Click here to make tpub.com your Home Page

Page Title: Reduction Gear
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 




img
MIL-P-19131(SHIPS)
The horsepower rating of each motor shall be
not less than that required by the pump under maximum power conditions as
..
determined by actual tests of identical or similar equipment If such data is
not available the required horsepower rating of the motor shall be determined
by the following formula:
If the motor hp. as determined by the above formula is less than 2 hp., then
the value determined by the above formula shall be multiplied by an additional
factor of:
The actual motor rating shall be in accordance with Navy standard motor ratings,
but not less than the above formula hp.
3.5.4 Reduction gear.- Where gears are used, they shall be of the spur,
single or double helic , or worm type in accordance with Specifica-
tion MIL-G- 17859,
3.5.5 Controllers. - Motor controllers shall be in accordance with Speci
fication MIL-C-2174 for direct current and Specification MIL-C-2212 for alter-
nating current. Unless otherwise specified in the contract or order, controllers
shall have the following features:
Manual.
(a) Operation
Motor starting.
(b) Function
Continuous.
(c) Duty
Dripproof.
(d) Enclosure
(e) Protective features
Thermal overload and
low voltage protection.
Across-line direct current controllers are permissible for motors rated 1/2 to
1 horsepower, provided the motor is properly designed and the inrush currents
(as determined by dividing the terminal volts by armature circuit resistance of
the motor) do not exceed 10 times the rated current of the motor.

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business