Patent application number | Description | Published |
20090243224 | Resin seal ring and manufacturing method - The present invention provides a seal ring which can be prevented from being broken by an expansion and a shock applied thereto when the seal ring is fitted on a rotary shaft and does not have a configurative disadvantage such as a burr. Therefore no post-processing is required. The present invention also provides materials of the seal ring and a method of manufacturing the seal ring. The seal ring is made of resin and having two abutments confronting each other and a gate mark formed in an injection molding operation. | 10-01-2009 |
20100093569 | SLIDING MATERIAL COMPOSITION - The present invention provides a sliding material composition that is capable of continuously supplying a lubricant to the surface of a sliding portion and has a low frictionality and a low wearability. A sliding material composition of the present invention includes a resin material with which at least porous silica and a lubricant are mixed. The ratio of the sum of the mixing amount of the porous silica and that of the lubricant to the whole amount of the sliding material composition is 30 to 60 vol %. The interconnected cell ratio of the oil-containing porous silica in which the lubricant is held by the porous silica is not less than 20% when the interconnected cell ratio is found by a predetermined computing method to be carried out by utilizing the principle of a Monte Carlo method. | 04-15-2010 |
20100316315 | MEMBER FOR ROLLING BEARING AND ROLLING BEARING - The present invention provides a member for a rolling bearing ( | 12-16-2010 |
20110160384 | INJECTION MOLDED ARTICLE, RESIN-MADE SLIDING BEARING, RESIN-MADE GEAR, RESIN-MADE CROWN-SHAPED CAGE, RESIN-MADE SEAL AND ROLLING - It is an object of the present invention to provide an injection-molded article such as a resin-made cage, a resin-made seal, a resin-made sliding bearing, and a resin-made gear having reliable flowability, enhanced mechanical strength and toughness, and improved wear resistance. A resin composition is composed of a biodegradable polyester polymer particularly polybutylene succinate to which not less than 10 wt % nor more than 40 wt % of a fibrous inorganic reinforcing material and not less than 0.5 wt % nor more than 10 wt % of polycarbodiimide resin are added. The injection-molded article is obtained by injection molding the resin composition. | 06-30-2011 |
20120039558 | CAGE, ROLLING BEARING, METHOD FOR MANUFACTURING CAGE, AND INJECTION MOLD - A cage is made of a magnesium alloy and has a light weight and a high strength. The cage is made of a magnesium alloy such as AZ91D, and is formed by means of injection molding. In this cage, a confluence region is brought away to outside the cage during the injection molding. The confluence region is a region including voids formed by merging of flows of the magnesium alloy. | 02-16-2012 |
20120128281 | RESIN COMPOSITION AND METHOD FOR PRODUCTION THEREOF, AND ROLLING BEARING AND SLIDING BEARING - It is an object of the present invention to provide a resin composition whose flowability is secured when the resin composition is injection-molded into injection-molded articles such as a resin-made crown-shaped cage and a resin-made seal both for a rolling bearing and a resin-made sliding bearing and which is capable of enhancing the mechanical strengths and toughnesses of these injection-molded articles to such an extent that these injection-molded articles can be used as bearing members. The resin composition is formed into a molded article and used as a bearing member. The resin composition is composed of polyamide resin or polyester resin to which polycarbodiimide is added. The polyamide resin is at least one resin selected from among polyamide 66 resin and polyamide 11 resin. The polyester resin is polytrimethylene terephthalate resin. 0.5 to 6 wt % of the polycarbodiimide is contained in an entirety of the resin composition. A resin-made crown-shaped cage ( | 05-24-2012 |
20120178654 | SLIDING MATERIAL COMPOSITION - The present invention provides a sliding material composition that is capable of continuously supplying a lubricant to the surface of a sliding portion and has a low frictionality and a low wearability. A sliding material composition of the present invention includes a resin material with which at least porous silica and a lubricant are mixed. The ratio of the sum of the mixing amount of the porous silica and that of the lubricant to the whole amount of the sliding material composition is 30 to 60 vol %. The interconnected cell ratio of the oil-containing porous silica in which the lubricant is held by the porous silica is not less than 20% when the interconnected cell ratio is found by a predetermined computing method to be carried out by utilizing the principle of a Monte Carlo method. | 07-12-2012 |
20140177990 | ROLLING BEARING - The present invention provides a rolling bearing which can be large-sized, is excellent in its corrosion resistance, and is allowed to prevent mounting accuracy from deteriorating, a fixing force from decreasing, vibration from occurring at a portion of the rolling bearing to be fixed to a bearing box or the like, and can be used for a long term even in a highly corrosive environment. A rolling bearing ( | 06-26-2014 |
20140234152 | SINTERED BEARING AND METHOD FOR MANUFACTURING SAME - Provided is a sintered bearing that is capable of reducing cost through reduction in usage amount of copper, excellent in initial running-in characteristics and quietness, and is high in durability. Raw material powders including iron powder, flat copper powder, low-melting point metal powder, and graphite are loaded into a mold, and a green compact is formed under a state in which the flat copper powder is caused to adhere onto a molding surface. Subsequently, sintering is carried out without causing iron in the green compact to react with carbon so that an iron structure is formed of a ferrite phase. In this manner, a sintered bearing ( | 08-21-2014 |
20140368304 | POWDER FOR MAGNETIC CORE AND POWDER MAGNETIC CORE - Provided is a powder for a magnetic core ( | 12-18-2014 |