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KOYO / Spherical roller bearings

KOYO 21310RZ

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
110 mm
WidthB
27 mm
Dynamic load ratingC
157 kN
Static load ratingC0
151 kN
Limiting speednG
4500 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 / constructionSpherical roller bearings
Bore diameterd50 mm
Outside diameterD110 mm
WidthB27 mm
Basic dynamic load ratingC157 kN
Basic static load ratingC0151 kN
Fatigue load limitPu12 kN
Limiting speednG4500 r/min
Mass≈m1.37 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key060-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathSpherical roller bearings - Spherical roller bearings
Official Classification 1Spherical roller bearings
Technical Data17 parameters
Technical Data
ParameterSymbolValue
d50 mm
D110 mm
B27 mm
R(Min.)2 mm
Basic Load Ratings : Cr157 kN
Basic Load Ratings : C0R151 kN
Fatigue Load Limit : Cu12.0 kN
Limiting Speeds(Grease Lub.)4500 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Constant E0.25
Axial Load Factors : Y12.71
Axial Load Factors : Y24.04
Axial Load Factors : Y02.65
Da(Min.)60 mm
Da(Max.)100 mm
Ra(Max.)2 mm
Mass(Refer.)1.37 kg

Technical documents & data sheet

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Record identity
KOYO 21310RZ
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