To lower cost and facilitate assembly by dispensing with highly precise drilling and handling of a small ball.
The planetary roller type power transmission device is provided with a stationary ring 2 concentrically externally inserted to a high speed shaft 1, a plurality of planetary rollers 3 intervened between the high speed shaft 1 and the stationary ring 2 in a pressed condition, and a carrier 4 including a bottomed cylindrical portion 4a and retaining respective planetary rollers 3 rotatably and at regular intervals in the circumferential direction. The planetary roller type power transmission device having a bottom part 4a1 of the cylindrical portion 4a of the carrier 4 arranged on the respective shaft ends of the high speed shaft 1 and a low speed shaft 7 has the high speed shaft 1 and the low speed shaft 7 ends directly contacting the bottom part 4a1 of the carrier 4.
| JP6071309 | Stepless speed variator |
| JPH0942397 | PLANETARY ROLLER TYPE TRACTION DRIVE DEVICE |
FUKUSHIMA SHIGEAKI
MAKINO TOMOAKI
BANDO HIROMICHI
