Model: 3B7721

Direct Current Motor

Properties:

Overall Height
31.188 inches
Overall Length
54.500 inches
Overall Width
24.250 inches
Thread Length
1.3120 inches identical ends
Taper Length
4.8750 inches identical ends
Keyway Width
0.7500 inches identical ends
Keyway Depth
0.7500 inches identical ends
Shaft Diameter
2.8750 inches identical ends
Keyway Length
4.8750 inches identical ends
Duty Cycle
Intermittent
Inclosure Feature
Watertight
Winding Type
Compound wound
Mounting Method
Fixed base
Mounting Facility Type And Quantity
4 unthreaded hole
Time Interval
30.0 minutes on
Cooling Method
Ambient air
Current Rating Method
Load
Inclosure Specificationification
Mil-std-108
Features Provided
Vertical mounting position
Power Rating
50.0000 horsepower output
Taper
1.500 per foot in inches identical ends
Length Of Shaft From Housing
6.250 inches single end
Shaft Center To Mounting Surface Distance
11.875 inches single end
Center To Center Distance Between Mounting Facilities Parallel To Length
27.750 inches
Tempurature Rating
40.0 operating degrees celsius
Rotor Speed Rating In Rpm
1900.0 single full load
Center To Center Distance Between Mounting Facilities Parallel To Width
18.500 inches
Current Rating In Amps
181.000 single input
Connection Type And Voltage Rating In Volts
230.0 line to neutral single input
Shaft End Characteristic
A2 first style identical ends and a29 second style identical ends
Terminal Type And Quantity
6 wire lead
NSN
6105-00-504-0034
Part Number
3B7721
Description
Motor,direct Current
CAGE
79500

A motor which is designed for operation from a direct current source. Excludes motor, engine starter, electrical. See also motor, control.

Part 3B7721 NSN 6105-00-504-0034

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16350
FIIG:
A271A0
Concept No.:
1
App. Key:
J
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:
70.0
WCC:
590
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8501324000
  • SITC: 71620
  • End Use: Industrial engines
  • NAICS: 335312
  • USDA: 1

Freight Class: Dc motors, exceeding 14.92 kw (20 hp) but not exceeding 75 kw (100 hp)

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