To provide a structure easy to handle without increasing a manufacturing cost and hardly causing a biting phenomenon of cylindrical rollers 4, 4.
A holder 5 is integrally formed, and pockets 8, 8 are formed in parts surrounded by a pair of circular ring parts 15 and column parts 16, 16. The contact angle θc of a roller holding part 13 formed in an inner-diameter-side opening of each of the pockets 8, 8 is set to 25-35°. In addition, when it is assumed that the diameter of an inscribed circle of each of the cylindrical rollers 4, 4 when the rolling surface of each of the cylindrical rollers 4, 4 contacts a separation prevention part 10 formed in an outer-diameter-side opening of each of the pockets 8, 8 by radially moving each of the cylindrical rollers 4, 4 is IC, the diameter of a circumscribed circle of each of the cylindrical rollers 4, 4 when the rolling surface of each of the cylindrical rollers 4, 4 contacts the roller holding part 13 is CC, and a pitch circle diameter of each of the cylindrical rollers 4, 4 is DM, an inequality of IC+CC-2DM>0 is satisfied.
| JP2009519379 | How to deposit amorphous carbon |
| JP2014081017 | GEAR DEVICE |
| JP2007139159 | BEARING FOR ROCKER ARM, STEEL MEMBER AND MANUFACTURING METHOD OF STEEL MEMBER |
Nakai Shun
Kinzo Koyama
Next Patent: SEALING STRUCTURE OF PIPE JOINT PART