Belt drive or Chain drive?

Discussion in 'Motorized Bicycle General Discussion' started by Kestrel Motors Inc., Nov 22, 2012.

?

Belt drive or Chain drive

  1. Belt drive

    16 vote(s)
    66.7%
  2. Chain drive

    8 vote(s)
    33.3%
  1. Kestrel Motors Inc.

    Kestrel Motors Inc. New Member

    Joined:
    Oct 18, 2011
    Messages:
    179
    Likes Received:
    1
    Which do you prefer Belts or chains? I myself prefer the older style of the belts. But why do you like either of them?
     
  2. dracothered

    dracothered New Member

    Joined:
    Jul 25, 2012
    Messages:
    973
    Likes Received:
    0
    How about both? Belt primary and chain secondary drive. That is what I am putting on my 58' Schwinn Wasp.
     
  3. Kestrel Motors Inc.

    Kestrel Motors Inc. New Member

    Joined:
    Oct 18, 2011
    Messages:
    179
    Likes Received:
    1
    Well, truth be told, that's what I did too, only reversed! Chain primary and belt secondary.
     
  4. dracothered

    dracothered New Member

    Joined:
    Jul 25, 2012
    Messages:
    973
    Likes Received:
    0
    Do you have a centrifugal clutch or a friction drive with the belt secondary?
     
  5. msrfan

    msrfan Active Member

    Joined:
    Sep 17, 2010
    Messages:
    1,714
    Likes Received:
    8
    I prefer belt primary and final drive for most of my bikes because of low noise and maintenance, no oil slinging and alignment isn't as critical.


    [​IMG]

    Chains offer more efficient power transfer and don't stress your bearings as much as a tight belt, so I may use chains on my next race bike. I have one bike with belt primary and chain final.


    [​IMG]

    I also have one with chain primary and final.


    [​IMG]


    After the last race at Grange, I'm seriously considering a friction drive racer.
     
  6. JonnyR

    JonnyR New Member

    Joined:
    May 13, 2012
    Messages:
    1,203
    Likes Received:
    0
    currently use chain but am thinking about making a dual T belt drive in the future for a 4 stroke bike
     
  7. Kestrel Motors Inc.

    Kestrel Motors Inc. New Member

    Joined:
    Oct 18, 2011
    Messages:
    179
    Likes Received:
    1
    I have a cent. clutch on the engine with a chain running to the jack-shaft, then a belt to the back wheel.

    [​IMG]
     
  8. ducatiluke

    ducatiluke New Member

    Joined:
    Jan 20, 2009
    Messages:
    39
    Likes Received:
    0
    i like belt primary
    no oil sling near me
    also very quiet chains are very noisy above 3000 rpm
    i also use the belt as a slipper clutch
    very smooth rreliable set up

    http://www.youtube.com/watch?v=Z1FBrfgP_W0
     
  9. bigbutterbean

    bigbutterbean New Member

    Joined:
    Jan 31, 2011
    Messages:
    2,417
    Likes Received:
    0
    I'll be running chain primary and secondary on my 98cc build, because that's what the agk gearbox and clutch comes set up for, and I'm fine with that. If you want to avoid oil sling, just wipe your chain down after you lube it. That's what I plan to do.
     
  10. ocho ninja

    ocho ninja New Member

    Joined:
    Jan 14, 2012
    Messages:
    564
    Likes Received:
    0
    Dumb question, but we're do you guys get your belts and pulleys?
    I know we're to get the sheaves, but I'm not sure how to get the right belt and pulley?
    I was thinking of using the agk jackshaft, chain primary and belt secondary for final drive.
     
  11. racie35

    racie35 Active Member

    Joined:
    Nov 17, 2012
    Messages:
    1,699
    Likes Received:
    0
    by the size of the shaft used.....you can find plenty on ebay....bunches for 3/4 5/8 and 1" slotted shafts
     
  12. BikeBerryKelci

    BikeBerryKelci New Member

    Joined:
    Oct 25, 2012
    Messages:
    37
    Likes Received:
    0

    Thats a pretty intense looking build right there! Looks Awesome, if you do change up your motors keep us posted on how they are running and what you like in the differences..xx.
     
  13. GearNut

    GearNut Active Member

    Joined:
    Aug 19, 2009
    Messages:
    5,105
    Likes Received:
    1
    I prefer dual belt, but so far I have belt primary and chain secondary.
     
  14. racie35

    racie35 Active Member

    Joined:
    Nov 17, 2012
    Messages:
    1,699
    Likes Received:
    0
    I like belts too
     
  15. WSNTME

    WSNTME New Member

    Joined:
    Mar 4, 2013
    Messages:
    7
    Likes Received:
    0
    I just got done swapping from a chain/chain setup to a belt/belt setup and I am quite pleased I must say! The belt setup is much more quiet and clean (no lube). I was a bit of trial and error to get the correct size final drive belt but in the end its sweet. The chain was nice in that regard since the tensioner could make up for any slack.

    Thanks to mr Helmutt for the help and nudge in the belt direction
     
  16. Kestrel Motors Inc.

    Kestrel Motors Inc. New Member

    Joined:
    Oct 18, 2011
    Messages:
    179
    Likes Received:
    1
    Yeah, I must say I have a sweet love for all pulleys and belts XD, I don't know why, I just like them much better than chains. Chains have good torque transmission, and belts tend to slip a little, but that's all part of the fun!
     
  17. msrfan

    msrfan Active Member

    Joined:
    Sep 17, 2010
    Messages:
    1,714
    Likes Received:
    8
    Exactly right, I've had excellent service from all my belt drives. Just have to occasionally use chains or combinations when the design calls for it.
     
  18. MEASURE TWICE

    MEASURE TWICE Active Member

    Joined:
    Jul 13, 2010
    Messages:
    2,105
    Likes Received:
    21
    True the belt uses more friction to work, but is quieter. Also it is less likely to come off the pulley than a chain if gone askew.

    I found that out in the most extreme manner. I had not made one pulley in line enough with another. The tension of the belt along with the rotation also adding to the force made a jack shaft slip sideways as at the time I had used one side with out a bushing. You see I had just used on the left side a pulley with key and set screw hold it in place. The set screw did not loosen, but the force had the jack shaft slip through the pulley bore anyway. Then eventually the right side pillow bearing was all that was holding the shaft. The other left side pillow bearing had come out just past its holder, and the shaft scraping metal on a cover shield I made for safety.

    Incredibly I just thought I had lost tension on the belt. The scores in the shaft are in an area that is normally outside to the left unused. I replace with new the bearings and added the bushing to buttress the side of the pulley as there is no room between the pulley and the right side pillow bearing.

    Lining up the belt more to remove this sideways force altogether and still not have it scrape the tire or the frame is ultimately what is to prevent this. I learned the pulley does not serve as a bushing with the kind of holding power as these single piece split collar bushings. The split collar type do not have the set screw mar the jack shaft and I got them for about $2.50 each, definitely worth it.

    MT
     
    #18 MEASURE TWICE, Apr 10, 2013
    Last edited: Apr 10, 2013
  19. MEASURE TWICE

    MEASURE TWICE Active Member

    Joined:
    Jul 13, 2010
    Messages:
    2,105
    Likes Received:
    21
    2 belts and 1 chain. The short piece of chain between now bottom and top jack shafts allow no slip when using gears of small size (1.7" Pulley no good for uphill climbing the trails). I'd vote 1/3 chain 2/3 belt, but that's not an option.

    http://motorbicycling.com/showthread.php?t=29678&page=16

    Measure Twice
     

Share This Page