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Class 148/906 - Roller bearing element


Subclass of Class 148 - Metal treatment
Definition: Art collection wherein the stock material is a roller bearing
No. of patents: 114
Last issue date: 10/14/2008


1      
NumberTitleIssue Date
7435308Rolling bearing
An inner ring 2 and an outer ring 3 of a rolling bearing 1 are made from steel that contains carbon in the range of 0.65 to 1.25% by mass, silicon in the range of 0.7 to 2.5% by mass, manganese in the range of 0.1 to 1.5% by mass, chromium in th...
10/14/2008
7422643Rolling element and method of producing the same
There is provided an inexpensive rolling element used under high interface pressure such as induction hardened gears, the rolling element being improved in the seizure resistance of its tooth flanks and having a temper hardness of HRC 50 or more at 300° C. To this ...
09/09/2008
7413704Case hardening bearing steel having excellent toughness and rolling contact fatigue life in intermediate temperature
A case hardening bearing steel having an excellent rolling contact fatigue life in intermediate temperature, in addition, excellent toughness at room temperature is provided. Specific means for solving the problems are as follows. The composition contains, by mass p...
08/19/2008
7207933Carburized roller member made of high carbon chromium steel
A roller member comprising high carbon chromium bearing steel having a carburization treatment. The bearing steel comprising a surface portion defined as a range between a surface of a rolling face of the roller member to a depth where a maximum shearing stress acts...
04/24/2007
7037383Process for producing a component from metal
A process for producing a component of metal includes a) carrying out a heat treatment to harden the component, which ends with a heating process, especially with a tempering or microstructural transformation process, at a given temperature (TE); b) carry...
05/02/2006
7037386Rolling bearing for continuously variable transmission
A rolling bearing for belt-type continuously variable transmission with a metal belt including pieces has an inner ring; an outer ring; and rolling elements, wherein at least one of the inner ring, the outer ring and the rolling element is made of an iron alloy havi...
05/02/2006
6948247Method for forming a bearing race for a cylindrical bearing
A cylindrical roller bearing or needle roller bearing for use with a rolling raceway surface is subjected to a carbonitriding treatment to produce a layer containing 30 to 80% retained austenite in the vicinity of its surface that contacts a carburized layer of a ro...
09/27/2005
6858100Rolling bearing
A rolling bearing including a rolling element made of steel is provided. The rolling element has a hardness of 620 to 750 HV in its interior. The rolling element is so constructed that the hardest point may exist within a depth of 10% of its diameter from a rolling ...
02/22/2005
6837946Method for the production of a part of a rolling bearing
Method for the production of a part of a rolling bearing, such as a ring for a ball bearing. The starting material used is a grade of steel containing 0.90 1.00% C; at most 0.15% Si; 0.25-0.45% Mn; at most 0.0015% P; at most 0.010% S; 1.30-1.50% Cr; at most 0.15% Ni...
01/04/2005
6770152Rolling bearing
The present invention provides a rolling bearing having high wear resistance at high temperature and with reduced manufacturing cost. At least one of an inner ring, an outer ring and rolling elements is formed of the following steel material into a predetermined sha...
08/03/2004
6725720Rolling bearing, and method of ultrasonically detecting flaws in bearing raceway ring of rolling bearing
A surface to serve as a surface under ultrasonic inspection has a roughness of 0.4 μmRa or less, and wherein all imperfections existing a controlled volume X corresponding to all cross sections of a raceway ring 1 assume a length of 0.2 mm or less as represe...
04/27/2004
6719854Rolling Bearing
There are provided a rolling bearing comprising an outer race, an inner race, and a plurality of rolling elements each interposed between the outer race and the inner race, at least one of the outer race, the inner race and the rolling elements being made of a steel...
04/13/2004
6666931Rolling part and power transmission part
There can be obtained a rolling part and power transmission part excluding any expensive elements as its constituents and formed of inexpensive elements C, Si and Mn optimized to allow the same to have a long rolling life under severe conditions for use a...
