NTN 4T-78250/78551 bearing

Bearing 4T-78250/78551

NTN 4T-78250/78551 bearing, Size: 63.5x140.03x36.512. NTN 4T-78250/78551 are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.

Tapered roller bearings 4T-78250/78551

Bearing number : 4T-78250/78551

Size (mm) : 63.5x140.03x36.512

Brand : NTN

Bore Diameter (mm) : 63,5

Outer Diameter (mm) : 140,03

Width (mm) : 36,512

Bearing dimensions and specification in NTN catalogue:

d - 63,5 mm

D - 140,03 mm

T - 36,512 mm

B - 33,236 mm

C - 23,52 mm

ra1 max. - 2,3 mm

a - -8,5 mm

Da - 117 mm

db - 79 mm

ra max. - 2,3 mm

da - 85 mm

Db - 132 mm

Weight - 2,54 Kg

Basic dynamic load rating (C) - 171 kN

Basic static load rating (C0) - 212 kN

(Grease) Lubrication Speed - 2 600 r/min

(Oil) Lubrication Speed - 3 400 r/min

Calculation factor (e) - 0,87

Calculation factor (Y0) - 0,38

Calculation factor (Y2) - 0,69

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