The MB Series (Magnetic Brake)

image Shown at left is the model MB-2.4

The MB series are electrically similar to simple hysteresis brakes. The electrical input to the brake consists of two wire leads. The current or voltage is controlled by the customer. At zero RPM the MB series brakes have the same torque characteristics as hysteresis brakes. As shown in the torque vs. speed curves for the various MB models, the torque increases with the speed. This phenomenon substantially increases the torque output of the brakes but must be taken into account by the customer.

Specifications - English (in·oz)

MODEL

 

Outside
Diameter

Max. Torque at Zero rpm

Max. Torque at Max. rpm
Max.
rpm
Min. Torque at Max. rpm*
Max.
15 sec
Power @ Max. rpm
Max.
Continuous
Power @ Max. rpm
Outline
Drawing

Performance
Curves

inches
in·oz
in·oz
rev/min
in·oz
hp
hp
PDF
PDF
MB-2.4
2.40
36
61
15,000
5
0.99
0.99
MB-3.75
3.75
130
231
12,000
41
2.75
1.36
MB-5.7
5.70
558
1,239
8,000
172
5.58
3.37
MB-8.7
8.70
2,074
7,676
6,000
500
23.08
6.59
MB-17.5
17.5
16,600
72,800**
2,500
3,230
69.3
16.2

Specifications - English (ft·lb)

MODEL

 

Outside
Diameter

Max. Torque at Zero rpm

Max. Torque at Max. rpm
Max.
rpm
Min. Torque at Max. rpm*
Max.
15 sec
Power @ Max. rpm
Max.
Continuous
Power @ Max. rpm
Outline
Drawing

Performance
Curves

inches
ft·lb
ft·lb
rev/min
ft·lb
hp
hp
PDF
PDF
MB-2.4
2.40
0.19
0.32
15,000
0.03
0.99
0.99
MB-3.75
3.75
0.68
1.20
12,000
0.21
2.75
1.36
MB-5.7
5.70
2.91
6.45
8,000
0.90
5.58
3.37
MB-8.7
8.70
10.80
39.98
6,000
2.60
23.08
6.59
MB-17.5
17.5
86.5
379**
2,500
16.83
69.3
16.2

Specifications - SI

MODEL

 

Outside
Diameter

Max. Torque at Zero rpm

Max. Torque at Max. rpm
Max.
rpm
Min. Torque at Max. rpm*
Max.
15 sec
Power @ Max. rpm
Max.
Continuous
Power @ Max. rpm
Outline
Drawing

Performance
Curves

mm
N·m
N·m
rad/sec
N·m
watts
watts
PDF
PDF
MB-2.4
60.96
0.25
0.43
1,570.80
0.04
739
739
MB-3.75
95.25
0.92
1.63
1,256.64
0.29
2,047
1,013
MB-5.7
144.78
3.94
8.75
837.76
1.21
4,164
2,515
MB-8.7
220.98
14.65
54.20
628.32
3.53
17,214
4,916
MB-17.5
444.5
117.3
513.9**
261.8
22.8
51,698
12,085

*with zero current to the brake coil, this torque is due to air drag, bearing friction etc.

**torque value at 1,400 rpm

Product Catalog

PDF of Magnetic Brake Dimensions and Specifications

CAUTION

The MBS brakes are meant only for OEM applications. The outside of the brakes may get EXTREMELY HOT. No shields are provided with the brake. Customers should contact MBS for custom designed shields.