WVA number
Encyclopedia
WVA numbers are a reference and assignment system for brake lining
s, clutch
facings, brake shoes
and other friction
materials which will especially be used in road vehicle
s but also in mechanical engineering. The WVA numbering system has been developed by the "VRI-Verband der Reibbelagindustrie" (Federation of Friction Industry), Cologne
/ Germany
. The VRI is the German Federation of Friction Industry and a member of FEMFM - Federation of European Manufacturers of Friction Materials.
Taking the dimensionally determined parameters of the friction materials into account the system assigns the differently dimensioned linings to the respective areas of application and use and accordingly offers a basis for the cooperation and for the exchange of information between manufacturers, distributors and customers.
Brake lining
Brake linings are the consumable surfaces in brake systems, such as drum brakes and disc brakes used in transport vehicles.-History:Brake linings were invented by Bertha Benz during her historic first long distance car trip in the world in August 1888.-Structure and function:Brake linings are...
s, clutch
Clutch
A clutch is a mechanical device which provides for the transmission of power from one component to another...
facings, brake shoes
Brake shoe
A brake shoe is the part of a braking system which carries the brake lining in the drum brakes used on automobiles, or the brake block in train brakes and bicycle brakes.-Automobile drum brake:...
and other friction
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and/or material elements sliding against each other. There are several types of friction:...
materials which will especially be used in road vehicle
Vehicle
A vehicle is a device that is designed or used to transport people or cargo. Most often vehicles are manufactured, such as bicycles, cars, motorcycles, trains, ships, boats, and aircraft....
s but also in mechanical engineering. The WVA numbering system has been developed by the "VRI-Verband der Reibbelagindustrie" (Federation of Friction Industry), Cologne
Cologne
Cologne is Germany's fourth-largest city , and is the largest city both in the Germany Federal State of North Rhine-Westphalia and within the Rhine-Ruhr Metropolitan Area, one of the major European metropolitan areas with more than ten million inhabitants.Cologne is located on both sides of the...
/ Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
. The VRI is the German Federation of Friction Industry and a member of FEMFM - Federation of European Manufacturers of Friction Materials.
Taking the dimensionally determined parameters of the friction materials into account the system assigns the differently dimensioned linings to the respective areas of application and use and accordingly offers a basis for the cooperation and for the exchange of information between manufacturers, distributors and customers.
Structure
WVA Numbers - Allocation Scheme:| Friction Lining Type | WVA-Numbers |
|---|---|
| Drum Brake Linings - Cars | 10000 to 14999 |
| Drum Brake Linings - Commercial Vehicles | 15000 to 19999 |
| Disc Brake Pads - Cars | 20000 to 25999 |
| Shoe Assemblies | 26000 to 27999 |
| Disc Brake Pads - Commercial Vehicles | 28000 to 29999 |
| Clutch Facings | 30000 to 34999 |
| Friction Plates | 35000 to 37999 |