An electromechanical actuator power drive unit for dynamic braking is provided, comprising an electric motor with a stator, a rotor that rotates with respect to the stator, and windings fixed to the stator. There is a control unit configured to supply a current to the windings. When the control unit is not supplying current to the windings, an electrical device allows current to flow through a parallel current path to the windings. The new current is generated by the interaction of a roller connected with a gear set to the rotor. The roller, and therefore the rotor, is urged in a rotational direction by the translational velocity of a load in contact with the roller. The new current generated by the rotating rotor flows in the opposite direction as the first current supplied by the power supply unit and creates a dynamic braking torque in the electric motor.

A braking device for a roller conveyor has at least one brake pad (40) for engagement with an outer circumference of at least one conveyor roller (60) of the roller conveyor. The braking device also has an eccentric shaft (20) with a first eccentric (24) for moving the brake pad (40) toward the conveyor roller (60) and away therefrom; and a stepping motor (10) for rotating the eccentric shaft (20). A roller conveyor and to a method for producing a braking device also are provided.

A braking device for a roller conveyor has at least one brake pad (40) for engagement with an outer circumference of at least one conveyor roller (60) of the roller conveyor. The braking device also has an eccentric shaft (20) with a first eccentric (24) for moving the brake pad (40) toward the conveyor roller (60) and away therefrom; and a stepping motor (10) for rotating the eccentric shaft (20). A roller conveyor and to a method for producing a braking device also are provided.

A roller assembly comprises a housing having an outer surface attached thereto, and a braking arrangement positioned at least partially within the housing. The braking arrangement is configured to increase resistance to rotation of the housing proportionally to a load applied against the outer surface.

A roller assembly comprises a housing having an outer surface attached thereto, and a braking arrangement positioned at least partially within the housing. The braking arrangement is configured to increase resistance to rotation of the housing proportionally to a load applied against the outer surface.

Disclosed is a powered transport cargo system, and a method of retrofitting a powered transport cargo system that includes braking rollers. The method includes replacing a power drive unit (PDU) of the powered transport cargo system with a PDU including a permanent magnet motor (PMM), and removing a braking roller from the powered transport cargo system.

Disclosed is a powered transport cargo system, and a method of retrofitting a powered transport cargo system that includes braking rollers. The method includes replacing a power drive unit (PDU) of the powered transport cargo system with a PDU including a permanent magnet motor (PMM), and removing a braking roller from the powered transport cargo system.

A braking device for a roller conveyor has at least one brake pad (40) for engagement with an outer circumference of at least one conveyor roller (60) of the roller conveyor. The braking device also has an eccentric shaft (20) with a first eccentric (24) for moving the brake pad (40) toward the conveyor roller (60) and away therefrom; and a stepping motor (10) for rotating the eccentric shaft (20). A roller conveyor and to a method for producing a braking device also are provided.

A braking device for a roller conveyor has at least one brake pad (40) for engagement with an outer circumference of at least one conveyor roller (60) of the roller conveyor. The braking device also has an eccentric shaft (20) with a first eccentric (24) for moving the brake pad (40) toward the conveyor roller (60) and away therefrom; and a stepping motor (10) for rotating the eccentric shaft (20). A roller conveyor and to a method for producing a braking device also are provided.

Disclosed is a cargo handling system, and a power drive unit (PDU) for a cargo handling system, wherein the PDU comprises a permanent magnet motor (PMM) and is designed to provide a first static restraint braking function effectuated by designing the PMM to have a high cogging torque, and a second dynamic control braking function effectuated by motor regeneration.