cylindrical roller bearings
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.
- 65 mm x 100 mm x 18 mm NSK NJ1013 cylindrical roller bearings
- 8000 rpm
- 6000 rpm
- 380 mm x 520 mm x 140 mm NTN NNU4976 cylindrical roller bearings
- 56.2 kN
- 71.5 mm
- 152,4 mm x 304,8 mm x 57,15 mm Timken 60RIT250 cylindrical roller bearings
- 65.000 mm
- 23.00 mm
- ISO BK172518 cylindrical roller bearings
- 60 mm
- 1.057 kN
- 240 mm x 390 mm x 55 mm Timken 240RF51 cylindrical roller bearings
- 10.5 cm³
- 107 N/µm
- 300 mm x 540 mm x 140 mm ISO NJ2260 cylindrical roller bearings
- 16800 N
- 6200 rpm