Placid Industries - - Magnetic Particle Brakes, up to 220 lb.-inch torque.

Magnetic Particle Brake - Specifications

   graphic  Larger brakes
up to 300 lb.-ft.
available.		   clutch photo
Torque range = 0-1 oz.-in.  to  220 lb.-in.

View in metric units
Brake photo Typical applications:
  • Adjustable tension - for unwinding (payout) webs
  • Load simulation - for testing stepper motors, gear motors and mechanisms
  • Soft stops

The cross-section drawing shows how brakes work.
graphic

Mount with shaft in any orientation.
Models B5Z-1, B150-H, B1-2  

Torque Curve Torque is -
  • Proportional to input current
  • Independent of RPM

Characteristics - With no electrical excitation, the shaft freely rotates.
With electrical excitation, the shaft becomes coupled to the case.

While the load torque is less than the output torque, the shaft won't rotate.
When the load torque is increased, the brake will slip smoothly at the torque level set by the coil input current.


Use the sizing information to select the proper brake.

Magnetic Particle Brake Specifications
MODEL

(Click p/n
to view
photo)
image		 Torque
Range

(lb.-in.)		 Input
Electric
Power
(Watts)
image		 Shaft Inertia

(lb.-in.-sec.2)		 Slip Heat
Dissipation

(Watts)		 Overhung
Load, Max.

(lbs.)		 Max.
RPM		 Weight

(lbs.)		 Data Sheets
image PDF logo
B5ZD 0.003 - 0.063 1.5 11 x 10-9 1.5 0.7 4000 0.2 B5ZD data sheet
B5Z 0.006 - 0.31 16 x 10-8 2 3500 B5Z data sheet
B1 0.04 - 1 2 11 x 10-7 3.5 4 3000 0.6 B1 data sheet
B2 0.05 - 2.5 3 55 x 10-7 8 5 2500 1 B2 data sheet
B6 0.2 - 6 4 23 x 10-6 15 25 2000 2 B6 data sheet
B15 0.3 - 15 6 34 x 10-6 20 2.5 B15 data sheet
B35 0.6 - 35 9 12 x 10-5 30 50 1800 4 B35 data sheet
B60 1 - 60 8 45 x 10-5 50 100 7 B60 data sheet
B115 2.5 - 115 13 61 x 10-5 55 120 8 B115 data sheet
B150 3. - 150 15 x 10-4 80 1300 12 B150 data sheet
B220 4. - 220 18 29 x 10-4 110 1000 21 B220 data sheet
Larger brakes, up to 300 lb.-feet torque, available.

Available in 6, 12, 24, & 90 volts D.C.
The Brake Coil Specifications Chart shows rated current & coil resistance.

Magnetic Particle Brake Drawings

Click shaft size to view drawing.
MODEL image  DRAWINGS
  Solid shaft  (O.D.)     Hollow shaft  (I.D.)  
  image     image     image  
B5Z,  B5ZD 1/8" 1/8" -
B1 3/16" 3/16" -
B2 1/4" 1/4" -
B6 3/8" 3/8" -
B15 3/8" 3/8" 3/8"
B35 1/2" 1/2" 3/8"
B60 3/4" - 1/2"
B115 3/4" 1/2"
B150 3/4" 3/4"
B220 3/4" 3/4" 7/8"
Larger brakes, up to 300 lb.-feet torque, available.
Dimensions - inches
   PDF icon
Download
1 page summary sheet
in PDF format
US Flag

Brakes
B5Z through B220
are proudly
Made in U.S.A.
home.gifReturn to Main Page