Cylindrical Roller Bearings

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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
1.575 Inch \| 40 Millimeter x 2.677 Inch \| 68 Millimeter x 0.827 Inch \| 21 Millimeter NACHI NN3008M2KC9NAP4 Cylindrical Roller Bearings	100 mm	150 mm	20 mm	1 mm
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 0.787 Inch \| 20 Millimeter NACHI NN3007M2KC9NAP4 Cylindrical Roller Bearings	70 mm	100 mm	13 mm	0.6 mm
1.181 Inch \| 30 Millimeter x 2.165 Inch \| 55 Millimeter x 0.748 Inch \| 19 Millimeter NACHI NN3006M2KC1NAP4 Cylindrical Roller Bearings	70 mm	100 mm	13 mm	0.6 mm
4.134 Inch \| 105 Millimeter x 8.858 Inch \| 225 Millimeter x 1.929 Inch \| 49 Millimeter NACHI NJ321MY C3 Cylindrical Roller Bearings	80 mm	110 mm	13 mm	0.6 mm
3.543 Inch \| 90 Millimeter x 7.48 Inch \| 190 Millimeter x 1.693 Inch \| 43 Millimeter NACHI NJ318 Cylindrical Roller Bearings	200 mm	260 mm	25 mm	2 mm
3.74 Inch \| 95 Millimeter x 7.874 Inch \| 200 Millimeter x 1.772 Inch \| 45 Millimeter NACHI NJ319 MY C3 Cylindrical Roller Bearings	140 mm	200 mm	25 mm	1.5 mm
3.543 Inch \| 90 Millimeter x 7.48 Inch \| 190 Millimeter x 1.693 Inch \| 43 Millimeter NACHI NJ318 MC3 Cylindrical Roller Bearings	150 mm	210 mm	25 mm	1.5 mm
3.346 Inch \| 85 Millimeter x 7.087 Inch \| 180 Millimeter x 1.614 Inch \| 41 Millimeter NACHI NJ317 M C3 Cylindrical Roller Bearings	250 mm	310 mm	25 mm	2 mm
3.15 Inch \| 80 Millimeter x 6.693 Inch \| 170 Millimeter x 1.535 Inch \| 39 Millimeter NACHI NJ316 MC3 Cylindrical Roller Bearings	250 mm	330 mm	30 mm	2 mm
3.15 Inch \| 80 Millimeter x 6.693 Inch \| 170 Millimeter x 1.535 Inch \| 39 Millimeter NACHI NJ316 Cylindrical Roller Bearings	35 mm	60 mm	10 mm	0.6 mm
2.953 Inch \| 75 Millimeter x 6.299 Inch \| 160 Millimeter x 1.457 Inch \| 37 Millimeter NACHI NJ315 MC3 Cylindrical Roller Bearings	250 mm	355 mm	40 mm	2 mm
2.362 Inch \| 60 Millimeter x 5.118 Inch \| 130 Millimeter x 1.22 Inch \| 31 Millimeter NACHI NJ312 MC3 Cylindrical Roller Bearings	90 mm	130 mm	16 mm	1 mm