Brake Motors

Operation
ABB’s brake motor is a standard motor modified for braking duties, i.e. a three phase induction motor with standard dimensions and output rating.
The electro-magnetic disc brake is powered, by either DC current through a rectifier located in terminal box or three-phase AC current. When the brake coil is de-energised, the brake is actuated by spring pressure.
The axial movement of the brake disc performs a dual braking action against the moving electromagnet and the motor shield, without pressure or impact being transmitted to the bearings.
The brake linings withstand high temperatures, have great wear resistance and give long life. Because of the very low wear of the braking disc, the brakes of the ABB motor usually require only one-third of the maintenance required by other common brake types in
the market

Brochures
Brake Motors (2.06 MB - pdf)

ABB Brake Motor

Mounting arrangements of brake motors
The design of the brake motor enables it to operate in any mounting position. Nevertheless, the position of the drain holes should be taken into account.
Mechanical parts of the brake, protected with a rubber ring and V-ring – IP 55 (optional: variant code 213). Vertically mounted motors with the shaft end downwards, intended for outdoor operation, should be provided with a protective roof to avoid water ingress and the possibility of ice forming on the brake.

Brake disc
The brake lining is made from asbestos-free material. It is highly resistant to wear and has excellent thermal conductivity, thus giving consistent performance even at high temperatures.
The brake disc withstands a large number of braking operations and is insensitive to dust and moisture. The core of the brake disc is grooved and made of special polyamide that absorbs impacts, enabling it to work with high vibration applications.

Lubrication and bearings
The bearings incorporate two Z-type non-friction sealing plates. The amount of grease is sufficient for the life of the bearing. The motors are fitted with the bearings listed in the
table.

Motor size D-end N-end
M3VRF/S 63 A, B, BB 6202-2Z/C3 6202-2Z/C3
71 6203-2Z/C3 6203-2Z/C3
80 6204-2Z/C3 6204-2Z/C3
M3ARF/S 90 6205-2Z/C3 6205-2Z/C3
100 6306-2Z/C3 6206-2Z/C3
112 6206-2Z/C3 6206-2Z/C3
132 6208-2Z/C3 6208-2Z/C3
160 6309-2Z/C3 6209-2Z/C3
180 6310-2Z/C3 6209-2Z/C3