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 Gemco Series 1980 Micro-Adjust Rotating Cam Limit
 Switches Brochure:
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GEMCO
 
Micro-Adjust Cams
 
Series 1980
 
Rotating Cam Limit Switches
 
 
 
FEATURING
• Precision Cam adjustment at any angular position of the
  Cam shaft
• Speeds from 0 to 500 RPM in either direction
• No special cams required for any contact setting from 4°
  to 356°
• No tools required to adjust Cam setting
• Accurate repeatability
• Gemco rugged duty precision snap action switches
 
 
ACCESSORIES
The following accessories can be obtained with the Gemco
Rotating Cam Limit Switch:
• Straight Drive and Right Angle Gear Reducers
• Timing Dial and Timing Dial Window
• Electrical Wiring per Customers Specification
• Motor Driven Rotating Cam Limit Switch with A.C. or D.C. for
  Adjustable Speed Drives
• Potentiometer driven off the cam shaft
• Spring Return Mechanism
• Plug-In Socket
• Double Ended Shafts
• Pilot Lights
• 3 Way and 4 Way Air Valves directly interchangeable with
  switches
• Special Conduit Opening
• Special shaft extensions and keyway
• Adjustable Coupling (See Catalog Section 3001)
• Special Cams & Large 6° Cams for Higher Resolution
• Combination Adjustable-In-Motion and Micro-Adjust Circuits (see
  Catalog Section 1981)
• Electric Clutch and/or Brake
• Separate Terminal Strips
• Add-A-Cam Feature
• Factory Adjustment of Cams Available
• Open Type Units
• Dual Shafts
 
FOR OSHA STANDARDS
• Motion Detector
• Gemco DRIVE-CHEK®
] Either is necessary for
] mechanical press application*
• Dual Shaft Cam Switch
• Consult manufacturer for desired accessories
 
 
APPLICATION:
Gemco's all new Micro-Adjust Rotating Cam Limit Switch is a pilot device used for heavy duty material handling mechanisms, mechanical presses,* packaging machines, rotary table, and in many other applications where accurate, repetitive, and sequential operations are required in control circuitry.
 
When motion is expressed in shaft rotation, either through a roller chain, gear train, or directly, the Gemco Rotating Cam Limit Switch makes it possible to open or close independent circuits at any desired angular position.
 



 

MOUNTING OF UNIT
Mount the assembly and couple input shaft to the driving member with the shaft keyway up and in line with the positioning arrow on the bearing end plate. The machine should be in the start cycle position.
 
ESTABLISHING CAM SHAFT
DIRECTION OF ROTATION
Cam settings should be made with the cam shaft uppermost to the viewer. The picture at the top right illustrates this viewing position and also shows the adjusting tool being applied to the adjusting wheel. Shaft rotation is always established off the right end of the unit even when the input shaft, whether direct or through a gear reducer, is situated at the left end. As an aid to designating shaft rotation when a gear reducer is used, consult page 14 of this catalog section.
 
CAM SETTINGS
For clockwise rotation set "make" angle with the black dial and break with the red dial for dwell settings less than 180°. Reverse colors for dwells 180° or greater.
 
For counterclockwise rotation, set "make" angle with the white dial and "break" with the yellow dial. Reverse colors for dwells 180° or greater.
 
Switch connections should be made in accordance with the illustrations to the right, which incidentally are both clockwise rotating examples.
TYPICAL SETTINGS AT BEGINING
OF MACHINE CYCLE

 
DESCRIPTION
Precision, rugged duty snap action switches, extremely accurate cam adjustments with a heavy-duty shaft, rugged case and lifetime sealed ball bearings, have been combined by Gemco to provide the most versatile and dependable Rotating Cam Limit Switch available.
 
 
 
NO SPECIAL CAMS ARE REQUIRED
 
The accurate cam adjustments are made possible by the use of a separate reduction drive in each half of a circuit cam block assembly. This drive provides a 36 to 1 ratio, which means that one revolution of the adjustment wheel will advance or retard the cam set ting by 10 degrees.
 
