CONTRIBUTED INDUSTRY SERIES
The following is the fifth and final piece of a multi-part contributed series from NRS Brakes: a NUCAP company examining the role of the steel backing plate in brake pad durability. The technical positions expressed are the author’s. The BRAKE Report publishes contributed perspectives from across the brake and friction industry and welcomes responses from other manufacturers.
Catch up: Introduction | Part One | Part Two | Part Three | Part Four
By NRS Brakes: a NUCAP company
Disclosure: NRS Brakes is a sponsor of The BRAKE Report. This series was contributed as editorial and was not paid placement.
Brake pads are consumable products.
Their friction material is engineered to wear away gradually throughout thousands of braking events.
That is normal.
What should not be consumed before the friction is the steel foundation supporting it.
This final principle summarizes everything discussed throughout this series:
The steel must outlast the friction for the entire life of the brake pad.
The ideal brake pad reaches replacement thickness because the friction material has completed its intended service life—not because corrosion, attachment failure, distortion, shim loss, or structural degradation forced premature replacement.
When engineers design a brake pad, every component should support that objective:
- The backing plate should resist corrosion.
- The attachment system should retain friction securely.
- The shim should remain functional.
- The dimensions should remain stable.
- The load path should remain intact.
- The assembly should continue functioning as designed from the first stop to the last.
The brake pad is not merely a friction block attached to steel.
It is an engineered assembly in which every component depends on the long-term integrity of the backing plate.
For installers, the takeaway is simple: evaluate more than friction material.
For distributors and jobbers: consider long-term durability, not just appearance.
For manufacturers: design for the complete service life of the brake pad, not merely the beginning of it.
The friction material stops the vehicle.
The steel enables the friction to do its job.
And if the steel cannot survive longer than the friction material, the brake pad has failed its most fundamental engineering requirement.
The brake industry has spent decades discussing friction technology. Perhaps it is time to give equal attention to the component that supports it all—the steel backing plate.
About NRS Brakes
NRS Brakes manufactures brake pads built around its NRS (NUCAP Retention System) technology, which uses hooked, galvanized steel backing plates to retain friction material through mechanical attachment rather than adhesive. Its pads also feature a noise-dampening piston insert. The approach underlies the FMSI “Z” designation for OEM-specified mechanical fusion. NRS Brakes is based in Toronto, Ontario.
Subscribe to The BRAKE Report. Get free sample chapters.
