Results 1 to 18 of 18

Thread: Spur gear?

  1. #1
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8

    Spur gear?

    Hi Iím trying to find a gear 26t 49mm O/D

  2. #2
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    Iíve attached a picture
    Attached Images Attached Images

  3. #3
    Technical Fellow jboggs's Avatar
    Join Date
    Mar 2011
    Location
    Myrtle Beach, SC
    Posts
    863
    Where have you looked?

  4. #4
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    I’ve tried the 3 different companies, plus I’ve spent hours looking on the internet with no luck!! Any help would be appreciated.

  5. #5
    Technical Fellow jboggs's Avatar
    Join Date
    Mar 2011
    Location
    Myrtle Beach, SC
    Posts
    863
    Have you identified whether it's metric or imperial (inch) standard?

  6. #6
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,402
    I doubt it's an off-the-shelf gear.

    Probably need to find somebody that can reproduce it from what you have
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

  7. #7
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    Quote Originally Posted by Kelly Bramble View Post
    I doubt it's an off-the-shelf gear.

    Probably need to find somebody that can reproduce it from what you have
    Itís used to to drive a limit switch on an electric motor, pretty sure they would be massed produced, if you knew the part number probably would find it straight away.

  8. #8
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    This is the switch
    Attached Images Attached Images

  9. #9
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    No I haven’t, how would I go about this?

  10. #10
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    Quote Originally Posted by jboggs View Post
    Have you identified whether it's metric or imperial (inch) standard?
    No I haven’t, how would I go about this?

  11. #11
    Technical Fellow jboggs's Avatar
    Join Date
    Mar 2011
    Location
    Myrtle Beach, SC
    Posts
    863
    I agree with Kelly. I don't think its an off-the-shelf gear. From the photo it looks like it is custom made for that particular product. You could try the switch manufacturer, or whoever owns them now.

  12. #12
    Associate Engineer
    Join Date
    Mar 2021
    Posts
    8
    The switch and motor manufacturers are the same people. Itís a basic setup with a gear from the motor driving an intermediate gear which drives the switch all the same o/d. Iíve taken a picture of the maker mark.
    Attached Images Attached Images

  13. #13
    Quote Originally Posted by willrnewman View Post
    This is the switch
    From that picture it looks to be die cast and probably in aluminum or zinc.

    If a replacement cannot be found then you would take the gear to a machine shop and ask for a reverse engineered gear built from the existing example.

  14. #14
    Project Engineer
    Join Date
    Feb 2011
    Location
    Spokane, WA
    Posts
    129
    I've had to make something like this a few times recently.

    It looks like the gear has 26 teeth; a fairly normal configuration.
    The only other thing a machinist would need to know is the diameter.

    Then I'd go to Boston Gear website, and find the one that is closest to the bore diameter / hub configuration, and modify that to fit.
    A fairly simple job really. (uumm... if you have the proper tools )

  15. #15
    Project Engineer
    Join Date
    Feb 2011
    Location
    Spokane, WA
    Posts
    129
    Went back and read the original post.
    (should've done that first).

    26t and about 1 15/16" OD.
    That doesn't seem difficult to find.

    Just have to modify (probably) the hub/bore to fit your application.

  16. #16
    Associate Engineer
    Join Date
    Aug 2020
    Posts
    2
    Good luck in finding. It happens so often with me, as soon as a certain thing is needed, then it is nowhere to be found.Recently, I needed a linear actuator to automatically close the door and barely found a website where I could order exactly the one I needed. But I spent 3 days looking

  17. #17
    Associate Engineer
    Join Date
    Apr 2021
    Location
    Germany
    Posts
    6
    Hi
    I'm new in this forum but it seems to me you cannot find an off-the-shelf part why you don't use planetary gear for reducing the numbers of turn?
    Quote Originally Posted by willrnewman View Post
    Hi I’m trying to find a gear 26t 49mm O/D
    Enable GingerCannot connect to Ginger Check your internet connection
    or reload the browserDisable in this text fieldRephraseRephrase current sentenceLog in to edit with Ginger◊

  18. #18
    Associate Engineer
    Join Date
    Apr 2021
    Posts
    2
    Are you set on 26t , 49 O/D ? may have options for you

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •