Magnetic Particle Brake - Specifications & Dimensions

Torque range= 0-5 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.
Models B5Z-1, B150-HA, B1-2

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

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

Use the sizing information to select the proper brake.

Magnetic Particle Brake Specifications
Model
(Click
to view
photo)
 Torque
Range
(lb.-in.)		 Input
Electric
Power
(watts)		 Shaft Inertia
(lb.-in.-sec.2)		 Slip Heat
Dissipation
(watts)		 Overhung
Load, Max.
(lbs.)		 Max.
RPM		 Weight
(lbs.)		 Data Sheets
(Acrobat
.pdf format)
B5Z 0.006 - 0.31 1.5 16 x 10-8 2 0.7 3500 0.2 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

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

Brake Dimensions - Specify a solid shaft out 1 side, 2 sides, or a hollow shaft

Brake Drawing Dimensions are in inches.
Model
(Click
to view
drawing)

Thru-Bore

Shaft Dia.

Mounting
Pilot Dia.

Case Dia.

Shaft-Shaft

Body
Width

Shaft Length

Mtg.
Pilot
Width
A
+.001
-0		 B
+/-.0002		 C
+0
-.001		 D
+/-.015		 E
+/-.010		 F
+/-.030		 G
+/-.020		 H
+/-.020
Optional		 J
+/-.010
B5Z Solid
Shaft
Only		 0.1247 0.437 1.05 2.50 .88 0.81 0.06
B1 0.1872 0.687 1.56 2.70 1.06
B2 0.2496 0.750 2.09 3.05 1.15 0.94
B6 .3746 1.186 2.47 3.54 1.37 1.09 0.08
B15 Solid 1.125 2.87 3.56
B15-H 0.375 I.D. .498 2.10 0.47 0.27
B35 Solid 0.4995 3.37 3.71 1.47 1.12 0.09
B35-H 0.375 I.D. 0.498 2.20 0.47 0.25
B60 Solid 0.7495 1.875 4.50 3.53 1.77 1.42 0.33 0.11
B60-H 0.501 I.D. 0.748 2.63 0.52
B115 Solid 0.7495 4.71 3.53 1.41
B115-H 0.501 I.D. 0.748 2.63 0.52
B150 Solid 0.7495 1.625 (a) 5.23 3.92 2.17 1.53 0.22 0.13
B150-H 0.750 I.D. 0.906 3.187 3.25 0.82 0.26 0.09
B220 Solid 0.7495 3.625 6.25 5.63 2.63 1.50 0.09
(a) 3.187 on H side
Brake Mounting Holes
Model No. of
Holes		 Thread Basic
Circle
B5Z 6 (a) #1-72 (a) 0.906 (a)
B1 3 #6-32 1.350 (a)
B2 1.350
B6 2.203
B15 #8-32 2.000
B35 4 #10-32 3.000
B60 4.228
B115
B150 1/4-20 4.812
B220 5.750
(a) Mounting holes are on output end only
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