Bond Systems
Understanding grinding wheel bond types
The bond is the material that holds abrasive grains together in a grinding wheel. Resin, vitrified, and rubber are three common bond systems, each suited to different grinding conditions.
Resin Bond
Resin bond wheels offer flexible cutting action and good stock removal. They are commonly used for cutting discs, grinding discs, surface finish applications, and operations where reduced edge chipping is important. Resin bond wheels can be formulated for a range of hardness grades and are widely used in workshop and production environments where a balance of cutting performance and surface finish is needed.
Vitrified Bond
Vitrified bond wheels provide excellent profile retention, high heat resistance, and open structure possibilities. They are the preferred choice for precision grinding applications including surface grinding, cylindrical grinding, bearing steel grinding, and hardened steel grinding where form holding and free-cutting performance are important. Vitrified bonds are generally easy to dress and maintain consistent grinding behavior through production runs.
Rubber Bond
Rubber bond wheels are used for finishing operations, regulating wheels in centerless grinding, and applications requiring smoother surface finishes. The rubber bond provides elasticity and a polishing-like cutting action. Rubber bond wheels are also used in thin cutoff wheels and applications where a flexible, controlled grinding feel is needed.