Expanded tang commutators are the preferred choice for medium volume, moderate sized motors typically dependent on mica molded commutators. The tang diameters are expanded outboard to allow a larger wire connection, while using a smaller brush track diameter.
- Commonly considered for motor designs that normally utilize mica molded commutators between 25mm and 75mm brush track diameter
- Features all the characteristics of a standard tang commutator plus the benefit of an expanded riser diameter
- Tangs supported by phenolic to facilitate fusing
- Phenolic strengthens the tang and reduces possibility of bar-to-bar shorts
- Tangs outboard from brush diameter allowing easier winding with larger wire gauge
- Enlarged winding diameter provides more clearance between tangs, while keeping the brush track diameter and brush holder dimensions at minimum levels for small motor designs
