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.
- 75 mm x 115 mm x 30 mm SKF NN 3015 TN/SP cylindrical roller bearings
- 3500 rpm
- 125000 N
- 480 mm x 650 mm x 128 mm SKF C 3996 KM cylindrical roller bearings
- 4500 rpm
- 58.00 mm
- 120 mm x 260 mm x 86 mm KOYO NJ2324R cylindrical roller bearings
- 82.55 mm
- 124.4 mm
- 360 mm x 540 mm x 243 mm KOYO DC5072 cylindrical roller bearings
- 0.475 kN
- 30.1 mm
- ISO HK354520 cylindrical roller bearings
- 107.73 g
- 1213 EKTN9
- 130 mm x 230 mm x 64 mm SKF NUP2226ECP cylindrical roller bearings
- 3400 rpm
- 57.20 mm
- 300 mm x 420 mm x 118 mm NKE NNC4960-V cylindrical roller bearings
- 151000 N
- 3200 rpm
- 180 mm x 320 mm x 86 mm NTN NU2236E cylindrical roller bearings
- 3200 rpm
- 1.00 mm
- SKF C 2220 K + AHX 320 cylindrical roller bearings
- 134000 N
- 3400 rpm