POD bridge bearing is an innovation of pot bearing. The bearing uses the Polyether-Urethane (PU) disc with lateral expansion resistance, does not require the copper sealing strip, is able to withstand the high vertical load and maintains the movement and rotational capabilities as a typical pot bearing.
POD bridge bearings are classified into 2 main types: fixed POD bridge bearings and free sliding POD bridge bearings.
Fixed bridge bearings only allow rotation in any direction and transmits the pressure through a specific point.
Free sliding POD bearings (including both guided sliding bearing and free sliding bearing) allow rotation and unidirectional or multi-directional displacement.
To ensure the long-life durability, POD bearings are protected against corrosion by the following methods: painted with two-component epoxy paint, PU-based paint (Polyurethane), hot dip galvanization according to standards ASTM A123 standards and especially the Al – Mg spraying coating method (at the ratio of 5% Al and 95% Mg) which ensure the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours (8-hour dry-wet cycle) according to the standard ASTM B117.
Guided POD bearing
1- Upper plate; 2- Stainless steel plate; 3-PTFE plate; 4- Guiding bar; 5-Piston; 6- Polyurethane disc; 7-Bottom plate; 8 - Anchor dowel
Based on the features, POD bridge bearings are classified into 3 types:
3. MAIN ADVANTAGES
- Long service life
- Be able to withstand high load and large movement
- Be able to withstand large rotational angle
- Good anti-corrosive resistance securing the durability
- Be easy in installation and maintenance
4. INSTALLATION INSTRUCTIONS