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15th June 2004, 08:41 PM #1
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Hafco BP-16A upper blade guide query
I am new to bandsaws and I'm curious about the roller bearings on my BP-16A.
In most pictures I see the bearings are edge-on to the blade so they rotate normally (for a roller bearing) if in contact with the moving blade.
On the BP-16A the bearings are edge on to the blade which looks a bit odd to me. I was looking at a 20inch bandsaw the other day and it had a similar setup bu rather than bearings it used rotating disks beside the blade.
Clint
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15th June 2004 08:41 PM # ADSGoogle Adsense Advertisement
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15th June 2004, 09:10 PM #2
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On the 20" ones I've seen the discs are solid on their shaft, they don't rotate at all.
The other ones with the bearings have a bearing on each side of the blade, the outer circumfrence supporting the blade when going off track and one accross the rear of the blade
enjoy
regards
joe
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15th June 2004, 09:51 PM #3
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I was reading in AWR no 42 - they review a bunch of 18" 's but essentially the same as the 16" - the reviewed a jet, a carba tec , a hafco & a holz profi. they also mention that the carbatec/hafco (same machine different labels) do this and its not a big deal - works ok but adjustment is a bit funny - no micro adjustment screws thus need to do it manually. evidently the guy who reviews it reckons that they are second best to the other tyope of system you mention (as per the jet and Holz machnes) as they increase the friction on the blade....
he reckons the hafco/caba tech is a very safe unit BTW - he quite likes the blade tensioner and rule system.
Hey has anyone looked at the timbecon cattledog ? they have a "Sherwood" brand which looks for all money like carbatech rebadged... comments ????
cheersZed
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15th June 2004, 10:02 PM #4
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Zed, you are welcome to believe that. I won't because I live in Perth.
Enjoy
Regards
Joe
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15th June 2004, 10:08 PM #5
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gateip Im not sure what you are refering to mate.
Zed
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15th June 2004, 10:38 PM #6
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Zed I quote your request for comments:
Sherwood" brand which looks for all money like carbatech rebadged... comments?????
I commented
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16th June 2004, 10:50 AM #7
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ClintO
As the happy owner of a 16A I hope the following advice will clear things up for you.
The correct adjustment for bandsawbearing guides is as follows.
1. With the bearings clear of the blade, correctly tension the blade.
2. Bring one bearing in to just touch the blade with the leading edge of the bearing just behind the set on the blade.
3. Bring the other bearing in to touch the blade using a piece of normal A4 paper as a spacer between the bearing and the blade. Lock bearing in place.
4. Readjust the first bearing using the paper method.
So now you have the side guides adjusted correctly, and if the blade wanders off line it will touch the leading edge of the bearing and hey presto, spin spin spin.
Try it and all will be revealed.
Regards
Termite
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