A bearing (1a) for guiding a timepiece shaft about an axis, notably a guide bearing for a portion of a timepiece resonator shaft, comprising at least one pressing element (13a) arranged in such a way as to constantly exert an action on the shaft, radially or substantially radially with respect to the axis.

A bearing (1a) for guiding a timepiece shaft about an axis, notably a guide bearing for a portion of a timepiece resonator shaft, comprising at least one pressing element (13a) arranged in such a way as to constantly exert an action on the shaft, radially or substantially radially with respect to the axis.

A mechanical component, a mechanism module, a movement, and a timepiece superior in lubricating oil retaining performance are to be provided. A mechanical component includes: a first component having a first surface region; a second component having a second surface region on which the first surface region can slide; and an oil retaining film formed on at least one of the first surface region and the second surface region and more lipophilic than the region.

A mechanical component, a mechanism module, a movement, and a timepiece superior in lubricating oil retaining performance are to be provided. A mechanical component includes: a first component having a first surface region; a second component having a second surface region on which the first surface region can slide; and an oil retaining film formed on at least one of the first surface region and the second surface region and more lipophilic than the region.

The present invention relates to a shock-absorbing device for a staff of a wheel set of a timepiece arranged on a support, wherein said support is provided with an at least partially through slot for a pivot element cooperating with a pivot shank of the staff of the wheel set to be inserted therein, wherein said device additionally comprises a spring means comprising at least a first blade and a second blade.

The present invention relates to a shock-absorbing device for a staff of a wheel set of a timepiece arranged on a support, wherein said support is provided with an at least partially through slot for a pivot element cooperating with a pivot shank of the staff of the wheel set to be inserted therein, wherein said device additionally comprises a spring means comprising at least a first blade and a second blade.

A pivoting assembly includes an arbor rotatably mounted between two bearings, a member mounted between a shoulder of the arbor and a resilient washer, at least one of the two bearings including a limit stop which is arranged to enter into direct contact with the resilient washer in order to restrict the relative movement between the arbor and its bearings.

A pivoting assembly includes an arbor rotatably mounted between two bearings, a member mounted between a shoulder of the arbor and a resilient washer, at least one of the two bearings including a limit stop which is arranged to enter into direct contact with the resilient washer in order to restrict the relative movement between the arbor and its bearings.

A bearing for a timepiece including a bearing housing with a through-opening, the opening including a stressed, compact assembly including a first resilient member mounted in a first orifice of the through-opening; a second resilient member arranged between the first resilient member and a second orifice of the opening; a pivot element for pivoting a staff of a timepiece component, the element being arranged in a central zone of the second resilient member and positioned facing the second orifice through which the staff of the component can be inserted into the opening, and an endstone element interposed between the first and second resilient members.

The device for pivoting an arbor about a determined axis includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot, made of magnetic material, of the arbor. Further, the bearing includes a magnetic flux centring structure arranged between the magnet and the pivot, and a support for the centring structure. This centring structure includes a peripheral portion and a central portion resiliently connected to the peripheral portion by at least one connecting element, the central portion being formed of a highly magnetically permeable material and having smaller dimensions than those of the magnet. The peripheral portion is rigidly force fitted to the support so that the central portion is centred on the pivot axis.