The Lovejoy ROSTA rubber spring element compactly fulfills several functions; simultaneously serving as a torsion spring, pivot bearing, and an anti-vibration mount. Elements also work without any noise, and are maintenance-free.
The ROSTA element is a jointed spring with four pre-tensioned special rubber bodies between housings and a inner square profile offset by 45 degrees. Due to the high friction, no axial retention is necessary.
The element has no metallic contact or friction locations.
The working angle is a maximum of +/- 30 degrees.
The inertia of the natural rubber provides energy damping during turning movements as a result of the flexing friction of the rubber bodies.
Thanks to the multi-functionality of the Lovejoy ROSTA element, savings can be made in the initial investments through the avoidance of expensive bearing and damping components. The maintenance-free operation lowers operating costs through the longer service intervals. The guaranteed functionality increases the availability of installations and machinery.
All Lovejoy ROSTA elements are unaffected by mud, dirt, water, and sunlight; and they can withstand temperatures from -40° to +180°F (-40° to +80°C). Since ROSTA elements have no metal-to-metal contact, there are no parts to wear out and no lubrication is needed. Count on less maintenance, and then count the savings!