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KOYO / Single direction / with flat back faces

KOYO 51124

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

Technical data available
Bore diameterd
120 mm
Outside diameterD
155 mm
WidthB
25 mm
Limiting speednG
1500 r/min
Mass≈m
1.16 kg
d
120 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 diameterd120 mm
Outside diameterD155 mm
WidthB25 mm
Fatigue load limitPu11.9 kN
Limiting speednG1500 r/min
Mass≈m1.16 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
d120 mm
D155 mm
T25 mm
R(Min.)1 mm
Basic Load Ratings Ca111 kN
Basic Load Ratings C0A305 kN
Fatigue Load Limit : Cu11.9 kN
Limiting Speeds(Grease Lub.)1500 min-1
Limiting Speeds(Oil Lub.)2300 min-1
D1(Max.)155 mm
D1(Min.)122 mm
D2- mm
D3- mm
A- mm
R- mm
C- mm
Da(Min.)141 mm
Da(Max.)134 mm
Ra(Max.)1 mm
Mass(Refer.)1.16 kg

Technical documents & data sheet

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Record identity
KOYO 51124
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