Single row cylindrical roller bearings without an inner ring

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Cylindrical Roller Bearings are bearing in which cylinders are used as the rolling elements as opposed to balls in ball bearings. As such, the rollers have a greater (linear) contact area with the outer ring and are distribute loads across a broader surface. Subsequently, they have a relatively high radial load capacity and are suitable for high speeds. Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

Depending on the series as defined below a number of cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move axially relative to each other which can be used as free-end bearings.

Pressed steel (with or without tins or fins) or machined brass cages are generally used, but sometimes molded polyamide cages are also available depending on the application. Cylindrical Roller Bearings are also available without cages with a full complement of rollers. This allows even higher loads but at the expense of speed.

Bearing Number	Bore Dia	Outer DIa	Width	Size
skf RNU 203 ECP Single row cylindrical roller bearings without an inner ring	1900 r/min	765 kN	2 mm	5 mm
1.063 Inch \| 27 Millimeter x 47 mm x 0.551 Inch \| 14 Millimeter 1.063 Inch \| 27 Millimeter x 47 mm x 0.551 Inch \| 14 Millimeter skf RNU 204 Single row cylindrical roller bearings without an inner ring	140.0000 mm	65.000 mm	5600 rpm	2.00 mm
skf RNU 2207 ECP Single row cylindrical roller bearings without an inner ring	16 mm	25 N/mm²	e7	3 mm
0.902 Inch \| 22.9 Millimeter x 40 mm x 0.472 Inch \| 12 Millimeter 0.902 Inch \| 22.9 Millimeter x 40 mm x 0.472 Inch \| 12 Millimeter skf RNU 203 TN9 Single row cylindrical roller bearings without an inner ring	6.1	43000 r/min	0.319 kN	3.9 mm
skf RNU 1014 ML Single row cylindrical roller bearings without an inner ring	21.431 mm	68.04 g	37.008 mm	1/8 NPT
skf RNU 1014 ECP Single row cylindrical roller bearings without an inner ring	3600 rpm	32.00 mm	95.000 mm	4300 rpm
skf RNU 308 ECP Single row cylindrical roller bearings without an inner ring	1028 mm	18650 kN	1172 mm	360 r/min
skf RNU 308 ECJ Single row cylindrical roller bearings without an inner ring	0.6 mm	6.3 kN	590 N	36000 r/min
skf RNU 1028 ML Single row cylindrical roller bearings without an inner ring	72 mm	28.5 N·m	20 mm	5.5 mm
4.783 Inch \| 121.5 Millimeter x 200 mm x 2.638 Inch \| 67 Millimeter 4.783 Inch \| 121.5 Millimeter x 200 mm x 2.638 Inch \| 67 Millimeter skf RNU 2319 ECML Single row cylindrical roller bearings without an inner ring	0.3	280 mm	3 mm	0.3
skf RNU 1024 ML Single row cylindrical roller bearings without an inner ring	0.0048 kg	0.025	0.2 mm	7.5 mm
skf RNU 1030 ML Single row cylindrical roller bearings without an inner ring	156000 kN	192 mm	412 mm	426 mm