Pot Bearing selection and procurement should follow a defined project requirement and a controlled acceptance record. A quotation can be accurate against the wrong drawing revision. The purchasing team therefore needs a controlled technical baseline before it compares delivery dates or commercial terms.

Pot Bearing: role and application

A pot bearing uses a confined elastomeric element to accommodate rotation under compression. Sliding and guidance components, when provided, define the permitted horizontal movement of the complete assembly.

The pot bearing review should connect the purchased item to a bearing schedule linked to support positions. The engineering objective is the intended load path, rotation and movement function. Keep the product identity and the application requirement visible throughout the order.

Pot bearing vs elastomeric bearing

A pot bearing accommodates rotation through a confined elastomeric element, and may include a separate sliding interface. A laminated elastomeric bearing accommodates rotation and translation through deformation of its rubber layers. Compare reaction, movement, available height and maintenance access for the complete assembly. Neither option is automatically preferable for every large or small bridge. The designer should confirm the function and demand envelope before procurement compares the conforming options.

List every interface that affects fit or function. Mark the dimensions controlled by the designer and those proposed by the supplier. Resolve contradictions between the schedule, section and detail instead of letting the workshop select whichever value is easiest to manufacture.

For pot bearing, the important interface is the bearing arrangement. In this review, focus on the unit mark, orientation, contact edges and initial offset. Record any departure from the agreed arrangement before the next construction stage makes correction difficult.

Project inputs and interfaces

The product inquiry should state reaction envelope, rotation, movement function, seal arrangement, sliding interface, guides and anchor layout. Separate confirmed project requirements from information still awaiting the responsible designer. Leave missing values as open questions instead of copying unrelated catalog ratings.

Use load and movement envelope as the starting point for the pot bearing specification. Then identify the receiving interface, construction stage and inspection access. Assign a responsible person to resolve each missing input before the production release.

Compare the available approaches

For this application, compare options against the same bearing arrangement. A spherical assembly accommodates rotation at a curved interface, while a pot assembly uses a confined elastomer. Compare complete performance evidence and interfaces rather than selecting by name.

Inspection evidence and acceptance

Request a marked drawing showing the revision, units, material designation, tolerances and installation orientation. A signed approval should identify any remaining exclusions. Keep the original query beside the final answer so that a later revision does not silently reopen a settled issue.

One failure mode to investigate is that damaged seals, contamination or incorrect restraints may obstruct the intended movement despite an acceptable external appearance. For the pot bearing acceptance record, confirm fixed, guided or free function and keep transport locking instructions with the installation record. A generic report or an unlocated photograph cannot resolve a missing project-specific observation.

Site coordination and acceptance

Use an interface review with the designer, site team and supplier. Check the least accessible feature first, then confirm the part can be installed and inspected in the planned construction sequence. Freeze the approved revision before production starts.

Before releasing pot bearing work, reconcile the physical item with its identification and approved drawing. Pay particular attention to the unit mark, orientation, contact edges and initial offset. If an unplanned change affects sealing, load transfer, geometry or movement, obtain the relevant technical disposition before proceeding.

Records for maintenance and handover

Keep the pot bearing record linked to its installed location. Retain the accepted drawing, batch identity, inspection results and any approved deviations. Include enough context to distinguish the original condition from later changes, without presenting a visual inspection as a complete performance test.

For independent background, consult the FHWA elastomeric bearing inspection protocol. This is an archived inspection reference and should be read with the project requirements.

Prepare your project inquiry

To discuss pot bearing requirements with Hebei Kunshuo Rubber & Plastic, send your drawing, quantities, load and movement envelope, delivery destination and required inspection records. Start with the Pot Bearing information and use the inquiry form below to identify the exact application.

Ask the team to confirm the proposed pot bearing configuration, available material options and any exceptions in writing. Where a special grade or qualified system is required, confirm availability and supporting evidence before treating a general product page as an offer. You can also contact Kunshuo with the current drawing revision.

Frequently asked questions