SG Transmission > Technical Information > Selection Data for Clutch & Brake Combinations
 |
t = Response time ts = Delay time td = Decay time |
Type
|
00 |
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
10 |
11 |
12 |
13 |
16 |
20 |
|
Clutch
|
t |
10 |
11 |
12 |
16 |
25 |
30 |
45 |
45 |
74 |
85 |
90 |
95 |
100 |
160 |
200 |
ts |
3 |
4 |
5 |
8 |
9 |
10 |
12 |
12 |
18 |
22 |
23 |
25 |
30 |
35 |
40 |
|
td |
3 |
4 |
5 |
10 |
11 |
12 |
15 |
15 |
20 |
40 |
40 |
65 |
65 |
100 |
130 |
|
Brake
|
t |
5 |
10 |
11 |
12 |
15 |
18 |
28 |
30 |
40 |
50 |
55 |
60 |
65 |
90 |
130 |
ts |
3 |
4 |
4 |
5 |
7 |
7 |
8 |
8 |
10 |
12 |
16 |
15 |
17 |
20 |
25 |
|
td |
4 |
5 |
6 |
7 |
8 |
10 |
20 |
20 |
30 |
50 |
50 |
85 |
90 |
110 |
140 |
|
Average switching times, in
milliseconds, with nominal air-gap
|
||||||||||||||||
Clutch or Brake size Selection
| Ts = Required / Motor torque | (Nm) |
1.) |
If the power to be transmitted is known then use formula (1). |
| Ta = Acceleration Torque | (Nm) |
2.) |
If the inertia of the system is known use formula (2) to determine the size of clutch or brake required. |
| N = Speed | (min-1) |
||
| J = Moment of Inertia | (kgm2) |
3.) |
Check using formula (3) that the size of the clutch or brake indicated by (1) or (2) has an adequate thermal rating. (see technical data sheet). |
| ta = Acceleration Time | (s) |
||
| P = Motor Power | (kW) |
||
| R = Thermal Rating | (W) |
4.) |
The above is a general guide to clutch or brake selection. However, a much more accurate assessment of your application can be made if you send full details of your design to our technical department. |
| F = Operations / min | |||
| (1) Ts = 9500 x P x 2 N |
(Nm) |
||
| (2) Ta = JxN x2 9.55 (ta-t) |
(Nm) |
||
| (3) R = J x N x F 11000 |
(Nm) |
Design Selection Chart
| Example,
right, shows an 07 module mounted between a motor with a B14
flange (solid shaft) and spur reducer to take a B5 flange (hollow
shaft). In this case the reducer output is controlled by the
clutch and brake in the module. These modular clutch brake units are used to couple between input and output devices which have I.E.C. standard flanges or pulleys. To select the unit you require, use the chart to cross-reference between your input and output configurations. |
 |
SG Transmission Products
• Holding Magnets
• Power on Clutches
• Power on Brakes
• Combined Clutch Brakes
• Clutch Brake IEC Modules
• Spring Applied Brakes
• Permanent Magnet Brakes
• Low Cost Slip Clutch
• Permanent Magnet Hysteresis Clutches and Brakes
• Magnetic Particle Clutches and Brakes
• Electromagnetic Particle Clutches and Brakes
• Flexible Couplings
A division of the Stephenson Gobin Group
• Holding Magnets
• Power on Clutches
• Power on Brakes
• Combined Clutch Brakes
• Clutch Brake IEC Modules
• Spring Applied Brakes
• Permanent Magnet Brakes
• Low Cost Slip Clutch
• Permanent Magnet Hysteresis Clutches and Brakes
• Magnetic Particle Clutches and Brakes
• Electromagnetic Particle Clutches and Brakes
• Flexible Couplings
A division of the Stephenson Gobin Group
SG Transmission Product Datasheets
• Holding Magnets Datasheet
• Power on Clutches Datasheet
• Power on Brakes Datasheet
• Combined Clutch Brakes Datasheet
• Clutch Brake IEC Modules Datasheet
• Spring Applied Brakes Datasheet
• Permanent Magnet Brakes Datasheet
• Low Cost Slip Clutch Datasheet
• Permanent Magnet Hysteresis Clutches and Brakes Datasheet
• Magnetic Particle Clutches and Brakes Datasheet
• Electromagnetic Particle Clutches and Brakes Datasheet
• Holding Magnets Datasheet
• Power on Clutches Datasheet
• Power on Brakes Datasheet
• Combined Clutch Brakes Datasheet
• Clutch Brake IEC Modules Datasheet
• Spring Applied Brakes Datasheet
• Permanent Magnet Brakes Datasheet
• Low Cost Slip Clutch Datasheet
• Permanent Magnet Hysteresis Clutches and Brakes Datasheet
• Magnetic Particle Clutches and Brakes Datasheet
• Electromagnetic Particle Clutches and Brakes Datasheet