Inertia Dynamics
Spring Applied Brakes
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Spring Applied Brakes - Type SABSpring Applied Brakes – Type SAB

Inertia Dynamics features a type SAB spring applied brake. SAB brakes are designed to be engaged and disengaged in a static condition at zero RPM. They are best used as a parking brake to hold a load in position. These brakes can be mounted to a flange or motor using thru-holes or tapped holes in the field cup. A conduit box is optional. SAB brakes have been used extensively for servo brake applications. High temperature coil insulations are available upon request.

Click here for ordering information (PDF, 56k). For larger sizes, please see Dynacorp's Spring Set Holding Brakes.

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Type SAB: Mechanical Specs | Electrical Specs | Dimensions | Notes | Ordering
Mechanical
MODEL NO. STATIC TORQUE
LB. - IN.		 INERTIA LB. - IN.2
ARMATURE & HUB ASSEMBLY		 WEIGHT
LB.
SAB20 20 .018 1
SAB90 90 .130 3
SAB180 180 .312 5
SAB400 400 .748 7.1
SAB1200 1200 1.732 12.4
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Electrical
MODEL NO. 90 V.D.C. 24 V.D.C. 12 V.D.C 120 V.A.C.
AMPS OHMS AMPS OHMS AMPS OHMS AMPS OHMS
SAB20 .098 922 .37 65 .72 16.7 .08 N.A.
SAB90 .17 534 .68 35.3 1.34 8.95 .13 N.A.
SAB180 .29 314 1.14 21.10 2.25 5.33 .25 N.A.
SAB400 .39 230 1.54 15.50 3.01 3.98 .33 N.A.
SAB1200 .58 156 2.27 10.60 4.51 2.66 .49 N.A.
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Model SAB20
Model SAB20 Spring Applied Brakes
Model SAB90
Model SAB90 Inertia Dynamics - Spring Applied Brakes
Model SAB180, SAB400, SAB1200
Model SAB180 Spring Applied Brakes from Inertia Dynamics
Dimensions
MODEL
NO.		 HUB
STYLE		 A
MAX.		 B
MAX.		 C
NOM.		 D
MAX.		 E
MAX.		 F
MIN.		 G
REF.		 H
MAX.

I
± .500

 J
NOM.		 K
DIA.		 L M BORES & KEYWAYS
BORE NOMINAL KEYWAY
X** Y**
SAB20 Hex 1.400 1.200 1.255 0.722 2.465 .605 .781 2.436 12.0 2.125 .172 — 1/4
5/16
3/8 		.0625 - .0655
.0625 - .0655
.094 - .097		 .285 - .290
.347 - .352
.417 - .427
SAB90 Hex 1.938 1.658 1.753 1.298 3.530 .850 1.375 3.530 18.0 3.125 .190 #6 —
32 x .5  		3/8
1/2
5/8
3/4		 .094 - .097
.125 - .128
.1885 - .1905
.1885 - .1905
 .417 - .427
.560 - .567
.709 - .716
.836 - .844
SAB180 Spline 1.770 1.500 2.930 — 4.260 .800 1.500 4.129* — 3.75 .218 #8 —
32 x .5		 3/8
1/2
5/8
3/4
7/8		 .094 - .097
.125 - .128
.1885 - .1905
.1885 - .1905
.1885 - .1905		 .417 - .427
.560 - .567
.709 - .716
.836 - .844
.962 - .970
SAB400 Spline 1.940 1.500 2.930 — 5.010 .800 1.770 4.514* — 4.5 .278 #10 —
24 x .5		 1/2
5/8
3/4
7/8
1		 .125 - .128
.1885 - .1905
.1885 - .1905
.1885 - .1905
.251 - .253		 .560 - .567
.709 - .716
.836 - .844
.962 - .970
1.113 - 1.121
SAB1200 Spline 2.050 1.500 2.930 — 6.510 .900 2.425 5.252* — 5.875 .404 1/4 —
20 x .5		 1
1-1/8
1-1/4
1-3/8
1-1/2		 .251 - .253
.251 - .253
.251 - .253
.3135 - .3155
.376 - .379		 1.114 - 1.124
1.241 - 1.251
1.367 - 1.377
1.518 - 1.528
1.606 - 1.616
* Reference Dimension
** X denotes keyway width, Y denoted keyway height plus bore
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Notes:

  1. SAB1200 — Special .375 x .250 key is supplied with unit. Mating shaft to have conventional ASA Standard Keyway.
  2. Conduit box is optional on models SAB 180, 400 and 1200. Screw terminals supplied in place of conduit box.
  3. Consult factory for Zero Backlash Hub Style.
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Inertia Dynamics Inertia Dynamics, LLC
31 Industrial Park Road, New Hartford, CT 06057
Toll-Free: 1-800-800-6445 | Main Phone: (860) 379-1252 | sales@idicb.com
Customer Service & Purchasing Fax: (860) 379-1137
Engineering Fax: (860) 379-1197

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