The MagnaShear fully electric oil shear motor brake is designed
for stopping and holding applications. Multiple disc oil
shear technology delivers superior dynamic braking and high thermal
capability for excellent positioning accuracy and repeatability. The MagnaShear
brake also provides long service life with low maintenance for applications
where downtime is critical.
Using 115 VAC electric power to release the spring set brake eliminates
the need for compressed air. This is handy where air is not available,
or where impractical to run airlines, plumbing in valves etc.
The motor mounted MagnaShear electric brake is designed to
mount directly onto a standard double ended NEMA brake motor.
The same unit pre-mounted to a motor and ready to use is called an assembled
brake motor, or EBM.
The flange mounted MagnaShear electric brake is designed to
fit special mounting flanges and shaft designs, including splined, step,
metric, etc. Several designs are currently available for a wide variety
of equipment, and new designs can be readily developed.
The MagnaShear electric brakes are all ABS (American Bureau of
Shipping) type certified.
- 4 Basic Sizes fit NEMA motor frames 56 to 449T. Other frame sizes
and types available.
- 115 VAC electric actuation, Spring Set- Electric Release
- Keyless high torque collet shaft connection - No key required
- Totally enclosed sealed housing eliminates dirt water or salt spray.
- Ask about our Special 24 Month Warranty
| Unit Size |
Motor NEMA Frame Sizes |
Maximum Torque (lb.-ft.) |
Thermal Rating KE per Engnmt. |
Cyclic Inertia (lb.ft.2) |
| Static |
Dynamic |
| MSB-3 |
56, 143T, 145T, 182U, 184U |
3 |
3 |
7,975 |
0.013 |
| 8 |
7 |
| 14 |
12 |
| MSB-4 |
182U, 184U, 182T, 184T, 213U, 215U, 213T, 215T |
9 |
78 |
22,000 |
0.024 |
| 21 |
18 |
| 33 |
28 |
| MSB-6 |
213U, 215U, 213T, 215T, 254U, 256U, 254T, 256T |
42 |
36 |
26,500 |
0.058 |
| 63 |
54 |
| 84 |
72 |
| MSB-8 |
284U, 286U, 284T, 286T, 324U, 326U, 324T, 326T |
100 |
86 |
41,500 |
0.287 |
| 150 |
129 |
| 200 |
172 |
| MSB-9 |
10.50" and 12.50" Pilot Diameters |
325 |
280 |
48,000 |
0.962 |
| 468 |
420 |
| 650 |
559 |
| MSB-10 |
10.50" and 12.50" Pilot Diameters |
450 |
387 |
69,000 |
1.244 |
| 675 |
581 |
| 900 |
774 |
| MSB-12 |
16" Diameter Pilot |
625 |
536 |
158,000 |
2.068 |
| 938 |
807 |
| 1,250 |
1,075 |