NJ18/630ECMA/HB1 SKF bearing

Cylindrical roller bearings, single row NJ 18/630 ECMA/HB1

Bearing number : NJ 18/630 ECMA/HB1

Size (mm) : 630x780x69

Brand : SKF

Bore Diameter (mm) : 630

Outer Diameter (mm) : 780

Width (mm) : 69

Bearing dimensions and specification in SKF catalogue:

d - 630 mm

D - 780 mm

B - 69 mm

d₁ - - 682 mm

D₁ - - 724 mm

F - 667 mm

r_1,2 - min. - 4 mm

s - 1.5 mm

d_a - min. - 645 mm

d_a - max. - 662 mm

d_b - min. - 685 mm

D_a - max. - 765 mm

r_a - max. - 3 mm

Basic dynamic load rating - C - 1100 kN

Basic static load rating - C₀ - 2500 kN

Fatigue load limit - P_u - 183 kN

Reference speed - 800 r/min

Limiting speed - 1000 r/min

Calculation factor - k_r - 0.05

Mass bearing - 75 kg