For most applications, therefore, no special cams are necessary and settings may be changed at any angular position of the camshaft.
 
LIFETIME SEALED BALL BEARING allows mounting in any position.
 
LARGE COVER OPENINGS for ease of wiring.
 
NO MINIMUM SPEED is specified because snap action contacts are used. Maximum rated speed of the cam shaft is 500 RPM and can be rotated either clockwise or counterclockwise.
 
Two types of compact integrally MOUNTED GEAR REDUCERS are available with ratios of 1:1 through 600:1. They can also be supplied with speed multipliers up to 1:8.
  TECHNICAL DATA
• The maximum temperature with full electrical load is
  185°F. The minimum operating temperature is -50°F
  minimum cam adjusting temperature is -10°F.
• Standard Gemco Rotating Cam Limit Switches have a
  rating of 50 pounds end thrust and 500 pounds radial load
  on standard shaft extensions.
• TORQUE REQUIRED - .6 LB-IN/CIRCUIT.
• REPEATABILITY + OR - 1/4°
 
SNAP ACTION SWITCHES
All standard Gemco Rotating Cam Limit Switches employ S.P.D.T. precision type snap action switches which provide the advantage of double break contacts and are actuated at a uniform rate to give long life. D.P.D.T. switches can be provided upon request. Any number of circuits from 1 to 40 may be supplied as standard in NEMA 1, NEMA 4, NEMA 7 and NEMA 12 enclosures.
 
GEMCO MICRO-ADJUST
CAMS PROVIDE UNLIMITED CIRCUIT VERSATILITY

 

 
Each switch setting can be adjusted to your circuit requirements. An unlimited selection of circuit arrangements is available with the Gemco Rotating Cam Limit Switch, with no special mounting cams, dogs, etc. for contact settings.
 
ELECTRICAL SWITCHES
 
DESCRIPTION
The Gemco Precision Snap Switches are designed for industrial duty applications where compact size, complete reliability and millions of trouble free operations are required.
 
The housing is molded material, which has excellent resistance to arcing and carbon tracking. The operating button is of molded nylon, a material with excellent wear characteristics.
 
The button is well guided at the top and bottom to insure accurate repeatability and minimum wear.
 
Any combination of Single Pole Double Throw or Double Pole Double Throw snap action switches can be supplied with the Gemco Rotating Cam Limit Switch.
 
The switches are individually mounted and can be readily replaced without the need of adjustment or alignment. All switches have binder head terminal screws, which are accessible for wiring with either stripped, or wire lug connections.

NOTE: Refer to Catalog Section 1950 for detailed information pertaining to all Standard and Special Switch Options.
Switch replacement is recommended every 15 million cycles.


1. Plunger
2. Eyelet
3. Enclosure
4. Cover
5. Contract Spring
6. Movable Contact Ass'y
7. Stationary Contact Ass'y
8. Return Spring
9. Terminal Screws
 
ELECTRICAL CONTACT RATINGS
Switch Type Contacts Volts AC Volts DC
Inductive  
Pilot Duty 35% Power Factor
Resistive 75% Power Factor Inductive Pilot Duty
and Resistive
Make Break  
Continuous Carrying Amperes Make, Break,
and Continuous Carrying Amperes
Make and Break Amperes Continuous Carrying Amps
Amps VA Amps VA Single Throw Double Throw
1950-4 DPDT 115
230
440
575
30
15
7.5
6
3450
3450
3450
3450
3
1.5
0.75
0.6
345
345
345
345
10
10
10
10
10
10
10
10
115
230
600
1.0
0.3
0.1
0.2
0.1
....
10
10
10
1950-1 SPDT 110
220
440
600
40
20
10
8
....
....
....
....
15
10
6
5
....
....
....
....
15
15
15
15
15
15
15
15
115
230
600
0.5
0.25
0.05
0.25
0.1
....
15
15
15
15
 
