CYLINDRICAL ROLLER BEARING

• Main Authors: FUJIWARA HIROKI, ISHII TETSUTO, MORI MASATSUGU
• Format: Patent
• Language: English
• Published: 31.03.2011
• Subjects: ARTIFICIAL STONE; BEARINGS; BLASTING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LIME, MAGNESIA; LUBRICATING; MECHANICAL ENGINEERING; METALLURGY; REFRACTORIES; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SLAG; THERMAL INSULATION IN GENERAL; TREATMENT OF NATURAL STONE; WEAPONS

PROBLEM TO BE SOLVED: To provide a cylindrical roller bearing and a cylindrical roller bearing device, which attain an increased speed of bearing by surely supplying lubricant to a necessary part and discharging the lubricant out of the bearing without being retained within the bearing during operation to suppress heating. SOLUTION: The cylindrical roller bearing includes an inner ring 5, an outer ring 2 having a collar portion 4, a plurality of rollers 6 interposed between raceways 5a, 2a of the inner and outer rings 2, 5, and a retainer 7 for holding the rollers 6. The collar portion 4 of the outer ring 2 includes a hole 4a opened between an edge of the outer ring raceway 2a and the outer surface of the bearing. The hole 4a has a groove-like shape in which at least an opening opened to the edge of the outer ring raceway 2a extends circumferentially. COPYRIGHT: (C)2011,JPO&INPIT