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KOYO / Thrust needle roller bearings / inch series, separate type / thrust needle roller and cage assembly(nta)

KOYO NTA-6681

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

Technical data available
Mass≈m
0.062 kg
Dc1
104.78 mm
Dc
128.57 mm
Dw
3.175 mm
Eb
107.44 mm
Ea
124.46 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 specifications3 parameters
Core specifications
ParameterSymbolValue
Variant / constructionThrust needle roller bearings / Inch series, separate type / Thrust needle roller and cage assembly(NTA)
Fatigue load limitPu41.3 kN
Mass≈m0.062 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key090-040-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathNeedle roller bearings - Thrust needle roller bearings - Inch series, separate type - Thrust needle roller and cage assembly(NTA)
Official Classification 1Needle roller bearings / Thrust needle roller bearings / Inch series, separate type / Thrust needle roller and cage assembly(NTA)
Technical Data20 parameters
Technical Data
ParameterSymbolValue
Dc1104.78 mm
Dc128.57 mm
Dw3.175 mm
Eb107.44 mm
Ea124.46 mm
Basic Load Ratings Ca63.61 kN
Basic Load Ratings C0A414.6 kN
Fatigue Load Limit : Cu41.3 kN
Limiting Speeds3200 min-1
(Refer.)Mass0.062 kg
Washer DesignationTRA-6681
Washer Dimensions : D104.78 mm
Washer Dimensions : D1128.57 mm
Washer Dimensions : H(Max.)0.81 mm
Washer Dimensions : H(Min.)0.76 mm
Piloting Dimensions : S(Max.)104.78 mm
Piloting Dimensions : S(Min.)104.70 mm
Dia. To Clear O.D. : H129.39 mm
(Refer.)Washer Mass0.027 kg
Mass(Refer.)0.062 kg

Technical documents & data sheet

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Record identity
KOYO NTA-6681
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