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technical advice

DC Specification Form

Company:
Contact:
Address:
Address2:
City:
State:   Zip:
Phone Number:
Fax Number:
E-mail:

Estimated Annual Usage:
Part or Drawing Number:

 
Application:
a. Customer Application
b. What mechanism is the motor driving in the application?
c. If Existing, who is current supplier?
d. Are there any problems or concerns with the existing supplier's motor?
e. Is unit available for test? Yes No

 
Performance Requirements:
a. Rated Voltage b. Voltage Range
c. Output Torque est. by: d. Start Torque:  
e. Run Torque:   f. RPM at No Load:
g. RPM at Load  
h. Will gearmotor be stalled? Yes No

 
Environment:
a. Ambient Temp.: b. Humidity Level:
c. Full Enclosure: d. Degree of Ventilation:
e. Corrosives: f. Other:
g. Anything else we should know about the location of our motor in the application?

 
Duty Cycle/ Life: Describe Other:
a. Standard Duty Cycle: ON Seconds OFF Seconds
b. Most Demanding: ON Seconds OFF Seconds
c. Minimum Life Required: in cycles in hours
d. For Reversing Applications, what is minimum time off between reversals?

 
Power Supply:
a. Rated Voltage:
b. Maximum Current Limit:
c. Is the supply filtered? Yes No
d. Supply Type: Frequency: kHz

 
Overhung Load: Yes No
a. How much?  l lbs
b. Distance from mounting surface:

 
Axial Thrust Load: Yes No
a. How much?  l lbs
b. Push In Pull Out Both

 
Output Shaft Requirements:
a. Shaft OD:
b. Direction of rotation: Viewed from:
c. Shaft detail:
d. Extension from mounting surface:
Cover Side: Motor Side:

 
Feedback Requirements: Yes No
a. Tachometer
    DC Tachometer Vdc/ kRPM
    AC Tachometer Pulses/Rev
b. Encoder : Hall Effect / Optical:
    1 Channel 2 Channels
    Marker Pulse PPR

 
Sound/Vibration Requirements:
 
Method of Test:

 
Gear Box Selection:
a. Do you require a particular Merkle-Korff Style gearbox?: Yes No
b. May we select?: Yes No

 
EMI/ RFI Considerations: Emissions Type:
a. EMC Directive/ Harmonized Standards Applied:
b. Type of motor enclosure :

 
Mounting Position:
a. Indicate orientation in your application as shown below:
Type Description Dimension A Dimension B Dimension C Dimension D
  Shaft
Diameters		 1/4" 5/16"
& 3/8"		 1/4" 5/16"
& 3/8"		 1/4" 5/16"
& 3/8"		 1/4" 5/16"
& 3/8"
F

T

W



H

K

S 		Flat

Tongue

Woodruff Key



Hole

Square Key

Slot 		.046" ±.005

.085"/.087"

ANSI STD.
NO. 202.5
(1/16"x5/16")

.094"/.097"

Nom.Key
Width 1/16"
.094"/.097"		 .046" ±.005

.116"/.118"

ANSI STD.
NO. 204
(1/16"x1/2")

.125"/.128"

Nom.Key
Width 3/32"
.125"/.128"		 EXT MINUS
.062"/.077
.151"/.161"


.108"/.113"

EXT.
/2 ±.005"

.035"/.040"

.151"/.161"		 EXT MINUS
.062"/.077
.182"/.192"


.170"/.175"

EXT.
/2 ±.005"

.053"/.058"

.182"/.192"




.615"
/.0630"



.0615"
/.0630"




.615"
/.0630"



.0928"
/.0943"



EXT.
/2




EXT. Minus
.156"±.015"
-.000



EXT.
/2




EXT. Minus
.281"±.015"
-.000
 

   .   .   .

  Gearmotor Construction
 
  Glossary & Abbreviations
 
  Conversion Formulas
 
  Calculating Overhung Load
 
  How to Select a Gearmotor
 
  Accessories
 
  Options
 

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25 NorthWest Point Blvd - Suite 900, Elk Grove Village, IL 60007   P: 847.439.3760   F: 847.439.3963   sales@merkle-korff.com