Double row cylindrical roller bearings

Contact Now

In bearings of this type, the cylindrical rollers are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds.

There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs).

The outer and inner rings of all types are separable.

Some cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move axially relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which either the inner or outer rings has two ribs and the other ring has one, are capable of taking some axial load in one direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

Pressed steel or machined brass cages are generally used, but sometimes molded polyamide cages are also used.

Bearing Number Bore Dia Outer DIa Width Size
NN3926K Double row cylindrical roller bearings 440 mm 720 mm 226 mm 6 mm
NN30/950 Double row cylindrical roller bearings 900 mm 1340 mm 490 mm 325 mm
NNU4948 Double row cylindrical roller bearings 950 mm 1250 mm 420 mm 300 mm
NNUB4920-80 Double row cylindrical roller bearings 1120 mm 1540 mm 525 mm 335 mm
NNU3026K Double row cylindrical roller bearings 138.113 mm 339.999 mm 123.8 mm 190.5 mm
NN30/950 Double row cylindrical roller bearings 110 mm 200 mm 69.8 mm 2.1 mm
NN3080K Double row cylindrical roller bearings 1120 mm 1460 mm 500 mm 335 mm
NNUB4920-80 Double row cylindrical roller bearings 1060 mm 1460 mm 500 mm 335 mm
NNU4856K Double row cylindrical roller bearings 1060.355 mm 1400 mm 490 mm 335 mm
NNU4968 Double row cylindrical roller bearings 220 mm 400 mm 108 mm 4 mm
NN4936K Double row cylindrical roller bearings 260 mm 400 mm 104 mm 4 mm
NNU3052 Double row cylindrical roller bearings 180 mm 320 mm 86 mm 4 mm
1/7