Product Description
Spherical bearing, also called spherical bridge bearing, is one type of bridge bearings with large rotation capacity. Spherical bearing is formed by top steel plate, stainless steel slide, PTFE slide, convex plate, curved PTFE and concave plate. The sliding of convex plate and concave plate can accommodate the structural rotations of the beam end. The stainless steel slide and PTFE slide can further reduce friction coefficient, thus displacement of expansion and contraction can be accommodated. Thus, spherical bearings are especially suitable for more complex bridges.
Classification
The spherical bridge bearings are classified into three types according to different sliding direction.
* Fixed type. Provide rotations capacity from any direction only.
* Guided type (Uni-directional sliding). Rotation plus movement in one direction.
* Free sliding (multi-directional sliding). Rotation plus movement in all directions.
The spherical bridge bearings are classified into three types according to different sliding direction.
* Fixed type. Provide rotations capacity from any direction only.
* Guided type (Uni-directional sliding). Rotation plus movement in one direction.
* Free sliding (multi-directional sliding). Rotation plus movement in all directions.
Features
* Available in any directions movements.
* For the PTFE sheet, there are minimum sliding friction coefficient.
* PTFE sheet with lubricant to reduce sliding friction.
* Accommodate high rotations and any directional movements.
* Suitable for low temperature regions.
* The effect on concrete reaction is homogeneous.
* Strong enough for long time service.
* Complying with BS EN-1337, KS4424, AASHO, ISO or other custom standards.
* For the PTFE sheet, there are minimum sliding friction coefficient.
* PTFE sheet with lubricant to reduce sliding friction.
* Accommodate high rotations and any directional movements.
* Suitable for low temperature regions.
* The effect on concrete reaction is homogeneous.
* Strong enough for long time service.
* Complying with BS EN-1337, KS4424, AASHO, ISO or other custom standards.
Specification
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Material
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Steel and PTFE sliding plate.
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Working temperature range
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Normal type: -25 °C to +60 °C.
Cold resistant type: -40 °C to +60 °C. |
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Friction coefficient
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(In condition of PTFE layer with silicon grease lubrication and stresses about 30 MPa)
Normal temperature: 0.03. Low temperature: 0.05. |
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Bearing horizontal force
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Guided type: Horizontal force is 10% vertical bearing capacity.
Fixed type: horizontal force is 10% vertical bearing capacity. |
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Vertical bearing capacity
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1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 8000, 9000, 10000, 12500, 15000, 17500, 2000 kN.
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Displacement
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In longitudinal direction
1000–2500 kN, 50/100 mm. 3000–20000 kN, 50/100/150 mm. In transverse direction: ± 40 mm. |
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Popular specifications
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Fixed type spherical bridge bearing.
Guided type spherical bridge bearing. Free sliding type spherical bridge bearing. |
Installation
Product Details
Packing & Delivery
Company Profile
FAQ
1. who are we? We are based in Hebei, China, start from 2013,sell to Domestic Market(40.00%),Southeast Asia(23.00%),Africa(16.00%),North America(7.00%),South America(7.00%),Western Europe(7.00%). There are total about 51-100 people in our office. 2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment; 3.what can you buy from us? Bridge Expansion Joint,Rubber Waterstop,Swelling Waterstop Strip,Seismic Isolation Bearing,Rubber Bearing Pad 4. why should you buy from us not from other suppliers? 1.More than 20 professional senior technical personnel. 2.There are 10 series,over 200 species and more than 2,000 specifications. 3.All products have been authenticated by the Ministry of Communications. 4.Self-research and development,professional. 5. what services can we provide? Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES； Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash,Escrow; Language Spoken:English,Chinese
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