Composite Materials For Sliding Surfaces CM1
Composite materials are widely used in various engineering applications due to their ability to combine the properties of different materials to achieve superior performance. When it comes to sliding surfaces, such as bearings, seals, or wear-resistant components, a three-layer composite material (CM1) can be designed to optimize properties like low friction, high wear resistance, and good load-bearing capacity.
Three-Layer Composite Material (CM1) for Sliding Surfaces
A typical three-layer composite material for sliding surfaces consists of the following layers:
Top Layer (Wear-Resistant Layer):
Material: Polymers (e.g., PTFE, PEEK, UHMWPE), ceramics, or metal alloys.
Function: Provides low friction and high wear resistance. This layer is in direct contact with the sliding counterpart and must withstand abrasive and adhesive wear.
Properties: Low coefficient of friction, high hardness, and good thermal stability.
Intermediate Layer (Load-Bearing Layer):
Material: Metal (e.g., bronze, steel, or aluminum) or fiber-reinforced polymers.
Function: Distributes the load evenly and provides mechanical strength. This layer supports the top layer and prevents deformation under load.
Properties: High strength, good fatigue resistance, and thermal conductivity.
Bottom Layer (Backing Layer):
Material: Steel, aluminum, or other structural metals.
Function: Provides structural integrity and facilitates attachment to the component (e.g., housing or shaft). This layer ensures the composite material can be securely mounted and withstands operational stresses.
Properties: High stiffness, good machinability, and corrosion resistance.
Example of CM1 Composition
Layer Material Options Thickness (Typical) Key Properties
Top Layer PTFE, PEEK, UHMWPE, or ceramic coatings 0.1–0.5 mm Low friction, wear resistance
Intermediate Layer Bronze, steel, or fiber-reinforced polymers 1–3 mm Load distribution, strength, thermal conductivity
Bottom Layer Steel or aluminum 2–5 mm Structural support, machinability
Advantages of Three-Layer Composite Materials for Sliding Surfaces
Enhanced Performance: Combines the benefits of low friction, wear resistance, and high load capacity.
Customizability: Layers can be tailored to specific application requirements.
Durability: Resists wear, fatigue, and deformation under operational conditions.
Cost-Effectiveness: Reduces maintenance and replacement costs due to improved longevity.
Applications
Bearings: Plain bearings, thrust washers, and bushings.
Seals: Rotary and linear seals in hydraulic and pneumatic systems.
Wear Plates: Sliding surfaces in machinery and equipment.
Automotive Components: Brake pads, clutch plates, and suspension parts.
Design Considerations
Operating Conditions: Temperature, load, speed, and environment (e.g., presence of lubricants or contaminants).
Material Compatibility: Ensure the top layer is compatible with the sliding counterpart material.
Manufacturing Process: Techniques like sintering, bonding, or coating must be selected based on the materials used.
Cost: Balance performance requirements with material and manufacturing costs.
By carefully selecting and combining materials for each layer, CM1 can be optimized for specific sliding surface applications, ensuring reliable and efficient performance.
Three-layer Composite Materials for Sliding Surfaces, designated as CM1, are advanced materials specifically designed to optimize the performance of sliding surfaces in various industrial applications. These materials consist of three distinct layers, each tailored to provide specific properties and functions.
The base layer provides the foundation for the composite, offering strength and stability. The intermediate layer, often made of a high-performance material, acts as a wear-resistant barrier, protecting the surface from abrasion and wear. The top layer, typically a smooth and lubricious material, ensures smooth sliding action and reduced friction.
The combination of these three layers creates a material that offers exceptional wear resistance, durability, and smooth operation. CM1 is particularly suitable for applications where sliding surfaces are subject to high loads, speeds, or abrasive conditions. Wh used in machinery, pumps, or other industrial equipment, CM1 ensures reliable and long-lasting performance.
Composite Materials for Sliding Surfaces
Buy Dry Lubricant Plain Bearings - metric sizes or inch size different thickness
All Composite Bushing Bearings Manufacturing Is Consistent Quality - Download Our Catalog! Production and Supply - Wide Range of Industrial, Strip & Sheet Globally.
Composite Material CM1
This is a composite material consisting of three layers; a bronze
backing strip and a sintered interlocking porous matrix,
impregnated and overlaid with a / lead mixture.
Guide Bearing - special sliding material composite material
Bearing Manufacturing Company - Precise Measuring Equipment

