Model: 18G4R-AA1-A0

Motor-tachometer Generator

Properties:

Overall Length
3.686 inches
Overall Width
1.750 inches
Shaft Diameter
0.176 inches single end and 0.177 inches single end
Current Type
Ac input
Teeth Quantity
15 single end
Maximum Operating Altitude Rating
50000.0 feet
Inclosure Feature
Totally enclosed
Mounting Method
Clamp ring
Mounting Facility Type And Quantity
1 clamp collar
Excitor Type
Separately excited
Calibration Speed In Rpm
1000.0
Cooling Method
Nonventilated
Full Tooth Length
0.3960 inches single end
Calibration Voltage Output Type In Volts
0.55 ac
Torque Rating And Type
2.9 inch-ounces stalled
Inclosure Specificationification
Commercial
Control Field Voltage Type And Rating In Volts
29.0 ac and 58.0 ac
Features Provided
Horizontal mounting position and vertical mounting position
Power Rating
18.000 watts input
Length Of Shaft From Housing
0.396 inches single end
Tempurature Rating
-55.0 operating degrees celsius and 125.0 operating degrees celsius
Rotor Speed Rating In Rpm
9500.0 single no load
Current Rating In Amps
0.285 single input
Connection Type And Voltage Rating In Volts
115.0 line to neutral single input
Shaft End Characteristic
A17 single style single end
Phase
Two input
Frequency In Hertz
400.0 output
Terminal Type And Quantity
10 screw
NSN
6105-01-034-3859
Part Number
18G4R-AA1-A0
Description
Motor-tachometer Generator
CAGE
10112

An item which is an electrical rotating machine combining both control motor and tachometer generator action. The control motor and tachometer generator may be contained in the same or separate housings. It is designed for servo application where instant response to input signal is essential. It is generally used in circuits where the output potential from the tachometer generator is fed back to prevent excessive oscillation and for assuring high stability in a servo loop. Excludes dynamotor; and motor-generator.

Part 18G4R-AA1-A0 NSN 6105-01-034-3859

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
28454
FIIG:
A271A0
Concept No.:
App. Key:
P
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8412809000
  • SITC: 71893
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Engines and motors, nesoi

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