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KOYO / Single-row / metric series

KOYO 32012JR

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

Technical data available
Bore diameterd
60 mm
Outside diameterD
95 mm
WidthB
23 mm
Dynamic load ratingC
108 kN
Static load ratingC0
127 kN
Limiting speednG
3900 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 / Metric series
Bore diameterd60 mm
Outside diameterD95 mm
WidthB23 mm
Basic dynamic load ratingC108 kN
Basic static load ratingC0127 kN
Fatigue load limitPu19 kN
Limiting speednG3900 r/min
Mass≈m0.621 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Metric series
Official Classification 1Tapered roller bearings / Single-row / Metric series
Technical Data25 parameters
Technical Data
ParameterSymbolValue
d60 mm
D95 mm
T23 mm
B23 mm
C17.5 mm
R(Min.)1.5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr108 kN
Basic Load Ratings : C0R127 kN
Fatigue Load Limit : Cu19.0 kN
Limiting Speeds(Grease Lub.)3900 min-1
Limiting Speeds(Oil Lub.)5200 min-1
Load Center Spread : A21.0 mm
Constant E0.43
Axial Load Factors : Y11.39
Axial Load Factors : Y00.77
Da(Min.)85 mm
Db(Max.)67 mm
Da(Max.)86.5 mm
Db(Min.)91 mm
Sa(Min.)4 mm
Sb(Min.)5.5 mm
Ra(Max.)1.5 mm
Rb(Max.)1.5 mm
Mass(Refer.)0.621 kg

Technical documents & data sheet

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Record identity
KOYO 32012JR
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