EXPLANATION OF CATALOG NUMBERING SYSTEM


 
* Number of circuits restricted - consult factory
** When plug-in switches are specified, one extra circuit space must be allowed for in the enclosure
 
STANDARD PART NUMBERS
 
NEMA 1
NEMA 4 & 5
NEMA 7
NEMA 12
Number
of
Circuits
NEMA 1 NEMA 4 & 5 NEMA 7 NEMA 12
  Catalog
Number
Cat. No.
w/Resolver
Catalog
Number
Cat. No.
w/Resolver
Catalog
Number
Cat. No.
w/Resolver
Catalog
Number
Cat. No.
w/Resolver
1
2
3
4
1980-101
1980-102
1980-103
*1980-104
1980R-101
1980R-102
1980R-103
1980R-104
1980-401
1980-402
1980-403
1980-404
1980R-401
1980R-402
1980R-403
1980R-404
1980-701
1980-702
1980-703
1980-704
Consult
Factory
1980-1201
1980-1202
1980-1203
*1980-1204
1980R-1201
1980R-1202
1980R-1203
1980R-1204
5
6
1980-105
*1980-106
1980R-105
1980R-106
1980-405
1980-406
1980R-405
1980R-406
1980-705
1980-706
  1980-1205
*1980-1206
1980R-1205
1980R-1206
7
8
1980-107
*1980-108
1980R-107
1980R-108
1980-407
1980-408
1980R-407
1980R-408
1980-707
1980-708
  1980-1207
*1980-1208
1980R-1207
1980R-1208
9
10
11
12
1980-109
1980-110
1980-111
*1980-112
1980R-109
1980R-110
1980R-111
1980R-112
1980-409
1980-410
1980-411
1980-412
1980R-409
1980R-410
1980R-411
1980R-412
1980-709
1980-710
1980-711
1980-712
  1980-1209
1980-1210
1980-1211
*1980-1212
1980R-1209
1980R-1210
1980R-1211
1980R-1212
13
14
15
16
1980-113
1980-114
1980-115
1980-116
  1980-413
1980-414
1980-415
1980-416
  1980-713
1980-714
1980-715
1980-716
  1980-1213
1980-1214
1980-1215
1980-1216
 
17
18
19
20
1980-117
1980-118
1980-119
1980-120
  1980-417
1980-418
1980-419
1980-420
  1980-717
1980-718
1980-719
1980-720
  1980-1217
1980-1218
1980-1219
1980-1220
 
21
22
23
24
1980-121
1980-122
1980-123
1980-124
  1980-421
1980-422
1980-423
1980-424
  1980-721
1980-722
1980-723
1980-724
  1980-1221
1980-1222
1980-1223
1980-1224
 
25
26
27
28
1980-125
1980-126
1980-127
1980-128
  1980-425
1980-426
1980-427
1980-428
  1980-725
1980-726
1980-727
1980-728
  1980-1225
1980-1226
1980-1227
1980-1228
 
29
30
31
32
1980-129
1980-130
1980-131
1980-132
  1980-429
1980-430
1980-431
1980-432
  1980-729
1980-730
1980-731
1980-732
  1980-1229
1980-1230
1980-1231
1980-1232
 
33
34
35
36
1980-133
1980-134
1980-135
1980-136
  1980-433
1980-434
1980-435
1980-436
  1980-733
1980-734
1980-735
1980-736
  1980-1233
1980-1234
1980-1235
1980-1236
 
37
38
39
40
1980-137
1980-138
1980-139
1980-140
  1980-437
1980-438
1980-439
1980-440
  1980-737
1980-738
1980-739
1980-740
  1980-1237
1980-1238
1980-1239
1980-1240
 
 
* Stock with a right hand shaft and S.P.D.T. switches.
SINGLE SHAFT EXTENSION
MAXIMUM SPEED 500 R.P.M.
CONSULT FACTORY FOR OPTIONS AND NON-LISTED CATALOG NUMBERS.
 
