Spring Engaged Brakes

SEB Series

Spring Engaged Brakes

  • 3.0 to 20.0” diameter; 2.10 to 8.38” length
  • Bore sizes from 0.625 to 5.5”
  • Static torque from 0.08 to 4330 lb-ft
  • Starting torque from 0.04 to 2150 lb-ft
  • 24/90/110VDC coil voltage
  • Operates both dry and in oil
  • Modified designs and customized assemblies available
Performance / Mechanical Specifications SEB Series — Model Size
SEB - 300 SEB - 300 SEB - 340 SEB - 340 SEB - 500 SEB - 500 SEB - 670 SEB - 670
STP File Model
Model: SEB - 300
Model: SEB - 300
Model: SEB - 340
Model: SEB - 340
Model: SEB - 500
Model: SEB - 500
Model: SEB - 670
Model: SEB - 670
Model:
Torque Rating (Static) lb-ft
Model: SEB - 300
3.0
Model: SEB - 300
5.5
Model: SEB - 340
8.0
Model: SEB - 340
14.5
Model: SEB - 500
21
Model: SEB - 500
38
Model: SEB - 670
65
Model: SEB - 670
120
Model:
(Nm)
Model: SEB - 300
(4.1)
Model: SEB - 300
(7.5)
Model: SEB - 340
(10.9)
Model: SEB - 340
(19.7)
Model: SEB - 500
(28)
Model: SEB - 500
(52)
Model: SEB - 670
(88)
Model: SEB - 670
(163)
Model:
Torque Rating (Starting) lb-ft
Model: SEB - 300
1.5
Model: SEB - 300
2.3
Model: SEB - 340
4.0
Model: SEB - 340
7.5
Model: SEB - 500
10.5
Model: SEB - 500
19.0
Model: SEB - 670
32.5
Model: SEB - 670
60
Model:
(Nm)
Model: SEB - 300
(2.0)
Model: SEB - 300
(3.1)
Model: SEB - 340
(5.4)
Model: SEB - 340
(10.2)
Model: SEB - 500
(14.2)
Model: SEB - 500
(25.8)
Model: SEB - 670
(44.1)
Model: SEB - 670
(81)
Model:
Recommended Max Speed rpm
Model: SEB - 300
5000
Model: SEB - 300
5000
Model: SEB - 340
5000
Model: SEB - 340
5000
Model: SEB - 500
4000
Model: SEB - 500
4000
Model: SEB - 670
3600
Model: SEB - 670
3600
Model:
Body Diameter in
Model: SEB - 300
3.00
Model: SEB - 300
3.00
Model: SEB - 340
3.36
Model: SEB - 340
3.36
Model: SEB - 500
4.97
Model: SEB - 500
4.97
Model: SEB - 670
6.70
Model: SEB - 670
6.70
Model:
(mm)
Model: SEB - 300
(76.2)
Model: SEB - 300
(76.2)
Model: SEB - 340
(85.3)
Model: SEB - 340
(85.3)
Model: SEB - 500
(126.2)
Model: SEB - 500
(126.2)
Model: SEB - 670
(170.2)
Model: SEB - 670
(170.2)
Model:
Overall Length (ref) in
Model: SEB - 300
2.10
Model: SEB - 300
2.54
Model: SEB - 340
1.60
Model: SEB - 340
2.03
Model: SEB - 500
3.00
Model: SEB - 500
3.60
Model: SEB - 670
4.41
Model: SEB - 670
4.02
Model:
(mm)
Model: SEB - 300
(53.3)
Model: SEB - 300
(64.5)
Model: SEB - 340
(40.6)
Model: SEB - 340
(51.6)
Model: SEB - 500
(76.2)
Model: SEB - 500
(91.4)
Model: SEB - 670
(86.6)
Model: SEB - 670
(102.1)
Model:
Hub Bore Diameter – Max in
Model: SEB - 300
0.625
Model: SEB - 300
0.625
Model: SEB - 340
0.625
Model: SEB - 340
0.625
Model: SEB - 500
1.125
Model: SEB - 500
1.125
Model: SEB - 670
1.125
Model: SEB - 670
1.125
Model:
(mm)
Model: SEB - 300
(15.88)
Model: SEB - 300
(15.88)
Model: SEB - 340
(15.88)
Model: SEB - 340
(15.88)
Model: SEB - 500
(28.58)
Model: SEB - 500
(28.58)
Model: SEB - 670
(28.58)
Model: SEB - 670
(28.58)
Model:
Performance / Mechanical Specifications SEB Series — Model Size
SEB - 900 SEB - 900 SEB - 1075 SEB - 1075 SEB - 1200 SEB - 1200 SEB - 2000 SEB - 2000
STP File Model
Model: SEB - 900
Model: SEB - 900
