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KOYO / Spherical roller bearings

KOYO 21307RZ

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

Technical data available
Bore diameterd
35 mm
Outside diameterD
80 mm
WidthB
21 mm
Dynamic load ratingC
86.8 kN
Static load ratingC0
75.8 kN
Limiting speednG
6200 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 diameterd35 mm
Outside diameterD80 mm
WidthB21 mm
Basic dynamic load ratingC86.8 kN
Basic static load ratingC075.8 kN
Fatigue load limitPu5.9 kN
Limiting speednG6200 r/min
Mass≈m0.572 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
d35 mm
D80 mm
B21 mm
R(Min.)1.5 mm
Basic Load Ratings : Cr86.8 kN
Basic Load Ratings : C0R75.8 kN
Fatigue Load Limit : Cu5.90 kN
Limiting Speeds(Grease Lub.)6200 min-1
Limiting Speeds(Oil Lub.)8300 min-1
Constant E0.27
Axial Load Factors : Y12.49
Axial Load Factors : Y23.71
Axial Load Factors : Y02.43
Da(Min.)43.5 mm
Da(Max.)71.5 mm
Ra(Max.)1.5 mm
Mass(Refer.)0.572 kg

Technical documents & data sheet

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Record identity
KOYO 21307RZ
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