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KOYO / Single direction / with flat back faces

KOYO 51140

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

Technical data available
Bore diameterd
200 mm
Outside diameterD
250 mm
WidthB
37 mm
Limiting speednG
940 r/min
Mass≈m
4.13 kg
d
200 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 diameterd200 mm
Outside diameterD250 mm
WidthB37 mm
Fatigue load limitPu20.4 kN
Limiting speednG940 r/min
Mass≈m4.13 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
d200 mm
D250 mm
T37 mm
R(Min.)1.1 mm
Basic Load Ratings Ca215 kN
Basic Load Ratings C0A675 kN
Fatigue Load Limit : Cu20.4 kN
Limiting Speeds(Grease Lub.)940 min-1
Limiting Speeds(Oil Lub.)1450 min-1
D1(Max.)247 mm
D1(Min.)203 mm
D2- mm
D3- mm
A- mm
R- mm
C- mm
Da(Min.)230 mm
Da(Max.)220 mm
Ra(Max.)1 mm
Mass(Refer.)4.13 kg

Technical documents & data sheet

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Record identity
KOYO 51140
Document matching
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