Max.)3.6 mm
Rb(Max.)0.8 mm
Mass(Refer.)0.497 kg

Technical documents & data sheet

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Record identity
KOYO 2788R/29
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