SHAFT EXTENSION
The Gemco Rotating Cam Limit Switch can be supplied with the desired shaft extension. The standard shaft extension can be specified in the catalog numbering system on page 8.
 
To determine the shaft extension symbol, the Rotating Cam Limit Switch must be viewed from the switch side of the assembly as shown.
 
  The shaft extension can be specified as either:
 
L= Left shaft extension
R= Right shaft extension
D= Double shaft extension (both ends)
X= No shaft extension opposite the gear box
V= Shaft extension opposite gear box

SWITCH TYPE
 
The Gemco Precision Snap Switches are specifically designed for industrial duty applications where reliability, ease of wiring and millions of trouble free cycles are required.
 
The Gemco Rotating Cam Limit Switch can be supplied with either a basic single pole double throw (S.P.D.T.), double pole double throw (D.P.D.T.) or a combination of both types.
 
A Plug-In Socket can be supplied with either the S.P.D.T. Or D.P.D.T. switches.
 
NOTE: REFER TO CATALOG SECTION 1950 FOR FURTHER DETAILS ON SNAP SWITCH PARTS AND OPTIONS.
   
 
The type of snap switch can be specified in the catalog numbering system on page 8.
 
SP = Single pole double throw
DP = Double pole double throw
 
SPP = Single pole double throw with a plug-in socket  
DPP = Double pole throw with a plug-in socket

 
The Plug-In Socket eliminates error due to disconnecting and connecting wires during replacement of the snap switch. A marking strip is supplied with each plug-in socket for ease of wire identification.

 
 

Switch Replacement is Recommended Every 15 Million Cycles.
 
ADDING A TIMING DIAL
SELECTING THE CORRECT SIZE ENCLOSURE

DETERMINING DIRECTION OF A CAM SHAFT - TIMING DIAL ROTATION
RIGHT ANGLE GEAR REDUCER ROTATION
Rotation Input Shaft Versus Cam Shaft
Gear Reducer Positions Gear Reducer Input Shaft Rotation Cam Shaft Timing Dial
R1 or L1 CW CW
CCW CCW
R2 or L2 CW CCW
CCW CW
R3 or L3 CW CW
CCW CCW
R4 or R4 CW CCW
CCW CW
R5 or L5 CW CW
CCW CCW
R6 or L6 CW CCW
CCW CW
R7 or L7 CW CW
CCW CCW
R8 or L8 CW CCW
CCW CW

 
 
SRAIGHT DRIVE GEAR REDUCER
Input Shaft Rotation Versus Cam Shaft Rotation
Straight Driver Gear Reducer Right End CW CCW
CCW CW
Left End CW CW
CCW CCW
All Ratios From 1.25:1 to 3:1 Right End CW CW
CCW CCW
Left End CW CCW
CCW CW
All Ratios From 4:1 to 8.5:1 Right End CW CW
CCW CCW
Left End CW CCW
CCW CW
All Ratios From10:1 to 600:1 Right End CW CW
CCW CCW
Left End CW CCW
CCW CW
All Gear Multipliers From 1:2 to 1:3 Right End CW CCW
CCW CW
Left End CW CW
CCW CCW
All Gear Multipliers From 1:4 to 1:8 Right End CW CW
CCW CCW
Left End CW CCW
CCW CW

 
REPLACEMENT CAM ASSEMBLIES
 

Std. Cam Ass'y
Part No. ST-1178-C

Std. Cam Ass'y
Part No. ST-1140-C
STANDARD CAM ASSEMBLY
Part No. SD-1178-C
(includes two cams, part nos. P-356-B and P-357-B)
 
BLANK CAM ASSEMBLY Part No. SD-1140-C
(includes two blank cams, part no. P-271-B)
 
SPECIAL CAMS
A Blank Cam Assembly (Part No. SD-1140-C) can be supplied in place of the Standard Cam Assembly, (Part No. SD-1178-C) at no additional charge, when specified. Advise number required and location.
 
