DARA
DARA
The document introduces the Dara radial ball-bearing differential, a product by MPS Micro Precision Systems AG, designed for use in watchmaking. It highlights the innovation and compact design of the differential, which is protected under European patent no. EP 1 995 649 A2.
The Dara differential is an independent module ready for integration into watch movements. It requires no adjustments for friction or play, ensuring accuracy in displaying the power reserve. The module is very compact, reliable, and does not require lubrication, which streamlines logistics.
The main challenge addressed by the Dara differential is managing friction and play settings within an independent module. Traditional power reserve indicators in watches account for the rotation of the ratchet wheel during manual winding and the unwinding of the main-spring. The Dara differential uses four-point contact ball-bearings to achieve this in a compact modular design.
The differential's design links the two inputs of the differential gear to the barrel-drum's gear and the ratchet wheel, with the output connected to the power-reserve indicator. This setup ensures precise and reliable performance.
The dimensions of the Dara differential are specified as d 0.50 x D 4.20 x E 1.00mm, emphasizing its compact nature.
Catalog excerpts
Let’s innovate together DARA Le différentiel à billes radial The radial ball-bearing differential www.mpswatch.co
Open the catalog to page 1
Le differential Dara de MPS est un module compact, precis et fiable pour indicateur de reserve de marche The Dara differential by MPS is a compact, precise and reliable module for power reserve indicator Le differentiel a billes Dara The radial ball-bearing differential • Independent module ready for immediate integration into the movement • Accuracy in displaying the power reserve • Very compact • Reliability tested • Lubrication free • Streamlining logistics • Module independant, pret a etre integre au mouvement • Aucun reglage de friction • Aucun reglage d'ebat • Precision dans I'affichage...
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