CON-SERV, INC
CON-SERV, INC
Airport Industrial Park
685 Aviation BLVD.
Georgetown, SC 29440

Phone: 843.546.1044
Toll Free: 800.541.1044
Email: SALES@CON-SERVINC.COM
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The following formula has proven successful in calculating the thickness of the preformed fabric pad to accept a given rotation.
This formula allows for the internal stresses built up in the pad upon rotation.

PF
Thickness Required = ((W/2) x tan a) / "C"

    W = width of pad in rotation direction
    C = coefficient of friction

CON-SERV Inc recommends an 11 ga. plate be laminated every 2" in pads over 2" thick for strength and stability.

Physical Properties:

  • Durometer: 90 ± 5 (Shore A)
  • Compressive Strength: 10,000 psi max
  • Maximum Design Pressure: 1,500 psi
  • AASHTO To Grade
Unit of Measure

Specifications

Type

 N/A PF

Element

 N/A Upper

Max. Design Pressure (psi)

 N/A 1500

Durometer (Shore A)

 N/A 90

Tolerance of Durometer

 N/A ± 5

Max. Compressive Strength (psi)

 N/A 18000

Thickness Variables

 N/A
PSI PF CHART

Guide Specification

N/A The CON-SLIDE bearing guide specification for Type CSB Can be utilized as a guide for PTFE, preformed fabric pad-backed bearings.

The preformed fabric pad shall comply with the AASHTO specification DIV. II SECT. 18. The preformed fabric pads shall be composed of multiple layers of 8 oz. cotton duck impregnated and bound with high-quality natural rubber or of equivalent and equally suitable materials compressed into resilient pads of uniform thickness. The number of plies shall be such as to produce the specified thickness, after compression and vulcanizing. The finished pads shall withstand compression loads perpendicular to the plane of the laminations of not less than 10000 pounds per square inch without detrimental reduction in thickness or extrusion. The pad also shall comply with MI-C-882-E Military Specification and P.C.I. Prestressed Concrete Design Manual.