cylindrical roller bearings

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
90 mm x 160 mm x 40 mm NACHI NU 2218 E cylindrical roller bearings	Yes (with retaining	6	Round Type	30
40 mm x 110 mm x 27 mm NACHI N 408 cylindrical roller bearings	Flat	30	Single Row	Steel
150 mm x 250 mm x 80 mm NACHI 23130EX1K cylindrical roller bearings	62 mm	0.78 kg	13.9 mm	16 mm
90 mm x 190 mm x 43 mm NACHI 21318AX cylindrical roller bearings	Deep Groove Ball Bea	Flanged Pilot Type	6002	71 ～ 140
170 mm x 260 mm x 42 mm NACHI NUP 1034 cylindrical roller bearings	4.76 mm	82 mm	1.5	61.8 mm
200 mm x 360 mm x 98 mm NACHI 22240EK cylindrical roller bearings	None	6	Cam Followers	8 Days
60 mm x 110 mm x 22 mm NACHI NJ 212 cylindrical roller bearings	Bearing Steel	No	With steel plate cov	No
95 mm x 200 mm x 67 mm NACHI NUP 2319 cylindrical roller bearings	Angular Contact Bear	10 Days or more	98	Round Type
120 mm x 260 mm x 55 mm NACHI NJ 324 E cylindrical roller bearings	Base Face Type	Bearings with Housin	Deep Groove Ball Bea	3
40 mm x 90 mm x 23 mm NACHI 21308E cylindrical roller bearings	Others	Bearing Steel	No	J7
180 mm x 320 mm x 86 mm NACHI NU 2236 cylindrical roller bearings	Round Type	25	Clear Anodize	7 Days
100 mm x 215 mm x 82,6 mm Timken 100RN33 cylindrical roller bearings	16 mm	21.2 kN	0.96 kN	NTN