This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Durability Upgrading and Frictional Torque Lowering of the Seal Ring Used for Automatic Transmissions
Annotation ability available
Sector:
Language:
English
Abstract
In the seal ring used for the rotating portion of the automatic transmission, we have developed a seal ring in which the wear of the ring is reduced to 1/10 under PV-value of 12MPa · m/s and equivalent at PV-value of 30MPa·m/s and also the frictional torque of the rotating portion is reduced to 1/2 when compared with the conventional PTFE seal ring. This has been achieved by means of improvement of the oil pocket's shape, size, and the distance between oil pockets equally spaced on the side surface of the seal ring.
Recommended Content
Authors
Citation
Kuroki, T., Abe, Y., Sowa, M., and Kitade, A., "Durability Upgrading and Frictional Torque Lowering of the Seal Ring Used for Automatic Transmissions," SAE Technical Paper 920720, 1992, https://doi.org/10.4271/920720.Also In
References
- 1989 WARD'S AUTOMOTIVE YEARBOOK 127 130
- Kuroki Toshihiko et al. “Investigation of Leakage Phenomena and Improvement of Sealing Performance of Seal Ring Used for Rotary Shafts of Automatic Transmissions” SAE PAPER No. 910534 1991