12/23/2003
6602360Rolling bearing
An outer ring 2 as a stationary ring is fabricated with an iron-steel material of the following composition. Alloying components contain carbon (C) 0.40 wt % to 1.20 wt %, silicon (Si) and/or aluminum (Al) 0.7 wt % to 2.0 wt %, manganese (Mn) 0.2 wt % to ...
08/05/2003
6592684Rolling bearing
A rolling bearing having excellent corrosion resistance and having a long life for use in airplanes is provided. The constituent parts of the rolling bearing are made from an alloy steel containing Cr which is required for the improvement of a rolling con...
07/15/2003
6589372Plain bearing producing method
A plain bearing for necks of rolls of rolling mills includes a bearing bushing of metal and a plain bearing alloy introduced into the bushing. The plain bearing alloy is based on tin with antimony and copper and contains of 6.8 to 7.2 percent by weight an...
07/08/2003
6585834Method for performing a heat treatment of metallic rings, and bearing ring thus obtained
A method of performing a heat treatment on steel rings, in particular for bearings, whereby the outer surface and inner surface of a preheated ring are exposed to different flows of a cooling medium such that the regions of the ring adjacent those surface...
07/01/2003
6582532Steel for large bearing and parts for large bearing
A steel for a large bearing suitable for parts of a large-sized bearing which are excellent in resistance to breakage and rolling fatigue life characteristics, and having a chemical composition by mass percentage of 0.80 to 1.30% of C, more than 0.35% and...
06/24/2003
6579384Ball for constant-velocity joint and method of manufacturing such ball
A ball for use in a constant-velocity joint, which is adapted to be interposed between an inner race and an outer race for transmitting rotational power therebetween, is produced by nitriding a surface of a ball made of bearing steel or a material equival...
06/17/2003
6565677Rolling bearing
A rolling bearing includes races and rolling elements, at least the race including: 0.60 wt % to 0.95 wt % of C; 10.0 wt % to 13.0 wt % of Cr; and at least one kind of 0.5 wt % to 2.0 wt % of Mo and 0.5 wt % to 2.0 wt % of V with the balance of Fe. The su...
05/20/2003
6540847Rolling structure steel
Rolling structure steel, comprising: 0.90-100% by wt. C; 0.95-1.05% by wt Si; 0.25-0.45% by wt Mn; 0.015% by wt. S max.; 0.025% by wt. P max.; 1.30-1.50% by wt. Cr, and 0.17-0.20% by wt. Mo. Preferably this steel is produced by austenising at 860+20° C.,...
04/01/2003
6537390Antifriction bearing
An antifriction bearing comprises bearing rings and rolling members which are made from a steel material containing 0.15 to 0.3 wt. % of carbon by being subjected to heat treatments including carburizing. The surface layer of raceway surface of each of th...
03/25/2003
6517644Rolling bearing and method manufacturing the same
An outer ring 2 as a stationary ring is fabricated with a steel material having the composition as shown under. The steel material contains, as alloying elements, C 0.80 to 1.10 wt %, Si 0.20 to 0.50 wt %, Mn 0.2 to 1.0 wt %. It also contains any two kind...
02/11/2003
6491768Anti-friction bearing and method for fabricating anti-friction & bearing
A bearing and a method for fabricating a bearing. The bearing is intended to be used in office automation equipment and the like is improved in impact resistance and load capacity. Its rotational accuracy will not deteriorate in long-term use and its quie...
12/10/2002
6488789Wheel bearing unit
A wheel bearing unit is provided in which the service life level is improved without making the size and weight of the bearing unduly large. The wheel bearing unit for rotatably supporting a car wheel on the body of a motor vehicle comprises a rotary memb...
12/03/2002
6475309Rolling bearing steel having a surface with a lower bainitic structure and a method for the production thereof
A method for producing a rolling bearing component, in which, before ustenizing, the steel is subjected to cold deformation and quenching is such that the bainitic structure is obtained; and a rolling bearing component produced by the method, such as a ro...
11/05/2002
6440237Process for forming cold formed high-load bearing steel parts
A process for forming a roller bearing comprising the steps of providing a cylindrical slug that comprises at least 0.7 weight percent carbon and up to 1.6 weight percent of at least one alloying element. The slug has lateral and side surfaces. A centered...
