2015 Designer's Notebook - 119

Global Brake Specifications
Model

lb-ft
GBA
GBA-AIR
GBB
GBB-AIR
GBC
GBC-AIR
GBD
GBD-AIR
GBE
GBE-AIR
GBF
GBF-AIR

Heat
NonInertia (WR2)
Dissipation
Excited
of Rotating
at 1800 rpm Drag Torque
Members
of Outer
Member
Nm
lb-ft Nm lb-ft2 kg-m2
(Watts)

Rated
Torque

5.5

7.5

11

14.9

26

35.2

56

75.9

100

135

325

441

88
295
85
351
155
556
195
657
320
1230
595
1930

0.07

0.09

0.013

.00055

0.07

0.09

0.030

0.0013

0.23

0.31

0.08

0.0034

0.56

0.76

0.30

0.013

1.3

1.76

0.33

0.014

3.3

4.47

1.97

0.083

Weight

lb

kg

11

5

14

7

15

7

17

8

25

11

28

13

38

17

42

19

75

34

86

39

180

81.6

191

86.6

Coil Data
(90 VDC)

Coil Data
(24 VDC)

Time Constant
(Seconds)
90 & 24 VDC

Rated
Current

Ω@
20˚C

Rated
Current

Ω@
Current Torque
20˚C

0.16

361

0.67

20.8

0.06

0.22

0.21

278

0.89

15.7

0.09

0.18

0.32

186

1.11

13.2

0.10

0.28

0.39

150

1.42

10.2

0.16

0.36

0.45

129

1.46

9.9

0.56

1.38

0.53

111

1.61

9.21

1.12

1.88

Typical Torque vs. Current
(90 VDC and 24 VDC Models)

Magnetic Particle Clutches & Brakes

Non excited drag torque and torque time
constant measured at 1800 rpm. Minimum
recommended rpm is 10 rpm. Axis of shafts
must lie within 30˚ of horizontal. Non
excited drag torque values represent a
typical unit after a few minutes of use.
Drag torque in a new, unused unit may
initially be higher.
The time in seconds for current or torque to
reach 63% of the final value after step
function voltage is applied. "Rated current"
is the current which will occur from a 90
VDC input to the clutch when the unit is
operated at its rated temperature
(maximum heat dissipation).

Magnetic Particle Clutches & Brakes

119



Table of Contents for the Digital Edition of 2015 Designer's Notebook

Table of Contents
2015 Designer's Notebook - Cover1
2015 Designer's Notebook - Cover2
2015 Designer's Notebook - Table of Contents
2015 Designer's Notebook - 2
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2015 Designer's Notebook - Cover3
2015 Designer's Notebook - Cover4
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