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    Type of Gears

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    zezo_am
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    ذكر عدد الرسائل : 141
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    تاريخ التسجيل : 11/09/2007

    Type of Gears

    مُساهمة من طرف zezo_am في الأربعاء 29 فبراير 2012, 12:52 am

    انواع التروس واشكالها بالصور Type of Gears
    بعض المواقع التى تفيد في تصميم التروس وانواعها

    1- http://www.engineersedge.com/gears/gear_types.htm

    2- http://www.gearsandstuff.com/types_of_gears.htm

    3- http://www.gears-manufacturers.com/gear-types.html

    4- http://www.arrowgear.com/stockgears/stockgears_geartype.htm

    5- http://www.maharashtradirectory.com/searchresult.asp?productid=3157













    Types Of
    Gears
    Gear Type
    Description
    Photo
    Spur Gears Spur gears are
    by far the most common type of gear and with the
    exceptions of the "cog" the type of gear that has been
    around the longest.
    Spur gears have teeth that run perpendicular to the
    face of the gear.








    Click Image To Enlarge
    Helical Gears Helical gears
    are very similar to spur gears except the teeth are not
    perpendicular to the face. The teeth are at an angle to
    the face giving helical gears more tooth contact in the
    same area.


    Helical gears can also be used on non-parallel shafts to
    transmit motion.
    Helical gears tend to run quieter and smoother than
    spur gears due to the increased number of teeth in
    constant contact at any one period of time.








    Click Image To Enlarge
    Herringbone
    Gears
    Herringbone
    gears resemble two helical gears that have been placed
    side by side. They are often referred to as "double
    helicals".One benefit of herringbone gears is that it
    helps to avoid issues related to side thrust created
    with the use of helical gears.







    Click Image To Enlarge
    Bevel / Miter
    Gears
    Bevel gears
    are used mostly in situations that require power to be
    transmitted at right angles (or applications that are
    not parallel). Bevel gears can have different angles of
    application but tend to be 90°.







    Click Image To Enlarge
    Worm Gears Worm gears are
    used to transmit power at 90° and where high reductions
    are required. The worm resembles a thread that rides in
    concaved or helical teeth.







    Click Image To Enlarge
    Internal Gears Internal gears
    typically resemble inverted spur gears but are
    occasionally cut as helical gears.







    Click To Enlarge
    Racks A rack is
    basically a straight gear used to transmit power and
    motion in a linear movement.







    Click On Image To Enlarge
    Face Gears Face gears
    transmit power at (usually) right angles in a circular
    motion. Face gears are not very common in industrial
    application.






    Involute
    Splines
    Splined shafts
    and hubs are usually used as connectors in many
    different types of applications. One of the most common
    applications is to connect motors to gear reducers. They
    may also be used in transmissions.Involute splines
    resemble spur gears, but tend to have different pressure
    angles.








    Click Image To Enlarge
    Straight Sided
    Splines
    Straight sided
    splines often serve the same function as involute
    splines but have "straight sided" teeth instead of
    involute teeth.







    Click On Image To Enlarge
    Sprockets Sprockets are
    used to run chains or belts. They are typically used in
    conveyor systems.







    Click Image To Enlarge



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