Brake Motor
Type - UBM
H.P. : 0.05 HP - 30 HP
 

Typical Application :
Textile Machines, Material handling equipments, Conveyors, Machine Tools, Cranes & Hoists, Glass Manufacturing Machines, Geared Motors, Wire dawing machinery, Sluice Gates, Cable reeling drum, Navy Deck Machinery, Leather processing machinery, Steel rolling mills, Special purpose machines, Defence equipments... etc.

 
Brake Motors are used for various application where instantaneous stopping of the driven load is required. The operation of the brake is "FAIL SAFE TYPE" (USB & UMB series) and are NORMALLY ON. The brake is applied when power to the motor is switched off or power failure occurs.
 
CONSTRUCTION
Brake Motor is combination of an AC induction motor and an electromagnetic DC fail safe brake.

As shown in the figure brae motor consists of the following :

● AC induction motor (Foot/Flange)
● Electromagnetic DC fail safe brake type USB or UMB.
● Cooling fan after the brake for better heat dissipation and cooling of motor & brake as well.
● Rectifier unit either can be provided near to motor terminal (for AC switching) or given separately to mount them in the control panel (for DC switching).
● manual release is an optional feature and will be provided only with our UMB series brakes.

 
WORKING
When there is no power given to either motor or brake, the brake torque is provided by compression springs developing an axial force on the brake armature plate which ultimately presses it against mounting flange. In this condition a nominal "air gap" will be available and the rotor with the frictional surfaces remains sandwiched in between armature plate anf mounting plate.

Pelease of the brake takes place, when the power to the brake and motor is supplied at the same tme. Power to the brake coil produces strong magnetic filed and pulls the armature plate against the compression spring force towards the stator (Brake Coil) over the air gap and rotor becomes free to rotate. The attraction of the armature plate and returning to it's original position takes place instantaneously thus failsafe nature is ensured in case of power failure.
 
Motor
HP/KW
Motor
RPM
Motor Frame
Size
Brake Size/Torque Nm Safety
Factor
0.25/0.18 1500 63 05 4.2
1000 71 05 2.79
750 80 05 2.10
0.5/0.37 1500 71 05 2.10
1000 80 10 2.79
750 90S 10 2.10
0.75/0.55 1500 80 10 2.79
1000 80 10 1.86
750 90L 20 2.79
1.0/0.75 1500 80 10 2.10
1000 90S 20 2.79
750 100L 20 2.10
1.5/1.1 1500 90S 20 2.79
1000 90L 20 1.86
750 100L 35 2.44
2.0/1.5 1500 90L 20 2.10
1000 100L 35 2.44
750 112M 35 1.83
3.0/2.2 1500 100L 35 2.44
1000 112M 65 3.02
750 132S 65 2.26
5.0/3.7 1500 112M 65 2.72
1000 132S 65 1.82
750 160M 85 1.78
7.5/5.5 1500 132S 85 2.37
1000 132M 155 2.88
750 160M 155 2.16
10.0/7.5 1500 132M 85 1.78
1000 160M 155 2.16
750 160L 250 2.65
12.5/9.3 1500 160M 155 2.60
1000 160L 155 1.73
750 180M 250 2.10
15.0/11.0 1500 160M 155 2.16
1000 160L 250 2.33
750 180L 400 2.79
20.0/15.0 1500 160L 250 2.62
1000 180L 400 2.79
750 200L 400 2.03