A DRAWING OF THE CAM SHAPE MUST BE FURNISHED WITH ORDER. Generally, two cams are required per circuit.
 
When ordering special cut cams, the customer will supply a detail of the cam profile and the electrical timing chart showing the con tact setting as required.
 
SPECIAL CONDUIT OPENING
 

Specify conduit size and location.

   
 
DESCRIPTION
The DRIVE-CHEK is a multi-purpose sub base that is mounted under a chain or belt driven mechanism, The unit serves three purposes; a broken chain or belt detector, a chain or belt tightener, and a shock and vibration isolator.
 
A Gemco Indicator Switch is provided with each DRIVE-CHEK Unit to indicate when a drive belt or chain failure has occurred. Shock and vibration from the machine to the hinge plate of the DRIVE-CHEK Unit are dampened by coil springs on one end of the hinge plate and an elastomeric support on the other end.
 
The springs also maintain a constant tension in the drive belt or chain, DRIVE-CHEK is of rugged welded construction and is painted to prevent corrosion. The drive chain or belt can be attached to the mechanism being driven from either above or below the DRIVE-CHEK base.
 
The DRIVE-CHEK base can be purchased as a separate item for field mounting or factory assembled to the 1980 camswitch. If factory installation is desired, order as separate item and specify as being assembled in the description.
 
A Gemco single pole double throw switch with mounting plate is supplied with each DRIVE-CHEK unit and can be easily mounted inside the Gemco Rotating Cam Limit Switch enclosure. A Gemco double pole double throw switch can also be supplied.
 

NUMBER
OF
CIRCUITS
A A-S A-R B C D E L WEIGHT
APPROX.
GROSS*
2 thru 4 9.28 12.12 9.38 4.42 6.50 5.00 3.12 .75 12 lb.
5 thru 6 11.72 14.56 11.82 6.86 6.50 5.00 3.12 1.25 14 lb.
7 thru 8 14.16 17.00 14.26 9.30 6.50 5.00 3.12 1.25 16 lb.
9 thru 12 19.04 21.88 19.14 14.18 6.50 5.00 3.12 1.25 21 lb.
13 thru 16 25.45 28.29 25.55 20.60 7.00 5.50 3.40 2.00 35 lb.
17 thru 20 30.33 33.17 30.43 25.48 7.00 5.50 3.40 2.00 46 lb.
21 thru 24 35.21 38.05 35.31 30.36 7.00 5.50 3.40 2.00 55 lb.
25 thru 28 41.62 44.46 41.72 36.76 7.00 5.50 3.40 2.00  
29 thru 32 46.50 49.34 46.60 41.64 7.00 5.50 3.40 2.00  
33 thru 36 51.38 54.22 51.48 46.52 7.00 5.50 3.40 2.00  
37 thru 40 56.26 59.10 56.36 51.40 7.00 5.50 3.40 2.00  
 
NOTE: Add 4 lbs. with Right Angle Gear Reducer. Add 6 lbs. with Straight Drive Gear Reducer.
 
