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KOYO / Single direction / with flat back faces

KOYO 51260

Axial deep groove ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
300 mm
Outside diameterD
420 mm
WidthB
95 mm
Limiting speednG
400 r/min
Mass≈m
42.5 kg
d
300 mm

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 specifications7 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle direction / With flat back faces
Bore diameterd300 mm
Outside diameterD420 mm
WidthB95 mm
Fatigue load limitPu61.9 kN
Limiting speednG400 r/min
Mass≈m42.5 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key070-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathThrust ball bearings - Single direction - With flat back faces
Official Classification 1Thrust ball bearings / Single direction / With flat back faces
Technical Data20 parameters
Technical Data
ParameterSymbolValue
d300 mm
D420 mm
T95 mm
R(Min.)3 mm
Basic Load Ratings Ca713 kN
Basic Load Ratings C0A2600 kN
Fatigue Load Limit : Cu61.9 kN
Limiting Speeds(Grease Lub.)400 min-1
Limiting Speeds(Oil Lub.)600 min-1
D1(Max.)415 mm
D1(Min.)304 mm
D2- mm
D3- mm
A- mm
R- mm
C- mm
Da(Min.)371 mm
Da(Max.)349 mm
Ra(Max.)2.5 mm
Mass(Refer.)42.5 kg

Technical documents & data sheet

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Record identity
KOYO 51260
Document matching
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