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KOYO / Single-row / metric series

KOYO 33121JR

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

Technical data available
Bore diameterd
105 mm
Outside diameterD
175 mm
WidthB
56 mm
Dynamic load ratingC
453 kN
Static load ratingC0
607 kN
Limiting speednG
2100 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 diameterd105 mm
Outside diameterD175 mm
WidthB56 mm
Basic dynamic load ratingC453 kN
Basic static load ratingC0607 kN
Fatigue load limitPu76 kN
Limiting speednG2100 r/min
Mass≈m5.33 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
d105 mm
D175 mm
T56 mm
B56 mm
C44 mm
R(Min.)2.5 mm
R1(Min.)2 mm
Basic Load Ratings : Cr453 kN
Basic Load Ratings : C0R607 kN
Fatigue Load Limit : Cu76.0 kN
Limiting Speeds(Grease Lub.)2100 min-1
Limiting Speeds(Oil Lub.)2800 min-1
Load Center Spread : A43.2 mm
Constant E0.40
Axial Load Factors : Y11.48
Axial Load Factors : Y00.82
Da(Min.)150 mm
Db(Max.)116 mm
Da(Max.)165 mm
Db(Min.)169 mm
Sa(Min.)9 mm
Sb(Min.)12 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)5.33 kg

Technical documents & data sheet

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Record identity
KOYO 33121JR
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