STRAIGHT DRIVE
RATIO X V RATIO X V
1.25:1 2.71 2.07 32:1 3.82 2.26
2:1 2.63 2.07 35:1 3.82 2.32
2.2:1 3.13 2.07 40:1 3.82 1.88
3:1 2.80 2.07 48:1 3.82 2.01
4:1 4.13 2.07 50:1 3.82 2.07
5:1 4.38 2.07 80:1 3.82 2.44
6:1 4.30 2.07 96:1 3.82 2.32
7:1 4.55 2.07 100:1 3.82 2.07
8:1 4.51 2.07 200:1 3.82 2.07
8.5:1 3.99 2.07 400:1 3.82 2.07
10:1 3.82 1.88 500:1 3.82 1.91
12:1 3.82 2.01 600:1 3.82 1.76
14:1 3.82 2.13 1:2 2.63 2.07
15:1 3.82 2.19 1:3 2.80 2.07
16:1 3.82 2.26 1:4 4.13 2.07
20:1 3.82 1.88 1:5 4.38 2.07
24:1 3.82 2.01 1:6 4.30 2.07
25:1 3.82 2.07 1:7 3.34 2.13
28:1 3.82 2.13 1:8 3.57 2.07
30:1 3.82 2.19      
RIGHT ANGLE DRIVE
RATIO V RATIO V RATIO V RATIO V
1:1 1.00 4.75:1 .906 15:1 1.250 36:1 1.437
1.2:1 1.375 5:1 .937 16:1 1.312 40:1 1.562
1.25:1 1.125 6:1 1.062 17:1 1.368 48:1 1.812
1.33:1 1.750 7:1 1.187 18:1 1.437 50:1 1.875
1.5:1 1.250 7.5:1 1.250 20:1 .937 60:1 1.156
1.6:1 1.625 8:1 1.312 24:1 1.062 64:1 1.218
2:1 1.500 10:1 .937 25:1 1.875 72:1 1.344
2.5:1 1.750 12:1 1.062 28:1 1.187 80:1 1.469
3:1 2.00 12.5:1 1.875 30:1 1.250 96:1 1.719
4:1 1.875 14:1 1.187 32:1 1.312 100:1 1.781
 
Consult factory for Gear Reducer dimensions.
 
ENCLOSURE DIMENSIONS
 
NEMA 1 WITH STRAIGHT DRIVE GEAR REDUCER

 
NEMA 1 WITH RIGHT ANGLE GEAR REDUCER

 
NOTE: Assembly shown as standard.
Reducer can be placed at either end.
Shaft extension on end opposite reducer - optional.
 

 
ENCLOSURE DIMENSIONS
NUMBER
OF
CIRCUITS
A A-S A-R B C D E F G H L WEIGHT
APPROX.
GROSS*
2 thru 4 9.69 12.53 978 5.45 10.12 9.38 3.69 2.06 1.58 13.64 .75 18 lb.
5 thru 6 12.24 15.08 12.32 7.89 10.12 9.38 3.69 2.06 1.69 13.64 1.25 22 lb.
7 thru 8 14.68 17.52 14.78 10.33 10.12 9.38 3.69 2.06 1.69 13.64 1.25 32 lb.
9 thru 12 19.56 22.40 19.66 15.21 10.12 9.38 3.69 2.06 1.69 13.64 1.25 50 lb.
13 thru 16 26.02 28.86 26.11 21.62 12.12 11.38 4.69 2.81 1.74 15.64 2.00 65 lb.
17 thru 20 30.90 33.73 30.99 26.50 12.12 11.38 4.69 2.81 1.74 15.64 2.00 75 lb.
21 thru 24 35.78 38.62 35.87 31.38 12.12 11.38 4.69 2.81 1.74 15.64 2.00  
25 thru 28 42.19 45.02 42.27 37.80 12.12 11.38 4.69 2.81 1.74 15.64 2.00  
29 thru 32 47.07 49.91 47.15 42.66 12.12 11.38 4.69 2.81 1.74 15.64 2.00  
33 thru 36 51.95 54.79 52.03 47.54 12.12 11.38 4.69 2.81 1.74 15.64 2.00  
37 thru 40 56.83 59.67 56.92 52.42 12.12 11.38 4.69 2.81 1.74 15.64 2.00  
 
NOTE: Add 4 lbs. with Right Angle Gear Reducer. Add 6 lbs. with Straight Drive Gear Reducer.
 
