RJ Watson Disktron Bearings have rotational capabilities in both the longitudinal and transverse directions and may be designed for seismic and non-seismic applications

RJ Watson designs and manufactures custom disc bearings with the ability to withstand vertical loads ranging from 10 to 14,000 kips (44.5 kN – 62,275 kN).  RJ Watson structural bearing devices have rotational capabilities in both the longitudinal and transverse directions. Thousands of RJ Watson bridge bearings have been tested and installed worldwide.

The Disktron Bearing is composed of four fundamental components; the load plates, the upper and lower bearing plates, the shear resisting mechanism (SRM) and a Polytron elastomeric disc.  The Polytron disc material is a polyurethane blend conforming to AASHTO Specifications and tested at MCEER. The Disktron Bearing is a low profile alternative to the pot bearing and has a longer service life.

RJ Watson Disktron Bearings were in installed on the prestigious Hoover Dam Bypass Bridge

 

 

Four Basic Types of Disktron Bearings may be customized for a multitude of applications

Unidirectional

Disktron Bearings have rotational capabilities in both the longitudinal and transverse directions.

Multidirectional

Multidirectional bearings allow rotation and displacement in any direction

Fixed

Fixed bearings allow rotation in any direction and prevent lateral displacement

Flexible Guided

Flexible guided bridge bearings for curved girder bridges

The Disktron Bearing is composed of four fundamental components; the load plates, the upper and lower bearing plates, the shear resisting mechanism (SRM) and a Polytron elastomeric disc

Features

  • The Polytron Disc (rotational element) is not confined, meaning that it can accommodate large, low load rotations, which can be experienced temporarily during erection.
  • Vertical load capacity is up to 15,000 kips or more
  • Can accommodate all live to dead load ratios
  • Rotation capacity in excess of 0.04 radians
  • Minimum horizontal load capacity is 10% of the vertical load; much higher loads can be accommodated
  • A high allowable compressive stress on the Polytron Disc results in a more compact bearing design
  • Separate sole and masonry plates can be attached to bearing plates by bolted, welded or recessed connections

Installation Video

Watch this video of the bearing replacement project on Zilwaukee Bridge in Michigan

RJ Watson provides at no cost or obligation engineering proposal on any project where you are interested in evaluating the benefits of the RJ Watson product line

No Cost/No Obligation Estimates

Our staff of experienced engineers will assist you with your proposals and will work within your tight time constraints.

RJ Watson’s in house operations include a fabrication shop with overhead cranes, heavy lifting capacities, certified welders, weld positioners, media blasting, machine shop and state of the art testing facility.

RJ Watson is located outside of Buffalo, NY and  has a state of the art 70,000 square foot facility for engineering, fabrication and manufacturing of bearings, joints and other structural devices

Project Updates

Corning Museum of Glass North Wing Addition

Corning Museum of Glass North Wing Addition

December 5, 2018

Franklinville Bridge, NY Rehab

Franklinville Bridge, NY Rehab

December 3, 2018

Sellwood Bridge – Portland, OR

Sellwood Bridge – Portland, OR

December 1, 2018

Kentucky & Indiana Terminal Bridge over Ohio River

Kentucky & Indiana Terminal Bridge over Ohio River

November 30, 2018

Dublin Pedestrian Bridge Disktron Bearings

Dublin Pedestrian Bridge Disktron Bearings

November 29, 2018

R. J. Watson Bearings support award winning Dulles Corridor Metrorail Viaduct

R. J. Watson Bearings support award winning Dulles Corridor Metrorail Viaduct

November 29, 2018

I-35W Saint Anthony Falls Bridge

I-35W Saint Anthony Falls Bridge

November 28, 2018

Hoover Dam Bypass Bridge

Hoover Dam Bypass Bridge

November 28, 2018

Tri-Met Bridge – Portland, OR

Tri-Met Bridge – Portland, OR

November 28, 2018

West 7th Street Bridge – Fort Worth, TX

West 7th Street Bridge – Fort Worth, TX

November 28, 2018

US301 & SR1 Interchange – Delaware

US301 & SR1 Interchange – Delaware

November 28, 2018

Disktron Bearings used on Innovative U-Girder Bridge

Disktron Bearings used on Innovative U-Girder Bridge

November 28, 2018

Disktron Bearings Utilized on the I-4 Ultimate Project

Disktron Bearings Utilized on the I-4 Ultimate Project

November 28, 2018

Sarah Mildred Long Bridge

Sarah Mildred Long Bridge

November 28, 2018

Jonathan Hulton Memorial Bridge – Pittsburgh, PA

Jonathan Hulton Memorial Bridge – Pittsburgh, PA

November 28, 2018