Composite friction disc

FTL207 composite friction material

FTL207 is a medium coefficient carbon composite friction material which is bonded on to an optional glass fibre reinforced supporting layer. The glass-fibre reinforced supporting layer provides higher load capacity and strength. The friction layer contains a combination of different solid lubricants fibres and fillers which offers smooth operation and guarantees a noise free solution.

Read the Data Sheet

Published values are a starting point. Selection depends on the complete application.

FTL207 technical data sheet

As published by FTL.

Product referenceFTL-207
ManufacturerFriction Technology Ltd
Intended applicationWind turbine yaw-brake applications
Material familyCarbon composite friction material, bonded to an optional glass-fibre reinforced supporting layer
Coefficient classificationMedium coefficient
Friction coefficient0.30 to 0.40
Density (carbon composite)1.35 g/cm³
Max. dynamic load25 N/mm²
Max. static load50 N/mm²
Wear rate10 mm³/kWh
Max. sliding velocity15 mm/s
Temperature range−40 to 140 °C
Mating surfaceFine-grained pearlitic cast iron or cold rolled steel, Brinell hardness >160HB, counter-surface roughness <3.2µm

FTL207 is a medium coefficient carbon composite friction material which is bonded on to an optional glass fibre reinforced supporting layer. The glass-fibre reinforced supporting layer provides higher load capacity and strength. The friction layer contains a combination of different solid lubricants fibres and fillers which offers smooth operation and guarantees a noise free solution.

FTL207 has a low rate of wear and a consistent coefficient of friction across a range of operating pressures.

Applications

  • FTL207 has been specifically formulated and optimised for use in wind turbine yaw systems.
  • Wear Rate:
  • FTL207 offers excellent wear when compared to standard moulded organic friction material.
  • The wear rate can vary depending on braking force, sliding speed, sliding distance, frequency of movement, hardness & surface finish of the mating material. Environmental conditions should also be taken in to consideration.

The full FTL207 sheet

Technical data, recommended operating range, test conditions, mating surface, bonding and the performance curves, as published by FTL.

These are summary values. Tell FTL what the material is for and the full specification follows.

NOTE   Summary values are indicative and must be read with the full document and its stated test conditions.

Engineering capability backed by controlled manufacture and inspection

Case example: connecting engineering, material and manufacture.

SDTS approached FTL after the original aircraft brake pad was no longer available. FTL redesigned the pad, established a replacement material route and manufactured a component aligned with the stated aeronautical technical requirements, supporting SDTS's modification-certification process.

“To continue flying our aircraft, we approached FTL to find replacement solutions for our brake pad problem, as the original part was no longer available on the market. The quality of our discussions, from both a technical and commercial standpoint, FTL's responsiveness in redesigning the pad with a material that meets aeronautical technical requirements, and their ability to adapt to our aeronautical environment allowed us to certify a modification applicable to our aircraft. The quality of the manufactured product is remarkable. Thanks to FTL, we can continue to fly, land, and brake safely.”

Olivier Moulin SDTS

Established in 2003, FTL's integrated chain is supported by controlled manufacture, inspection and traceability, and held to recognised quality, environmental, safety and supply-chain standards.

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The SDTS example demonstrates linked engineering, material and manufacturing support.

Bring us the application, drawing or performance problem.

Tell Friction Technology what the component or friction system needs to do. A short initial brief is enough to start. The right technical and commercial people then join the conversation to understand the operating conditions, available information and required next step.

Optional drawing or specification upload. No long technical questionnaire at this stage.