STRAIGHT DRIVE
RATIO X Y RATIO X Y
1.25:1 4.83 2.45 32:1 5.94 2.64
2:1 4.75 2.45 35:1 5.94 2.70
2.2:1 5.25 2.45 40:1 5.94 2.26
3:1 4.92 2.45 48:1 5.94 2.39
4:1 6.25 2.45 50:1 5.94 2.45
5:1 6.50 2.45 80:1 5.94 2.82
6:1 6.42 2.45 96:1 5.94 2.70
7:1 6.67 2.45 100:1 5.94 2.45
8:1 6.63 2.45 200:1 5.94 2.45
8.5:1 6.11 2.45 400:1 5.94 2.45
10:1 5.94 2.26 500:1 5.94 2.29
12:1 5.94 2.39 600:1 5.94 2.14
14:1 5.94 2.51 1:2 4.75 2.45
15:1 5.94 2.57 1:3 4.92 2.45
16:1 5.94 2.64 1:4 6.25 2.45
20:1 5.94 2.26 1:5 6.50 2.45
24:1 5.94 2.39 1:6 6.42 2.45
25:1 5.94 2.45 1:7 5.46 2.51
28:1 5.94 2.51 1:8 5.69 2.45
30:1 5.94 2.57      
RIGHT ANGLE DRIVE
RATIO Y RATIO Y RATIO Y RATIO Y
1:1 1.00 4.75:1 .906 15:1 1.250 36:1 1.437
1.2:1 1.375 5:1 .937 16:1 1.312 40:1 1.562
1.25:1 1.125 6:1 1.062 17:1 1.368 48:1 1.812
1.33:1 1.750 7:1 1.187 18:1 1.437 50:1 1.875
1.5:1 1.250 7.5:1 1.250 20:1 .937 60:1 1.156
1.6:1 1.625 8:1 1.312 24:1 1.062 64:1 1.218
2:1 1.500 10:1 .937 25:1 1.875 72:1 1.344
2.5:1 1.750 12:1 1.062 28:1 1.187 80:1 1.469
3:1 2.00 12.5:1 1.875 30:1 1.250 96:1 1.719
4:1 1.875 14:1 1.187 32:1 1.312 100:1 1.781
 
Consult Factory for Gear Reducer Dimensions
 
 
 
ENCLOSURE DIMENSIONS
NUMBER
OF
CIRCUITS
A A-S A-R B C D E F G L WEIGHT APPROX.
GROSS
2 thru 4 9.69 12.53 9.78 5.45 10.12 9.38 3.69 2.06 1.57 .75 18 lb.
5 thru 6 12.24 15.08 12.32 7.89 10.12 9.38 3.69 2.06 1.69 1.25 24 lb.
7 thru8 14.68 17.52 14.78 10.33 10.12 9.38 3.69 2.06 1.69 1.25 26 lb.
9 thru 12 19.56 22.40 19.66 15.21 10.12 9.38 3.69 2.06 1.69 1.25 32 lb.
13 thru 16 26.02 28.86 26.11 21.62 12.12 11.38 4.69 2.81 1.74 2.00 50 lb.
17 thru 20 30.90 33.73 30.99 26.50 12.12 11.38 4.69 2.81 1.74 2.00 65 lb.
21 thru 24 35.78 38.62 35.87 31.38 12.12 11.38 4.69 2.81 1.74 2.00 75 lb.
25 thru 28 42.19 45.02 42.27 37.80 12.12 11.38 4.69 2.81 1.74 2.00  
29 thru 32 47.07 49.91 47.15 42.66 12.12 11.38 4.69 2.81 1.74 2.00  
33 thru 36 51.95 54.79 52.03 47.54 12.12 11.38 4.69 2.81 1.74 2.00  
37 thru 40 56.83 59.67 56.93 52.42 12.12 11.38 4 69 2 81 1.74 2.00  
 
NOTE: Add 4 lbs. with Right Angle Gear Reducer. Add 6 lbs. with Straight Drive Gear Reducer.
 
