Specialized Bearings Tailored To Your Project

When your project depends on precision and durability, Cosmec Inc. provides a full range of services to create specialized bearings. Our engineering team can help you select or create the right bearing for your project.

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Bearing Installation Recommendations

1. Bearings at the jobsite should be stored in a dry, sheltered area that is free from dirt or dust until it is time for installation.
2. It is not permitted to remove the sole and top plates of bearings for separate attachment to the structure, except under the direct supervision of the manufacturer and by permission of the engineer.
3. Bearings should be evenly supported over their upper and lower surfaces under all erection and service conditions.
4. Bearings should only be lifted by their undersides or by specially designed lifting lugs.
5. When installing bearings, avoid damaging or contaminating the bearing’s surfaces.
6. Align the centerlines of the bearing assembly with the ones of the substructure and superstructure. On guided bearings, properly align the guiding mechanism with the designated expansion direction of the structure.
7. Bearing straps or retaining clamps should be left in place as long as possible to ensure parts of the bearings are not inadvertently displaced, relative to each other. Carefully remove straps or clamps before any normal structural movement takes place, such as post-tensioning.
8. Set offsets of upper and lower bearing parts as required by contract drawings.
9. When grout is used, it must be placed at an even density beneath the entire bearing surface without any voids or hard spots.
10. The mating surface of the superstructure shall be level within a slope of 1:200. No local project irregularities shall exceed 1/32”. The surface beneath the bearings shall be flat, horizontal, and sound.
11. The contractor will repair any damage to bearing finishes follow installation.
12. Welding procedures will be established by the contractor to restrict the maximum temperature reached by the bonded PTFE surfaces to a minimum of 200 degrees Fahrenheit and to restrict the maximum temperature reached by the elastomer (polyether-urethane, neoprene, or natural rubber) to 250 degrees Fahrenheit.
13. The load on the bearing at the time of welding should be restricted to the dead load weight of the beams alone.
14. It is essential to mask and protect the PTFE and polished stainless steel surfaces to protect them from blast abrasives and paint application during construction.

Custom Bearing Solutions, Designed to Your Specs

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