Bearing NA4912 (INA)

Needle roller bearings NA4912

Bearing number : NA4912

Size (mm) : 60x85x25

Brand : INA

Bore Diameter (mm) : 60

Outer Diameter (mm) : 85

Width (mm) : 25

Bearing dimensions and specification in INA catalogue:

d - 60 mm

D - 85 mm

B - 25 mm

F - 68 mm

r_min - 1 mm

s - 1,5 mm / Axial displacement

m - 426 g / Weight

C_r - 68000 N / Dynamic load rating (radial)

C_0r - 108000 N / Static load rating (radial)

C_ur - 18800 N / Fatigue limit load, radial

n_G - 6700 1/min / Limiting speed

n_B - 3750 1/min / Reference speed

dimension series 49, to DIN 617/ISO 1206

Designation

Bore Dia, mm

Outer Dia, mm: