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Thread: Linked belting
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8th July 2014, 10:26 PM #1
Linked belting
Hi
Everyone seems to give the linked belts top marks - smoother running . I would like to try using it in B section size but it appears to be fairly hard to find . Does anyone know of a supplier in Melbourne ? Mike
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8th July 2014 10:26 PM # ADSGoogle Adsense Advertisement
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8th July 2014, 10:29 PM #2SENIOR MEMBER
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A bit of a segway but on the topic of belts:
Does anyone know where to get poly-v belts easily? I'm looking for J section, probably 4 ribs, and about 381mm long (150J4 in yank speak). They are available for a few bucks in the US but shipping is a killer.
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8th July 2014, 11:05 PM #3
carbatec
I see carbatec has them but the price Power Twist Link V-Belt 1.2m : CARBA-TEC
Opinions on the PM forum seem to express that these belts are not as good as first thought . Mike
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9th July 2014, 12:08 AM #4Senior Member
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Pippin,
I asked about J section recently at a local bearing supplier (ABC Bearings, Silverwater) and they said there would not be a problem.
I was given a photocopied page from a Contitech catalogue showing lengths available. Just looked now and 381 is a standard length. Apparently the belts are made as "sleeves" having dozens of ribs, and someone (presumably the supplier) just parts off as many ribs as you want. For a given length, pricing is per rib. Contitech is part of the Continental rubber conglomerate.
Cheers,
Bill
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9th July 2014, 01:41 AM #5Senior Member
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9th July 2014, 10:04 AM #6Cba
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No. But you can order it from the UK for $32 per meter, plus $12 postage. Several times I was surprised to have stuff from the UK arrive in Melbourne faster than stuff from Sydney.
NUT Link V Belt Link Belting B Section 17mm Wide Link Type Lathe Machine Belt | eBay
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9th July 2014, 11:52 AM #7GOLD MEMBER
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I currently use cogged belts which reduce vibration considerably on gear with smaller pullies. It allows the belt to conform to a smaller dia during rotation.
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9th July 2014, 12:38 PM #8
COGGED
Some people are using automotive type V belts , the "cogged " type, with good results .
My request is based on my recent experience with my PREMO lathe . Works fine and smooth on the lower 4 speeds , eg with the motor belt fitted on the twin section motor / counter pullies - on the low speed pullies. But when the belt is on the higher speed pullies a vibration is apparent . By fitting a new belt and loosening the tension, things improved . I also static balanced the 14" twin alumimium counter pulley , this has improved things more to the point where the lathe is useable. The B section V belt on the headstock cone is probalbly 30 years old ! I have to remove the spindle as the small back gear gear has 2 broken teeth . I need to make up a pusher device using a bottle jack, to push the spindle out , it has tapered roller bearings . Mike
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9th July 2014, 01:32 PM #9
My bandsaw has a small belt, smaller than A section. SPZ? Anyway it was a standard v belt when i got it, a bit old and hard. The thing run as rough as, i thought it was a balance issue with one of the 5 step cast pulleys. Got a new cogged belt and the thing is as smooth as, i could not believe the difference it made.
The Holbrook runs 3 B section linked belts from the gearbox up to the head. They seem to be very smooth, even at high speeds. At certain speeds they do seem to "rattle" a little bit, i wonder if it is 2 of the belts hitting each other.
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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18th August 2014, 01:21 AM #10
I have been looking at linked belts ad it seems there are a few designs, the nut style with pin, the carbatec type which seems to twist lock and quite a flat one from the US which also has no pin. Anyone trialled the different types? The US one looks like it would run smoother.
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18th August 2014, 09:26 AM #11GOLD MEMBER
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18th August 2014, 12:37 PM #12SENIOR MEMBER
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20th August 2014, 07:20 AM #13SENIOR MEMBER
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A guy on youtube called Matthias Wandel just did a review and comparison of v belts vs linked belts. Everything I have seen from his videos has been pretty darn thorough.
His take on them is that the vibration and noise comes from the normal v belts taking a set when they are left on the smaller pulleys for too long. As you ramp up the speed on them again, that is usually the cause of the problems.
He got around this by getting a more flexible v belt. Its worth a google.
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20th August 2014, 09:49 AM #14GOLD MEMBER
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20th August 2014, 10:13 AM #15.
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