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KOYO / Spherical roller bearings

KOYO 21316RZ

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

Technical data available
Bore diameterd
80 mm
Outside diameterD
170 mm
WidthB
39 mm
Dynamic load ratingC
344 kN
Static load ratingC0
339 kN
Limiting speednG
2900 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 diameterd80 mm
Outside diameterD170 mm
WidthB39 mm
Basic dynamic load ratingC344 kN
Basic static load ratingC0339 kN
Fatigue load limitPu27.5 kN
Limiting speednG2900 r/min
Mass≈m4.53 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
d80 mm
D170 mm
B39 mm
R(Min.)2.1 mm
Basic Load Ratings : Cr344 kN
Basic Load Ratings : C0R339 kN
Fatigue Load Limit : Cu27.5 kN
Limiting Speeds(Grease Lub.)2900 min-1
Limiting Speeds(Oil Lub.)3900 min-1
Constant E0.23
Axial Load Factors : Y12.88
Axial Load Factors : Y24.29
Axial Load Factors : Y02.82
Da(Min.)92 mm
Da(Max.)158 mm
Ra(Max.)2 mm
Mass(Refer.)4.53 kg

Technical documents & data sheet

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Record identity
KOYO 21316RZ
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