H-32, M.I.D.C. SATPUR, NASHIK-422007 Maharashtra, India
H-32, M.I.D.C. SATPUR, NASHIK-422007 Maharashtra, India
H-32, M.I.D.C. SATPUR
NASHIK-422007 Maharashtra, India
Year of Establishment: 1978
Engineered elastomeric bridge bearings precision-manufactured to transfer high vertical loads, accommodate longitudinal & transverse movements, and permit angular rotations across highway, railway, metro, and bridge infrastructure.
All bearings are designed and manufactured strictly per IRC:83-2018 (Part-II), MoRTH Section 2000, RDSO BS-131, and UIC 772-2R with virgin Natural Rubber (NR) or Chloroprene Rubber (CR) and IS: 2062 internal steel laminates.
Plain pad and strip bearings are solid elastomeric bearings without internal reinforcing plates. They are used for simple support conditions where vertical loads, rotation and limited translational movement need to be accommodated. For seismic applications, the bearing and its associated structural connections are designed according to the required seismic force-transfer arrangement.
Laminated bearings consist of alternating layers of elastomer and steel reinforcement bonded together during vulcanisation. The internal steel laminates restrain the lateral expansion of the elastomer, allowing the bearing to support vertical loads while accommodating rotation and movement.
Type C bearings incorporate thicker end laminates on one side or both sides of the bearing. This arrangement provides improved load distribution and rotation characteristics and helps avoid back lifting of the bearing edges under high shear displacement.
Type D bearings feature thicker end laminates exposed on the bearing surface. This engineered configuration is particularly suitable for direct contact with structural steelwork, providing increased frictional resistance at the bearing-structure interface.
Type E bearings feature a separate external steel plate integrally bonded and directly vulcanised with the bearing body under high temperature and hydraulic pressure. This configuration facilitates bolted connections and structural integration while maintaining elastomer-to-steel integrity.
Type F bearings incorporate positive anchorage through separate plates and suitable internal fastening arrangements. This provides positive location and restraint of the bearing, while the separate plate arrangement can also facilitate bearing replacement. The anchorage and fastening arrangement are designed to provide adequate positive location.
Type G bearings feature virgin dimpled Polytetrafluoroethylene (PTFE) bonded directly to the elastomeric bearing during precision factory vulcanisation. This creates a low-friction sliding surface allowing large translational movements while maintaining the angular rotational flexibility of the laminated elastomer.
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Type H bearings combine an elastomeric bearing with an engineered upper sliding interface assembly. The interface pairs a dimpled PTFE pad with an austenitic stainless steel plate, accommodating multi-directional thermal and service displacements across long bridge viaducts.
Type I bearings incorporate mechanical restraints against translation to simulate fixed or guided support conditions in structural bridge analysis. The restraint may be configured as a central high-strength shear pin or external side guide restraints, designed in strict conformity with IRC codes.
Type RDSO bearings are strictly designed and manufactured in compliance with Indian Railways Research Designs and Standards Organisation specification RDSO BS-131. Formulated with 100% virgin chloroprene rubber and heavy internal steel laminates, every bearing undergoes 100% proof load testing at 1.5x design vertical load to withstand heavy 25T & 32.5T freight train impacts.
Elastomeric bearings are engineered for exceptional vertical load capacities ranging from 1,000 kN to over 50,000 kN. The bearing confines an elastomeric disc within a heavy machined steel pot cylinder, causing it to act as an incompressible hydraulic fluid permitting multi-directional rotation. For sliding requirements, an integrated dimpled PTFE disc pairs with mirror-polished austenitic stainless steel.
We manufacture custom bearing dimensions, vertical load ratings up to 50,000+ kN, and elastomer layer configurations conforming to your project's approved GAD and structural bridge design drawings.