| 摘要 |
A strain-wave generator (5) of a flat-type strain-wave gearing (1) has an insertion member (15) disposed between two wave bearings (13, 14). The insertion member (15) is pressed into an elliptical outer peripheral surface (12) of a plug (11) and is fixed thereto by an adhesive. An inner-ring contacting part (23) of the insertion member (15) makes contact with inner rings (16a, 19) of the wave bearings (13, 14) from the direction of a central axis (1a). When the flat-type strain-wave gearing (1) is in an operating state, the wave bearings (13, 14) can be prevented from moving against the plug (11) in the direction of the central axis (1a) by means of a thrust force acting on the wave bearings (13, 14). |
