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KOYO / Single-row / metric series

KOYO 30210CR

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
90 mm
WidthB
20 mm
Dynamic load ratingC
96.7 kN
Static load ratingC0
95.8 kN
Limiting speednG
4300 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 diameterd50 mm
Outside diameterD90 mm
WidthB20 mm
Basic dynamic load ratingC96.7 kN
Basic static load ratingC095.8 kN
Fatigue load limitPu14.3 kN
Limiting speednG4300 r/min
Mass≈m0.59 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
d50 mm
D90 mm
T21.75 mm
B20 mm
C16 mm
R(Min.)1.5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr96.7 kN
Basic Load Ratings : C0R95.8 kN
Fatigue Load Limit : Cu14.3 kN
Limiting Speeds(Grease Lub.)4300 min-1
Limiting Speeds(Oil Lub.)5700 min-1
Load Center Spread : A22.7 mm
Constant E0.55
Axial Load Factors : Y11.10
Axial Load Factors : Y00.60
Da(Min.)76 mm
Db(Max.)58 mm
Da(Max.)81.5 mm
Db(Min.)86 mm
Sa(Min.)4 mm
Sb(Min.)5.5 mm
Ra(Max.)1.5 mm
Rb(Max.)1.5 mm
Mass(Refer.)0.590 kg

Technical documents & data sheet

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Record identity
KOYO 30210CR
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