P54 Wear Strips | Kamatics | Kaman Specialty Bearings

P54 Wear Strip

Kamatics P54 Wear StripKamatics self-lubricating P54 Wear Strips are designed for Aerospace bearing applications where standard off-the-shelf wear resistant plastics fall short in performance. P54 Wear Strip can be used where impact resistance is required, under edge loading, in heavy abrasion applications, and where gross amounts of contaminants can be expected. P54 Wear Strip can operate against rough surfaces and against soft materials such as aluminum or composites.

P54 wear strips are available in four standard thickness, and can be cut in various strips washers, and custom shapes. The material grades:

P54 Wear Strip Grade Product Description Nominal Thickness
020 Light Duty 0.020” (0.5mm)
032 Medium Duty 0.032” (0.8mm)
060 Heavy Duty 0.060” (1.5mm)
120 Plate Stock 0.120” (3mm)

 

Physical properties of P54 wear strips are largely dependent upon the adhesive bond integrity, the substrate material, and surface preparation of the substrate. The below values are based on the wear strip only:

Operating Temperature -65°F to 250°F -54°C to 120°C
Density 0.0466 lb/in3 1.29 g/cc
Hardness 80 Shore D  
Max Static Bearing Load 50,000 psi 345 MPa
Max Dynamic Bearing Load 20,000 psi 138 MPa
Compressive Modulus 150,000 psi 1,034 MPa

 

P54 Wear Strip comes with a removable woven nylon peel-ply on one surface to protect the bonding surface from dirt and debris. With the peel-ply removed and the back surface exposed, the P54 Wear Strip is prepared for bonding onto a suitable surface. A room-temperature curing structural epoxy adhesive is recommended for bonding.

The following adhesives show good compatibility with the chemicals listed above: Hysol EA9460, EA9309, EA9394, and EA9396 (Loctite), Scotchweld 460 (3M Co.), Araldite 2011 (Vantico). Follow the manufacturer's suggested procedures for maximum adhesion to the mating surface.

For standard cut strip dimension parts, Kamatics uses the below part numbering system.

KWP ___ ___ ___ ___ __ ___ ___ ___ __ ___ ___ ___
P54 Wear Strip Unit of Measure Wear Strip Grade   Width   Length

 

Unit of Measure = BLANK for English units
M for metric units
Wear Strip Grade = See Wear Strip Grade table above
Width =

English units: width in 1/8" increments up to 12", example 024 = 3" wide
Metric units: width in 5mm increments up to 300mm, example 020 = 100mm wide

Length = English units: length in 1/4" increments up to 48", example 096 = 24" long
Metric units: length in 10mm increments up to 1200mm, example 050 = 500mm long

 

P54 wear strips are not affected by the following chemicals and contaminants: Phosphate Ester Hydraulic Fluid (Skydrol), MIL-T-5624 Turbine Fuel Grade JP-4, MIL-L-7808 Lubricating Oil, MIL-H-5606 Hydraulic Oil, MIL-A-8243 Anti-Icing Fluid, MIL-H-83282 Hydraulic Fluid, Fresh Water, Salt Water.

The Aerospace wear strip materials performed very well in independent laboratory testing. The methods used for the testing were MIL-STD-810F Environmental Engineering Considerations and Telecordia General Requirements. When subjected to tests for High and Low Temperatures, Solar Radiation, Blowing Rain, Fungus, Humidity, Salt Fog, Blowing Dust, Functional Shock, and Ozone Resistance, the Kamatics wear strip material test samples showed no signs of damage or degradation.

Kamatics Self-lubricating P54 wear strips completely conform to the requirements defined for self-lubricating wear strip materials in material specification DMS 2496.