Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Radial needle roller and cage assemblies
  • Metric series
  • K,K.ZW
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Bearing No. K4X7X7TN

Specifications
(Boundary dimensions ...etc)

Fw(mm)4
Ew(mm)7
Bc(mm)7
Basic load ratings : Cr(kN)1.83
Basic load ratings : C0r(kN)1.32
Fatigue load limit : Cu(kN)0.200
Cage material P/S()P
Limiting speeds(Grease lub.)(min-1)34000
Limiting speeds(Oil lub.)(min-1)52000

Mounting dimensions

Recommended dimensions - Shaft : S(max.)(mm)4.000
Recommended dimensions - Shaft : S(min.)(mm)3.995
Recommended dimensions - Housing : H(max.)(mm)7.014
Recommended dimensions - Housing : H(min.)(mm)7.005

Refer.

(Refer.)Mass(kg) 0.0005
JTEKT

2025/06/01