Oy Safematic Ltd.

Juhani Ljokkoi

Markku Lummila

Esko Lopperi

Esko Poikolainen

Esa Salovaara

Juhani Kuusela

Heikki Niittyla

Raumo Vehmaa

A lubrication system for leading a lubricant from a lubrication unit to a point to be lubricated, the lubrication unit and said point being movable with respect to each other. The system comprises means for leading a quantity of the lubricant at predetermined intervals from the lubrication unit to the point to be lubricated. For reducing the demand for space, a fast coupler is provided for leading lubricant from the lubrication unit to the point to be lubricated. The fast coupler is arranged to be in a position allowing the flow when the lubrication unit and the point to be lubricated are interconnected and in a position preventing the flow when the lubrication unit and the point to be lubricated are detached from each other.

Lubrication system

The invention relates to a slide ring seal for sealing a shaft rotatable with respect to a wall, which seal comprises a body portion and seal rings provided with slide rings, which seal rings are so arranged with respect to each other that the sealing slide faces of the slide rings are pressed against each other and rotate with respect to each other. Each slide ring is fastened in the seal ring thereof by a shrink fit, whereby the peripheral face of the slide ring is in engagement with a face provided on the seal ring, so that the radial press force of the shrink fit is directed to act on a centroid of the cross-sectional area of the slide ring. In order to ensure that the forces of the shrink fit keep acting accurately on the centroid of the cross-sectional area of the slide ring, at least one of the faces which are in engagement with each other in the shrink fit is convex. The highest point of the convex surface is in a radial plane extending through the centroid of the cross-sectional area of the slide ring.

Slide ring seal

Growing community of inventors

Muurame, Finland

Juhani Ljokkoi