Model: VBM2-81

Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round d
Shoulder Diameter
Between 1.9980 inches and 1.9990 inches
Pilot Diameter
Between 0.5900 inches and 0.6000 inches
Second Shoulder Diameter
Between 1.9985 inches and 1.9995 inches
Second Shoulder Length
0.1720 inches
Overall Length
Between 4.2430 inches and 4.2940 inches
Flange Diameter
Between 2.2490 inches and 2.2500 inches
Flange Thickness
0.2500 inches
Body Diameter
Between 1.9850 inches and 1.9900 inches
Shaft Diameter
0.2402 inches single shaft and 0.2405 inches single shaft
Shaft Length
0.6930 inches single shaft and 0.7190 inches single shaft
Maximum Tempurature Rise
65.0 degrees celsius
Body Size
23
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
60.0
Rotor Input Current Rating
210.0 milliamperes
Rotor Input Electrical Power Rating
5.0 watts
Zro Resistance In Ohms
132.00
Zso Resistance In Ohms
98.00
Zrs Resistance In Ohms
249.00
Zso-9 Designator Resistance In Ohms
94.00
Electrical Error Angular Range In Minutes
-8.0/+8.0
Spline Tooth Quantity
22 single shaft
Actuator Friction Torque At Minus 55 Deg Celsius
0.50 inch-ounces
Torque Gradient Per Angular Deg
0.130 inch-ounces
Pilot Length
0.0460 inches
Shoulder Length
0.2500 inches
Aft Of First Flange Diameter
Between 1.9985 inches and 1.9995 inches
Mounting Surface To Terminal End Distance
Between 3.4350 inches and 3.4450 inches
Spline Tooth Diametral Pitch
96 single shaft
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Shaft Thread Length
0.2660 inches single shaft
Plus J Zro Reactance In Ohms
494.00
Plus J Zso Reactance In Ohms
311.00
Plus J Zrs Reactance In Ohms
79.00
Shaft Type
Spline w/threads single shaft
Transformation Ratio
0.783 rotor to stator
Plus J Zso-9 Designator Reactance In Ohms
113.00
Shaft Thread Size
0.250 inches single shaft
Test Data Document
81349-mil-s-12472 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
7 screw
Specification Data
81349-mil-s-12472 government specification
NSN
5990-00-519-3421
Part Number
VBM2-81
Description
Synchro,transmitter
CAGE
H0203

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the stator into a receiver synchro, a control transformer or differential synchro is dependent upon the position of its rotor. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part VBM2-81 NSN 5990-00-519-3421

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02073
FIIG:
A07800
Concept No.:
1
App. Key:
H
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:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9014900000
  • SITC: 87412
  • End Use: Marine engines, parts
  • NAICS: 334511
  • USDA: 1

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