Hinge Hinge A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint. There are many types of door hinges. The main types include: Other types include: Since at least medieval times there have been
English saddle items. Modern endurance saddle manufacturers have been innovative in methods to lighten weight and provide additional comfort for the horse, and several of these techniques have gone on to influence other saddle types. The panels are stuffed with different types of material, all designed to spread pressure evenly and disperse sweat. Most endurance saddles may have extended panels (called "fans" or "blazers"), which increase bearing area. Others may have "floating" panels, which are particularly useful since endurance riders often ride with their seat out of the saddle (releasing pressure from the back, but increasing the amount felt on the stirrup