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
240 mm x 320 mm x 60 mm NTN NN3948KC1NAP4 cylindrical roller bearings	40 mm	UC210-30G2	16 mm	35.1 kN
70,000 mm x 125,000 mm x 24,000 mm NTN NF214E cylindrical roller bearings	No Cover	Bearing Steel	Quote	SH44M
190 mm x 400 mm x 78 mm NTN N338 cylindrical roller bearings	20 Days	Deep Groove Ball Bea	38	Single
630,000 mm x 850,000 mm x 100,000 mm NTN NU19/630 cylindrical roller bearings	6	Available	8 Days	Flat Round Flanged T
240 mm x 360 mm x 92 mm NTN NN3048KC1NAP5 cylindrical roller bearings	Single	[Aluminum Alloy] Alu	30 ～ 50	Bearings with Housin
150 mm x 270 mm x 45 mm NTN NU230E cylindrical roller bearings	No	35100	No	Standard