Model: SEB - 1075
Model: SEB - 1075
Model: SEB - 1200
Model: SEB - 1200
Model: SEB - 2000
Model: SEB - 2000
Model:
Torque Rating (Static) lb-ft
Model: SEB - 900
250
Model: SEB - 900
450
Model: SEB - 1075
400
Model: SEB - 1075
800
Model: SEB - 1200
830
Model: SEB - 1200
2080
Model: SEB - 2000
2150
Model: SEB - 2000
4330
Model:
(Nm)
Model: SEB - 900
(339)
Model: SEB - 900
(610)
Model: SEB - 1075
(542)
Model: SEB - 1075
(1085)
Model: SEB - 1200
(1125)
Model: SEB - 1200
(2820)
Model: SEB - 2000
(2915)
Model: SEB - 2000
(5871)
Model:
Torque Rating (Starting) lb-ft
Model: SEB - 900
125
Model: SEB - 900
225
Model: SEB - 1075
200
Model: SEB - 1075
400
Model: SEB - 1200
400
Model: SEB - 1200
825
Model: SEB - 2000
1025
Model: SEB - 2000
2150
Model:
(Nm)
Model: SEB - 900
(169)
Model: SEB - 900
(305)
Model: SEB - 1075
(271)
Model: SEB - 1075
(542)
Model: SEB - 1200
(542)
Model: SEB - 1200
(1119)
Model: SEB - 2000
(1390)
Model: SEB - 2000
(2915)
Model:
Recommended Max Speed rpm
Model: SEB - 900
2800
Model: SEB - 900
2800
Model: SEB - 1075
2200
Model: SEB - 1075
2200
Model: SEB - 1200
1800
Model: SEB - 1200
1800
Model: SEB - 2000
1200
Model: SEB - 2000
1200
Model:
Body Diameter in
Model: SEB - 900
9.00
Model: SEB - 900
9.00
Model: SEB - 1075
10.75
Model: SEB - 1075
10.75
Model: SEB - 1200
12.00
Model: SEB - 1200
12.00
Model: SEB - 2000
20.00
Model: SEB - 2000
20.00
Model:
(mm)
Model: SEB - 900
(228.6)
Model: SEB - 900
(228.6)
Model: SEB - 1075
(270.1)
Model: SEB - 1075
(270.1)
Model: SEB - 1200
(304.8)
Model: SEB - 1200
(304.8)
Model: SEB - 2000
(508.0)
Model: SEB - 2000
(508.0)
Model:
Overall Length (ref) in
Model: SEB - 900
4.58
Model: SEB - 900
5.09
Model: SEB - 1075
4.50
Model: SEB - 1075
6.00
Model: SEB - 1200
5.74
Model: SEB - 1200
7.28
Model: SEB - 2000
7.38
Model: SEB - 2000
8.38
Model:
(mm)
Model: SEB - 900
(116.3)
Model: SEB - 900
(129.3)
Model: SEB - 1075
(114.3)
Model: SEB - 1075
(152.4)
Model: SEB - 1200
(145.8)
Model: SEB - 1200
(184.9)
Model: SEB - 2000
(187.5)
Model: SEB - 2000
(212.9)
Model:
Hub Bore Diameter – Max in
Model: SEB - 900
2.00
Model: SEB - 900
2.00
Model: SEB - 1075
2.500
Model: SEB - 1075
2.500
Model: SEB - 1200
3.00
Model: SEB - 1200
3.00
Model: SEB - 2000
5.500
Model: SEB - 2000
5.500
Model:
(mm)
Model: SEB - 900
(50.80)
Model: SEB - 900
(50.80)
Model: SEB - 1075
(63.50)
Model: SEB - 1075
(63.50)
Model: SEB - 1200
(76.20)
Model: SEB - 1200
(76.20)
Model: SEB - 2000
(139.70)
Model: SEB - 2000
(139.70)
Model:

SEB Operation:

The magnet body is attached to the rear of the motor or bulkhead, and the hub is attached to the shaft with two set screws. When the coil is energized, the electromagnetic field attracts the armature plate and compresses the springs. This allows the friction plate to rotate freely with the hub and shaft.

When power is turned off, the electromagnetic field dissipates,allowing the springs to push the armature plate into contact with the friction disk. This squeezes the friction disk between the pressure plate and the armature plate, thus transmitting torque, and stopping/holding the friction disc, hub, and shaft.