STRAIGHT DRIVE
RATIO X Y RATIO X Y
1.25:1 4.83 2.45 32:1 5.94 2.64
2:1 4.75 2.45 35:1 5.94 2.70
2.2:1 5.25 2.45 40:1 5.94 2.26
3:1 4.92 2.45 48:1 5.94 2.39
4:1 6.25 2.45 50:1 5.94 2.45
5:1 6.50 2.45 80:1 5.94 2.82
6:1 6.42 2.45 96:1 5.94 2.70
7:1 6.67 2.45 100:1 5.94 2.45
8:1 6.63 2.45 200:1 5.94 2.45
8.5:1 6.11 2.45 400:1 5.94 2.45
10:1 5.94 2.26 500:1 5.94 2.29
12:1 5.94 2.39 600:1 5.94 2.14
14:1 5.94 2.51 1:2 4.75 2.45
15:1 5.94 2.57 1:3 4.92 2.45
16:1 5.94 2.64 1:4 6.25 2.45
20:1 5.94 2.26 1:5 6.50 2.45
24:1 5.94 2.39 1:6 6.42 2.45
25:1 5.94 2.45 1:7 5.46 2.51
28:1 5.94 2.51 1:8 5.69 2.45
30:1 5.94 2.57      
RIGHT ANGLE DRIVE
RATIO Y RATIO Y RATIO Y RATIO Y
1:1 1.00 4.75:1 .906 15:1 1.250 36:1 1.437
1.2:1 1.375 5:1 .937 16:1 1.312 40:1  
1.25:1 1.125 6:1 1.062 17:1 1.368 48:1 1.812
1.33:1 1.750 7:1 1.187 18:1 1.437 50:1 1.875
1.5:1 1.250 1 1.250 20:1 .937 60:1 1.156
1.6:1 1.625 8:1 1.312 24:1 1.062 64:1 1.218
2:1
1.500 10:1 .937 25:1 1.875 72:1 1.344
2.5:1 1.750 12:1 1.062 28.1 1.187 80:1 1.469
3:1 2.00 12.5:1 1.875 30:1 1.250 96:1 1.719
41 1.875 14:1 1.187 32:1 1.312 100:1 1.781
 
Consult Factory for Gear Reducer Dimensions
 
ENCLOSURE DIMENSIONS
NEMA 1 w/Resolver

 
NUMBER
OF
CIRCUITS
A A-S A-R B C D E L WEIGHT
APPROX.
GROSS*
2 thru 4 11.72 14.56 11.82 6.86 6.50 5.00 3.12 1.25 14 lb.
5 thru 6 14.16 17.00 14.26 9.30 6.50 5.00 3.12 1.25 16 lb.
7 thru 8 19.04 21.88 19.14 14.18 6.50 5.00 3.12 1.25 21 lb.
9 thru 12 25.45 28.29 25.55 20.60 7.50 5.50 3.40 2.00 35 lb.
 
ENCLOSURE DIMENSIONS
NEMA 4 w/Resolver

 
NUMBER
OF
CIRCUITS
A A-S A-R B C D E F G H L WEIGHT
APPROX.
GROSS*
2 thru 4 12.24 15.08 12.32 7.89 10.12 9.38 3.69 2.06 1.69 13.64 1.25 22 lb.
5 thru 6 14.68 17.52 14.78 10.33 10.12 9.38 3.69 2.06 1.69 13.64 1.25 32 lb.
7 thru 8 19.56 22.40 19.66 15.21 10.12 9.38 3.69 2.06 1.69 13.64 1.25 50 lb.
9 thru 12 26.02 28.86 26.11 21.62 10.12 11.38 4.69 2.81 1.74 15.64 2.00 65 lb.
 
ENCLOSURE DIMENSIONS
NEMA 12 w/Resolver
 

 
NUMBER
OF
CIRCUITS
A A-S A-R B C D E F G L WEIGHT
APPROX.
GROSS*
2 thru 4 12.24 15.08 12.32 7.89 10.12 9.38 3.69 2.06 1.69 1.25 24 lb.
5 thru 6 14.68 17.52 14.78 10.33 10.12 9.38 3.69 2.06 1.69 1.25 26 lb.
7 thru 8 19.56 22.40 19.66 15.21 10.12 9.38 3.69 2.06 1.69 1.25 32 lb.
9 thru 12 26.02 28.86 26.11 21.62 12.12 11.38 4.69 2.81 1.74 2.00 50 lb.
 
 
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