Driveline components transmit and control power and motion. As simple as this sounds, it is necessary on every machine. Brakes are basically a clutch with one member held stationary. The objective with both classes of hardware is to take two shafts rotating independently at different speeds and bring them into partial or total engagement. Connecting shafts can be by direct mechanical lockup, mechanical friction, electromagnetic action, or hydraulic forces. Among the electromagnetic types, actual engagement may be mechanical, with electrical components used only for actuation. Mechanical clutches generally are the simplest and normally used where an operator can actuate the clutch manually. Vehicles, for example, typically use mechanical clutches. Electric clutches are generally used where remote actuation is required (as on automatic machinery) or where special slip characteristics are required. Hydraulic or fluid couplings are used in place of mechanical clutches where exceptionally smooth engagement is required or where it is desired to have the clutch automatically pick up a load with an increase in input speed. They are also used where constant engagement and disengagement would result in too much wear and maintenance. Clutches rely on mechanical or electromagnetic action for torque transmission. However, they are usually identified by their mode of actuation: mechanical, electrical, pneumatic, or hydraulic. Although the four operating modes are considered highly competitive, each mode actually is restricted to a fairly well-defined area of application. Within each area, one method provides definite advantages in terms of cost, response time, and torque transmission. is the simplest mode, and mechanically actuated clutches generally are the least expensive. Mechanical clutches can be actuated through hand or foot-operated linkages or cables, which provide a "feel" for the amount of engagement. Small mechanical clutches are actuated directly with cams or levers, while larger clutches are operated through compound linkages. Usually, mechanical
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Mechanical clutches are assemblies consisting of elements for the connection and disconnection of shafts (clutch) in equipment drives.
Hydraulic Brake and Clutch Assemblies
Hydraulic brake and clutch assemblies consists of elements for both the connection and disconnection of shafts (clutch) and for the slowing or stopping of shafts (brake) in equipment drives.
Mechanical Brake and Clutch Assemblies
Mechanical brake and clutch assemblies consist of elements for both the connection and disconnection of shafts (clutch) and for the slowing or stopping of shafts (brake) in equipment drives.
Electrical clutches are assemblies consisting of elements for the connection and disconnection of shafts (clutch) in equipment drives.
Pneumatic Brake and Clutch Assemblies
Pneumatic brake and clutch assemblies consist of elements for both the connection and disconnection of shafts (clutch) and for the slowing or stopping of shafts (brake) in equipment drives.
Topics of Interest
Friction and Magnetism: The Basics of EM Clutches and Brakes Electromagnetic clutches and brakes seem simple, but complex variations fit them to multiple applications. • Electromagnetic clutches...
Hysteresis uses noncontact magnetic fields to apply resistance or engage load rotation. Torque loading may be applied independently of shaft speed. The magnetic torque is frictionless because the...
Electromagnetic clutch/brakes from Ogura Industrial Corp., Somerset, N.J., start and stop cutting blades in GPS-guided lawn mowers. A user programs a McMurtry robotic mower. The mower blade-drive...
New developments in the field of the dual or double clutch transmission bring new challenges for the application of central disengagement systems! Central disengagement systems are well known when it...
Clutches and brakes are among the most critical elements of many motion control systems. The
two most widely used types of clutches are electro mechanical friction and wrapped spring.
When selecting a...