Welcome to www.pretread.com, home page for neoprene bridge bearings, POT BEARINGS, fixed pot bearings, sliding guided pot bearings, free sliding pot

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http://pretread.blogspot.com/

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Welcome to Pretread.com, your reliable source for neoprene bridge bearing, bearing pads, laminated elastomeric bearing, elastomeric bearing,..POT BEARINGS, fixed pot bearings, sliding guided pot bearings and free sliding pot bearing.. and moulded rubber products, precure tread rubber, molded rubber products, rubber gasket, and rubber marine fenders.

Our home page and connected links provide information on a wide range of rubber products.
Pretread.com is direct manufacturer of Neoprene Bridge Bearings, Laminate Elastomeric Bearings and Pot Bearings.

We at pretread.com, manufacture neoprene bridge bearings, POT BEARINGS,- including fixed pot bearings, sliding guided pot bearings and free sliding pot bearing, to AASHTO / BS / DIN specifications for the first time in Middle East U.A.E.

POT BEARINGS, including fixed pot bearings, sliding guided pot bearings and free sliding pot bearings are manufactured for the FIRST TIME in Middle East from our plant in UAE.
Design Calculations for Pot Bearings.

Pot bearing Design calculations are based on equation 14.7.4.7-2 of AASHTO LRFD is followed and a typical calculation for a pot bearing for Vertical load of 1100 kN with 150 kN lateral laod is given here.



Click to view a typical calculation spread sheet on Pot bearing design for Vertical load of 1100 kN with 150 kN lateral laod is given here.

Sliding bearings - Fixed pot bearing . Please click to enlarge these pic and return to this page.


Sliding pot bearing Assembled

Fixed Pot bearing Assembled

Basic elements of a Pot Bearing

The basic elements of a Pot Bearing consists of a shallow cylinder, known as pot, an elastomeric pad known as disc, a single or set of sealing rings, piston and sliding surfaces. Masonry plates and base plates are common for the installation of pot bearings, as they allow attachment of the bearings and increase the support area on the pier and abutment. Pot bearings are fixed against all translation unless they are used with a ptfe sliding surface.

Pot and Piston

The pot bearings are always manufactured from Structural Carbon steel and pistons from Stainless Steel. The sealing rings are brass rings which being the most critical component of a pot bearings for its long term services which are proprietary system followed by us.

Elastomeric Disc

In Pot bearings vertical load is carried through piston of pot bearing and is resisted by compressive stress in elastomeric pad. The pad is deformable but almost incompressible and is often idealized as be having hydrostatically but in practical exerts shear stiffness.

External Protective Rubber Dust Seals

We offer proprietary external dust proof protective seals on all of our pot bearings, resisting entry of debris like dirt, water, etc which can damage elastomeric pad and brass sealing rings, providing substantial benefits.



Sliding surfaces

The sliding surfaces in all our pot bearings will be dimpled ptfe - teflon to Stainless Steel.

Types of Pot Bearings manufactured by us.

Fixed pot bearings.

Guided Sliding pot bearings.

Free Sliding pot bearings.

Advantages of Pot bearings

Pot bearings are usually recommended when bearing rotations are large, compact designs and long term servesability are required.

Pot bearings provides longer service life compared to elastomeric bearings.
Smaller in size compared to elastomeric bearings.

Longer maintenance time.

Pot bearings can sustain many cycles of very small and large rotations.
Economical repair as replacement of elastomer disc only.

Does not get effected by external atmospheric correction.

Additional fixtures for Pot Bearings.

We also offer additional fixtures for installation of pot bearings like temporary bearings, ptfe sliding bearings, studs, base plates, masonry plates with welded studs etc and will be happy to receive your complete requirements.

Our quality assurance.

Under one roof with stringent quality control, with technical and marketing support from our Technical Partner we manufacture neoprene bridge bearings, laminate elastomeric bearings, bearing pads, pot bearings, PTFE sliding bearing, etc to AASHTO / BS / DIN specifications.Pot bearings,POT Bearings,fixed pot bearings,sliding guided pot bearings,structural,free sliding pot bearings,fixed,sliding,bearing,Structural Bearings.

For all your requirements of:

Bridge Bearings
High Damping Rubber Bearing
Moulded Rubber Products
Extruded Rubber Products
Vulcanized Rubber Sheets
Dock Fenders
Precure Tyre Retreading System
Rubber Gasket
Rubber Linings

This website has a wealth of information on our product lines and general information on not only pot bearings, free sliding pot bearings,fixed pot bearings, POT BEARINGS, Structural Bearings, sliding guided pot bearings which we try to updated quite often. We hope you will find our site very informative and will contact us for further details and inquires.Click on below link, to obtain regular archive on our site.

CLICK TO VISIT OUR REGULAR ARCHIVE

Thank you very much for visiting us.


Bridge Bearing
Dock Fender
Extruded Products
Molded Products
Polymer selection chart
Rubber Gaskets
Rubber Products
Rubber Sheets
Laminated Bearings
Pot Bearings
Neoprene Properties
Neoprene PTFE Teflon Slide Pads.
Plain Bearings
PTFE Sliding Bearings
View an Installed Neoprene Bridge Bearing