Patent application number | Description | Published |
20090123104 | Needle Roller Bearing - A needle roller bearing comprises an outer ring having a plurality of outer ring members split by a parting line extending in the axial direction of the bearing, and a plurality of needle rollers rotatably arranged on the raceway surface of the outer ring. Thus, a non-contact length “L” between the outer ring members and the needle roller at an abutment part of the adjacent outer ring members, and an effective length “w” of the needle roller has a relation such that L/w<0.5. | 05-14-2009 |
20090235887 | Roller bearing, camshaft support structure, and internal combustion engine - A needle roller bearing ( | 09-24-2009 |
20100000356 | Gear and Gear Drive Unit - Provided are a gear and a gear drive unit which allow oil film formation to a sufficient degree between tooth surfaces of gears rotating at high-speed and which help to prevent generation of pitting, abrasion, and prevent scoring, temperature rise, and wear to thereby achieve an improvement in terms of durability. A tooth surface is provided with a multitude of minute recesses arranged at random, in which an axial surface roughness parameter Ryni of the surface thus provided with the recesses is set to a range: 0.8 μm≦Ryni≦2.3 μm. As a result, the tooth surface is endowed with a high oil film formation performance, and it is possible to attain a long service life even under a low-viscosity/thin-lubrication condition in which the oil film is extremely thin. | 01-07-2010 |
20100012059 | Roller Bearing, Camshaft support structure,and internal combustion engine - A roller bearing includes an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction and a plurality of rollers arranged along an inner diameter surface of the outer ring. A slope surface ( | 01-21-2010 |
20100058750 | THRUST ROLLER BEARING AND TORQUE CONVERTER - A thrust roller bearing includes a plurality of rollers, a retainer, an annular first track ring having a track surface, an outer periphery flange part, and a first claw part, and an annular second track ring having a track surface, an inner periphery flange part, and a second claw part. Bearing internal gaps to allow the eccentric rotation of the first track ring and the second track ring are provided between the outer periphery flange part and an outer edge part of the retainer, and between the inner periphery flange part and an inner edge part of the retainer. In addition, at least one of the first and second claw parts is a projection part formed by a bending process. Furthermore, an edge part of the retainer opposed to the projection part has a first slope part formed at a corner part on the side opposed to the track surface, and a second slope part having a radial length relatively shorter than that of the first slope part, and formed at a corner part on the opposite side in a thickness direction. | 03-11-2010 |
20100195945 | NEEDLE ROLLER BEARING AND CRANKSHAFT SUPPORT STRUCTURE - A needle roller bearing ( | 08-05-2010 |
20100278471 | ROLLER BEARING RETAINER AND NEEDLE ROLLER BEARING - A roller bearing retainer ( | 11-04-2010 |
20100278472 | ROLLER BEARING RETAINER, NEEDLE ROLLER BEARING, AND PRODUCTION METHOD OF ROLLER BEARING RETAINER - A roller bearing retainer | 11-04-2010 |
20110088506 | PUMP TAPPET - A pump tappet ( | 04-21-2011 |
20110132304 | CAM FOLLOWER FOR ROCKER ARM AND CAM FOLLOWER DEVICE - A cam follower for a rocker arm includes a cylindrical outer ring ( | 06-09-2011 |
20120008893 | HAVLED OUTER RING, ROLLER BEARING, AND ROTARY SUPPORT STRUCTURE - A positioning protrusion | 01-12-2012 |
20120093452 | CAGED ROLLER BEARING, CAGED ROLLER BEARING ASSEMBLY, AND CAGE - A caged roller bearing includes a plurality of rollers ( | 04-19-2012 |