CV Brake linings


Asbestos Free

After an intensive and long period of development the new generation of asbestos free materials is now widely available. There was considerable difficulty in finding materials to replace asbestos - without huge price penalties. The materials now developed are technically superior to most asbestos based materials. Asbestos free materials can now give better wear along with improved stability at high temperature. The benefits gained however, depends on the temperature bands, which are used during the operation of the vehicles brakes. A typical comparison of asbestos based and asbestos free material on the following graph shows the degree of improved wear experienced.

Comparison of Lining Wear Rates

MOBREC ASBESTOS FREE MATERIALS A medium to high performance material that has found quick acceptability. It delivers outstanding performance and stability under all conditions.


Correct fitting

Rivets should be fitted and clenched in a planned sequence, commencing at the centre of the shoe and working to a pattern towards the ends of the shoe.

When using a riveting machine, the actual air pressures used have to be adjusted in the light of experience to accommodate variation of rivet diameter and materials, but will typically be between 4 and 6.2 bar (45 - 90 p.s.i).

Once fitted, the rivet shank should have expanded to fill the hole in the shoe platform. The rivet hole drilling in the lining however is designed to be slightly oversize in order to avoid this expansion of rivet shank stressing the lining, the clamping of the lining being achieved by trapping it between the shoe and the rivet head. To this end a final inspection should be carried out to ensure that not only are the rivet ends rolled over correctly and neatly without cracking but that the whole clamped assembly is tight and without any significant gaps between shoe and lining. (Rivet tightness can be assessed by lightly tapping the installed rivets with an inspection hammer and the gaps by feeler gauge: These gaps should be zero around the rivets between lining and shoe and no more than 0.015mm (0.006") elsewhere.

Range list

We have over 300 BFMC (WVA Ref) of ready linings and over 200 reference unfinished Billets of commercial linings in stock. We can also supply any size of rivets for the the above range. Please feel free to ask us for our complete range of linings and rivets.

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