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
2.953 Inch \| 75 Millimeter x 5.118 Inch \| 130 Millimeter x 0.984 Inch \| 25 Millimeter NACHI NJ215 Cylindrical Roller Bearings	120 mm	180 mm	25 mm	1.5 mm
2.756 Inch \| 70 Millimeter x 4.921 Inch \| 125 Millimeter x 0.945 Inch \| 24 Millimeter NACHI NJ214 Cylindrical Roller Bearings	300 mm	360 mm	25 mm	2.5 mm
2.756 Inch \| 70 Millimeter x 4.921 Inch \| 125 Millimeter x 0.945 Inch \| 24 Millimeter NACHI NJ214 MC3 Cylindrical Roller Bearings	120 mm	170 mm	20 mm	1.5 mm
2.559 Inch \| 65 Millimeter x 4.724 Inch \| 120 Millimeter x 0.906 Inch \| 23 Millimeter NACHI NJ213 MC3 Cylindrical Roller Bearings	60 mm	90 mm	13 mm	0.6 mm
2.559 Inch \| 65 Millimeter x 4.724 Inch \| 120 Millimeter x 0.906 Inch \| 23 Millimeter NACHI NJ213 Cylindrical Roller Bearings	160 mm	220 mm	25 mm	1.5 mm
2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 0.866 Inch \| 22 Millimeter NACHI NJ212 Cylindrical Roller Bearings	80 mm	110 mm	13 mm	0.6 mm
2.165 Inch \| 55 Millimeter x 3.937 Inch \| 100 Millimeter x 0.827 Inch \| 21 Millimeter NACHI NJ211 MC3 Cylindrical Roller Bearings	220 mm	280 mm	25 mm	2 mm
0.984 Inch \| 25 Millimeter x 2.047 Inch \| 52 Millimeter x 0.591 Inch \| 15 Millimeter NACHI NJ205 Cylindrical Roller Bearings	200 mm	295 mm	35 mm	2 mm
1.969 Inch \| 50 Millimeter x 3.543 Inch \| 90 Millimeter x 0.787 Inch \| 20 Millimeter NACHI NJ210 MC3 Cylindrical Roller Bearings	150 mm	230 mm	30 mm	1.5 mm
0.787 Inch \| 20 Millimeter x 1.85 Inch \| 47 Millimeter x 0.551 Inch \| 14 Millimeter NACHI NJ204 Cylindrical Roller Bearings	170 mm	220 mm	20 mm	1.5 mm
5.118 Inch \| 130 Millimeter x 11.024 Inch \| 280 Millimeter x 2.283 Inch \| 58 Millimeter NACHI N326MY C3 Cylindrical Roller Bearings	130 mm	190 mm	25 mm	1.5 mm
4.724 Inch \| 120 Millimeter x 10.236 Inch \| 260 Millimeter x 2.165 Inch \| 55 Millimeter NACHI N324MY C3 Cylindrical Roller Bearings	190 mm	240 mm	25 mm	1 mm