Engineering Design Data Sheets

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Engineering Design

Transcript of Engineering Design Data Sheets

  • June 2008 Page 1

    Data Sheets:

    Bevel Gears

    Use W without (*) for stress analysis

    Strength :

    Bending:

    Contact Strength:

    Z

    NYY

    YFPFP

    B

    BFPH

    H

    \

    \

    :strength corrected The2 gradefor MPa 24.410.33 1 gradefor MPa 48.143.0

    =

    +=

    +=

    Z

    HNYYCZ

    HP

    B

    BHPHH

    \HP

    \

    strengthcontact corrected The2 gradefor MPA 86.2032.51

    1 gradefor MPa 89.16235.2

    =

    +=

    +=

    Hsvt KKKK

    bmJW

    0=

    xcHsovIbdW

    pc CKKKKCp

    t=

  • June 2008 Page 2

    J-Factor

    I-Factor

  • June 2008 Page 3

    Helical Gears

  • June 2008 Page 4

    ap = ag = mn and = t

    Strength:

  • June 2008 Page 5

    Worm Gearing:

    Note that: dg = = dG

    Bearings

    a

    FF

    LL

    =

    12

    21 a

    LLFF

    1

    2

    112

    =

  • June 2008 Page 6

    Take LR = 500 hours, and nR = 100/3 rpm

    Clutches:

    Uniform Wear theory:

    Uniform pressure theory:

    Disk Brakes: Uniform Wear

    a

    R

    D

    R

    DeqAR

    n

    n

    LLFkC

    /1

    =

  • June 2008 Page 7

    Uniform pressure

  • June 2008 Page 8

  • June 2008 Page 9