Bushing Material, Composite Material CM1, metal-polymer self-lubricating plain bearings metal-polymer self-lubricating plain bearings. A unique, composite bearing material, a composite strip material made up of three layers: bronze, porous bronze, and : it is also available, on special order, with a non-indented bearing strip surface, available thickness: 1.0mm, 1.5mm, 2.0mm,2.5mm, Flat Strip Material Metric Size,
STEEL BACKED LINED
Bridge bearings
Bridge Bearings Manufacturers, Traders, Suppliers
Due to the varying horizontal and vertical loads to which they are subjected, bridges must be supported by both sliding and swivelling bearings.
bearing strip material
Steel-Backed -Lined Sleeve Bearings ...
Steel-Backed Lined Sleeve Bearings, METRIC Are Used For Heavy Load, Moderate Speed Or Light Load, High Speed Applications.
Custom Made Plain/Sliding Bearings, manufacture of bearing bushes, flanged bushes, half-shells, and more
composite strip material made up of three layers: steel-backed or bronze backed, porous bronze, and acetal resin polymer:
Properties of Composite Materials for Secondary Sliding Surfaces
B.1 Composite Material CM1
This is a composite material consisting of three layers; a bronze backing strip and a sintered
interlocking porous matrix, impregnated and overlaid with a lead mixture.
The material shall conform to the characteristics listed in Table B.1 In addition, the condition of the material and its surface finish shall be checked visually.
Table B.1 Characteristics of CM1
Bronze backing material: CuSn 6
composition by mass Sn 5 to 7.50
P 0.35
Pb 0.10
Fe 0.10
Zn +Ni 0.50 %
others 0.30
Remainder Cu
(2.1 0.15) mm thickness
hardness HB -ISO 6506 (all parts) material: CuSn 10
Composition by mass
80 to 160
Bronze interlayer
Sn 10 to 12
Pb 1.00
P 0.25 to 0.4 %
Si 0.17
Fe 0.15
Ni 0.15
others 0.50
25 saturation with
-
Pb
thickness
.15
0.25 0.0 mm
Composite material material: + Pb Pb 49% to 62%,
Surface layer composition by mass remainder
0.01 +0.02
0.0 mm
Thickness
2578 2048 0.015 mm total thickness
Overlay adhesion-ISO 2409
minimum GT2
B.2 Composite Material CM2
The material shall consist of a flexible metal mesh which is sintered into a compound
with the bearing or sliding surface having the thicker coat. The metal mesh shall be CuSn6 stabilized mesh from 0.25 mm diameter wires which are
linked at intersections and which has a thickness after calendaring of approximately 0.4 mm.
The mesh count in warp and weft direction shall be 16 t 1 per 10 mm.
The compound shall be with 30 percent t 2 percent filler content, consisting of
glass fibers and graphite.
The material is to conform to the characteristics listed in Table B.2.
In addition, the condition of the material and its surface finish shall be checked visually.
Table B.2 Characteristic of CM2
Density 4100 kg/m to 4400 kg/m
Tensile Strength >45 MPa
Elongation 10 %
Thickness (0.48t 0.02) mm
Overlay adhesion minimum GT2
ISO 2409
Cylindrical bushes Flanged bushes Thrust washers Flanged washers Strips

Characteristics

Strips Material composition
Strips are available in steel backed or bronze backed:
Standard Products Sleeve Bearings Inch and Metric Sizes Inch Thrust Washers Inch and Metric Sizes Flanged Bearings Inch and Metric Sizes available Flat Strip
Structure
Flat Strip Material Metric Size

Technical Data
Start your project With an Application Engineer