08/27/2002
6440233Rolling bearing
An inner ring and an outer ring are composed as follows. These members are fabricated with a steel for bearing containing carbon 0.6 wt % or higher. A carbonitrided layer is formed in a raceway surface. The amount of residual austenite at a position of 2%...
08/27/2002
6440232Toroidal-type continuously variable transmission
In a toroidal-type continuously variable transmission, at least one of components including inner and outer races of a power roller bearing, an input disk, and an output disk is composed of an alloy steel material containing C: 0.15 to 0.5 wt %, Si: 0.1 t...
08/27/2002
6422756Rolling bearing apparatus
In a balling bearing 1 of small diameter equipped with an outer race 2 and an inner race 3, and a plurality of rolling elements 4 disposed between the outer race 2 and the inner race 3, at least rolling element 4 is composed of a steel of Cr concentration...
07/23/2002
6415512Method and apparatus for surface processing of sintered oilless bearing
A method for surface processing of sintered oilless bearing and an apparatus thereof are disclosed by which method the efficiency of covering the pores and the surface roughness of protuberance that is nonporous surface may be improved by means of surface...
07/09/2002
6409846Rolling bearing
In a rolling bearing having a fixed race, a rotary race and a plurality of rolling elements disposed between said fixed race and said rotary race, at least said fixed race is made of a steel having 0.35 to 0.55% by weight of C, 11.0 to 17.0% by weight of ...
06/25/2002
6403026Steel and process for the manufacture of a component for bearings
Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%ࣘCࣘ1.5%; 0.4%ࣘMnࣘ1.5%; 0.75%ࣘSiࣘ2.5%, 0.2%ࣘCrࣘ2%; 0%ࣘNiࣘ0.5%; 0%ࣘMoࣘ0.2%; 0%ࣘAlࣘ0.05%; Sࣘ0.04%; the ...
06/11/2002
6398886Method and device for completing outer joint elements that are formed without cutting
A process of finishing outer joint parts formed in a non-cutting way and intended for constant velocity joints, said outer joint parts having a longitudinal axis and an inner recess which extends in the direction of the longitudinal axis and which, in the...
06/04/2002
6398420Rolling bearing device
The material of inner ring, outer ring and rolling element is formed by a steel material having a chromium (Cr) content of 5% by weight or more. The material is then subjected to cutting. Thereafter, the material thus cut is subjected to heat treatment so...
06/04/2002
6383317Process for the manufacture of a component for bearings and its products
Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%ࣘCࣘ1.5%; 0.4%ࣘMnࣘ1.5%; 0.75%ࣘSiࣘ2.5%; 0.2%ࣘCrࣘ2%; 0%ࣘNiࣘ0.5%; 0%ࣘMoࣘ0.2%; 0%
05/07/2002
6358333Rolling member
An inexpensive rolling apparatus improved in resistance to fretting, acoustic performance, resistance to corrosion, life and workability is provided. At least one of an outer member, an inner member and rolling elements of the apparatus is formed of an al...
03/19/2002
6337145Multilayer material for sliding elements and process for the production thereof
A process for the production of sliding elements in which an overlay of lead-tin-copper is applied by electroplating to the prefabricated semi-finished product, and in which a ternary, fluoroborate-free electroplating bath is used without brighteners and ...
01/08/2002
6333001Micro-alloyed steel rolling bearings
A micro-alloyed steel for rolling bearings and especially for HBU/THU forgings with improved yield strength in "as forged condition. The steel has the following composition 0.5-0.7% C, 0-0.6% Si, 0.4-1.2% Mn, 0-0.035% S, 0.05-2.0% V, 80-160 ppm N, the rem...
12/25/2001
6325867Rolling bearing and heat treatment method therefor
A rolling bearing contains no more than 0.3 wt % of nitrogen in a grinding allowance portion after carbonitriding and hardening heat treatments, contains from 0.9 wt % (inclusive) up to 1.6 wt % (inclusive) of carbon and from 0.05 wt % (inclusive) up to 0...
12/04/2001
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