Cylindrical Roller Bearings
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.
![4.331 Inch | 110 Millimeter x 9.449 Inch | 240 Millimeter x 1.969 Inch | 50 Millimeter SKF NJ 322 ECJ/C3 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2050915-4-331-inch-110-millimeter-x-9-449-inch-240-millimeter-x-1-969-inch-50-millimeter-skf-nj-322-ecj-c3-cylindrical-roller-bearings.jpg)
![4.331 Inch | 110 Millimeter x 7.874 Inch | 200 Millimeter x 1.496 Inch | 38 Millimeter SKF NJ 222 ECP/C3 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2051308-4-331-inch-110-millimeter-x-7-874-inch-200-millimeter-x-1-496-inch-38-millimeter-skf-nj-222-ecp-c3-cylindrical-roller-bearings.jpg)
![3.346 Inch | 85 Millimeter x 7.087 Inch | 180 Millimeter x 1.614 Inch | 41 Millimeter SKF NJ 317 ECM/C4VA301 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2051309-3-346-inch-85-millimeter-x-7-087-inch-180-millimeter-x-1-614-inch-41-millimeter-skf-nj-317-ecm-c4va301-cylindrical-roller-bearings.jpg)
![5.118 Inch | 130 Millimeter x 7.087 Inch | 180 Millimeter x 1.969 Inch | 50 Millimeter SKF NNU 4926 B/SPC3W33 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2050920-5-118-inch-130-millimeter-x-7-087-inch-180-millimeter-x-1-969-inch-50-millimeter-skf-nnu-4926-b-spc3w33-cylindrical-roller-bearings.jpg)
![5.906 Inch | 150 Millimeter x 12.598 Inch | 320 Millimeter x 4.252 Inch | 108 Millimeter SKF NJG 2330 VH/C3 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2050919-5-906-inch-150-millimeter-x-12-598-inch-320-millimeter-x-4-252-inch-108-millimeter-skf-njg-2330-vh-c3-cylindrical-roller-bearings.jpg)
![5.118 Inch | 130 Millimeter x 9.055 Inch | 230 Millimeter x 2.52 Inch | 64 Millimeter SKF NU 2226 ECP/C3 Cylindrical Roller Bearings](https://m.officialfnradio.com/uploaded_images/d2050923-5-118-inch-130-millimeter-x-9-055-inch-230-millimeter-x-2-52-inch-64-millimeter-skf-nu-2226-ecp-c3-cylindrical-roller-bearings.jpg)