NSK 684A bearing

Bearing 684 A

684A NSK bearing,

NSK 684A bearing, Size: 4x9x2.5. NSK 684A are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.

Deep groove ball bearings 684 A

Bearing number : 684 A

Size (mm) : 4x9x2.5

Brand : NSK

Bore Diameter (mm) : 4

Outer Diameter (mm) : 9

Width (mm) : 2,5

Bearing dimensions and specification in NSK catalogue:

d - 4 mm

D - 9 mm

B - 2,5 mm

C - 2,5 mm

r min. - 0,15 mm

da min. - 4,8 mm

Da max. - 8,2 mm

ra max. - 0,1 mm

Weight - 0,00063 Kg

Basic dynamic load rating (C) - 0,64 kN

Basic static load rating (C0) - 0,225 kN

(Grease) Lubrication Speed - 53 000 r/min

(Oil) Lubrication Speed - 63 000 r/min