I bought this timing belt pulley with a new stepper motor but it does not have a set screw nor does it have a notch. It does not slide on the motor shaft but clearly is the right size.
Is this some kind of compression fit pulley? If so, how do I put it on without damaging the motor?
https://www.lightobject.com/Nema-23-mot ... -P950.aspx
Compression pulley?
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Jason Chancellor
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Doug Fisher
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You might want to send LO an email.
A couple of users have left reviews that indicated a set screw is not a standard feature.
https://www.lightobject.com/Nema-23-mot ... eviewsPane
A couple of users have left reviews that indicated a set screw is not a standard feature.
https://www.lightobject.com/Nema-23-mot ... eviewsPane
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Anders Troberg
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Three options:
* Send it back and have it replaced.
* Drill a hole, tap it and insert a grub screw.
* If it's metal (looks like it, but I'm not sure from the pic), heat it, slip it on the axle and it'll sit nice and tight when it cools. Don't expect it to come off again, though. This also assumes that it's at "almost fits" tolerances when cold.
* Send it back and have it replaced.
* Drill a hole, tap it and insert a grub screw.
* If it's metal (looks like it, but I'm not sure from the pic), heat it, slip it on the axle and it'll sit nice and tight when it cools. Don't expect it to come off again, though. This also assumes that it's at "almost fits" tolerances when cold.
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Jason Chancellor
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Thanks, I took #3 approach and it worked fine. It is not going anywhere!Anders Troberg wrote: Wed Mar 27, 2019 Three options:
* Send it back and have it replaced.
* Drill a hole, tap it and insert a grub screw.
* If it's metal (looks like it, but I'm not sure from the pic), heat it, slip it on the axle and it'll sit nice and tight when it cools. Don't expect it to come off again, though. This also assumes that it's at "almost fits" tolerances when cold.
Thanks!
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Anders Troberg
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- Accessories: Compressor, water pump (and bucket connected to tap and drain, so I can easily refill with cold water on the fly), exhaust fan
No problem, just happy to help. Heat fitting is, if tolerances are good, an amazingly good way to fit things together. The forces holding that pulley to the axle now are huge, much stronger than a screw would ever be.