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  #1  
Old Mon 04 October 2010, 22:36
DTGuitars
Just call me: David
 
Rogersville
United States of America
Source for timing pulleys

Hey guys, I just got my MotionKing steppers in today, and was trying to find a reasonable source for pulleys to build my belt reduction. The MK motors have a 14mm shaft. I want to go either 3:1 or 4:1 on reduction (still debating). After searching for some time (all afternoon), I have struck out in finding 14mm bore timing pulleys. Any suggestions for a US source for these critters?
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  #2  
Old Tue 05 October 2010, 03:19
jwt
Just call me: John
 
Wexford
Ireland
I gave up too and ended up using 10mm i/d pulleys and resigning myself to drilling them out.

John
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  #3  
Old Tue 05 October 2010, 04:19
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
I used 15 tooth XL and bore it for 14mm shaft, my motor had a keyway so I made a passage in pulley 2.5mm for the key on the mill also. and it did not break.
It works ok.
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  #4  
Old Tue 05 October 2010, 07:05
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Check out this site

https://sdp-si.com/eStore/

Takes some digin around but here are some numbers ( for 4:1 belt drive). They will get you started.

the 72 tooth pulley is part number A6A3-72NF03716
the 18 tooth pulley is part number A6A3-18H3716
the belt is a 200xl with Kevlar reinforcement part number A6B3-080037
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  #5  
Old Tue 05 October 2010, 08:39
DTGuitars
Just call me: David
 
Rogersville
United States of America
Thanks guys, it looks like I'll follow suit and bore the hole out to fit.

Mike, I appreciate the link and part #'s. I looked on thier site yesterday, but didn't see any 14mm bores, so I didn't pursue things very deeply. I'll order these this week, and get my reductions built.
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