Bearing ZARN2557-TV (INA)

Needle roller/axial cylindrical roller bearings ZARN2557-TV

Bearing number : ZARN2557-TV

Size (mm) : 25x57x50

Brand : INA

Bore Diameter (mm) : 25

Outer Diameter (mm) : 57

Width (mm) : 50

Bearing dimensions and specification in INA catalogue:

d - 25 mm

D - 57 mm

H - 50 mm

B - 10 mm

C - 20 mm

D₁ - 47 mm

D_{a max} - 48 mm

d_{a min} - 39 mm

H₁ - 35 mm

r_{1 min} - 0,6 mm

r_min - 0,3 mm

m - 0,53 kg / Weight

C_a - 35500 N / Dynamic load rating (axial)

C_0a - 86000 N / Static load rating (axial)

C_r - 22600 N / Dynamic load rating (radial)

C_0r - 36000 N / Static load rating (radial)

n_{G Ol} - 6000 1/min / Limiting speed for oil lubrication (valid only with adequate oil cooling)

n_{G Fett} - 1900 1/min / Limiting speed for grease lubrication

M_RL - 0,55 Nm / Bearing frictional torque

c_aL - 1900 N/µm / Axial rigidity

c_kL - 350 Nm/mrad / Tilting rigidity

M_m - 0,99 kg x cm^2 / Mass moment of inertia for rotating inner ring

- 1 µm / Axial runout (The axial runout data for screw drive bearing arrangements are based on the rotating inner ring)

- ZMA25/45 / Designation of recommended INA locknut

- AM25 / Designation of recommended INA locknut

M_A - 25 Nm / Tightening torque (Only valid in conjunction with INA precision locknuts)

- 10470 N / Axial preload force

Designation

Bore Dia, mm

Outer Dia, mm: