Cylindrical Roller Bearings

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Cylindrical Roller. All cylindrical roller bearing configurations (except RAA) provide precision control of the rollers for operation over a wide range of speeds with precision-ground, double-ribbed guide flanges on one ring. These roller bearings are found in turbine engine mainshaft, transmission and gearbox applications with high radial loads.

Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life.

Cylindrical roller bearings have rollers that provide a modified line contact with the cylindrical inner and outer ring raceways, while the rollers are guided by ground ribs on either the inner or outer ring. The cylindrical shape allows the inner ring to have axial movement relative to the outer ring.

Bearing Number	Bore Dia	Outer DIa	Width	Size
55 mm x 120 mm x mm Rollway NJ 311 EM Cylindrical Roller Bearings	11.5 Nm	56 mm	2.3 kg	17mm
55 mm x 120 mm x mm Rollway NU 311 EM Cylindrical Roller Bearings	No	35 ～ 50	6	Bearings with Housin
50 mm x 110 mm x mm Rollway NU 310 EM C3 Cylindrical Roller Bearings	80 mm	161 mm	44.4 mm	21.45 mm
50 mm x 110 mm x mm Rollway NU 310 EM Cylindrical Roller Bearings	38 mm	216 mm	85.7 mm	-20 °C
General A-0330-WB-18 Cylindrical Roller Bearings	13	6001	6	Yes (with retaining