Typical applications for CAROPLUS Plain Bearing Bushes, Bearing Plates and Bearing Pads are:

• Mechanical and structural steel engineering
• Automotive industry (tool guides, e. g. to DIN 9834)
• Rolling mill bearings
• Locks and weirs for surface and underwater engineering
• Shipbuilding and offshore engineering
• Cranes and elevators
• transporting and conveying equipment
• Building and earth moving machines
• Mining machines and quarrying industry
• Industrial furnace production
• Chemical industry
• Injection moulding machines
• Eccentric and packaging machines
• Manufacture of tools, jigs and fixtures
• Special machines construction

Construction

Uniformly distributed holes are drilled into the bearing surfaces of the base material and are filled with a specially formulated solid lubricant compound.

Arrangement of the lubricant holes in the bearing surface of the Caroplus^®-Bushes

The proportion of solid lubricant to the total bearing surface amounts to 25 to 30 % and the geometrical arrangement of the holes is determined in such a way that in direction of travel overlapping is always guaranteed.

Solid Lubricant and Function

A very low-friction graphite base compound is used as a solid lubricant. This does not contain any lead or other heavy metals and, therefore, can be used without hesitation in the food industry. The solid lubricant, embedded in the holes, starts with the first sliding movements of the running-in operation to build up an adherent uniform lubricating film. The solid lubricant fills the roughness valleys of the two surfaces sliding one on top of the other. At the same time a smoothing of the roughness points takes place and a continuous compression-proof solid lubricant film is formed. By this means, the bearing surfaces are separated from each other and metallic contact is prevented.

Besides its high load-carrying capacity the solid lubricant also acts as an efficient carrier for embedded metallic rubbings, foreign particles and dirt in the lubricant reservoirs (holes). These embedded particles displace a similar volume of lubricant, which is then, in addition, available for the lubrication of the bearing surfaces. Together with the very good antifrictional properties of the solid lubricant film this embedding and displacing process is decisive for the operationally reliable and maintenance-free running of the Caroplus^® Plain Bearings and Bearing Elements.

Mounting instructions

Due to the large difference thermally coefficient of expansion between the metallic base material and the solid lubricant the bushes must NOT be subcooled for mounting using liquid nitrogen. It is recommended to provide the CAROPLUS bearing elements before mounting with a starting lubrication film.

In the case of very high specific bearing loads we recommend the use of an additional antitorsion device.

Design / dimensioning / calculation

We are pleased to offer you a special service, with help and support in choice, design and dimensioning of slide bearings made of Carobronze^®, Caroplus^® and Carint alloys. Please complete the questionnaire and send it together with your drawing. The more information you provide, the more detailed our reply and the recommendations that we can offer you.