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Replacement blade guide bearings
Bob Loesch
I might be wrong in this, but I believe that the bearings themselves are ordinary ball bearings with their number marked on them. Any bearing shop should be able to provide quality replacements.
Also, I seem to recall someone telling us that standard in-line skate wheel bearings make good inexpensive replacements, or am I 'remembering' incorrectly? (I suffer from CRS... "Can't Remember S...") ";-) At 10:22 AM 2/11/2004, Carey Culpepper wrote: Anyone know of a good source of replacement blade guide bearings? The onesRegards, Bob |
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Bob: The guide bearings on my machine are needle bearing.They are like cam
follower bearings but with an eccentric shaft used for tension adjustments. While I was out in the shop to check the bearings(i did take one apart) I wrote down the specifics on the ID plate. It has a Duracraft decal and model# HBS 348 made in 1984 serial # 006119. Made in Taiwan on the ID plate. It is what Home Depot sold 20 years ago. |
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Elton Clark
开云体育Bob wrote:
?
>>>I seem to recall someone telling us that standard in-line
skate wheel
bearings make good inexpensive replacements, or am I 'remembering' incorrectly?<<< ?
This is correct . . K-Mart had the identical
bearing for cheap.
?
Bearing adjustment:? When using good .025
" thick blades, what is consensus best setting for the guide bearing
spacing?? I was tempted to set them closer than .025 but I was afraid that
repeated runing under pressure might distort the blade.
?
Tony
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Bob Loesch
OK, Thanks Carey. I stand corrected!
However, if you've got the number off of the bearing, you should still be able to get them at any decent bearing shop, even if they have to order them. That's the neat thing about bearings (needle, roller, or ball): they're the only thing I've ever seen with what approaches world-wide standardization! At 11:05 AM 2/11/2004, Carey Culpepper wrote: Bob: The guide bearings on my machine are needle bearing.They are like camRegards, Bob |
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Bob: On second inspection ,the eccentric part is just a thin sleeve with the
spindle of the bearing pressed in. It may in fact be a standard size cam follower bearing. Tony, these are not ball bearings they are needle bearings riding on the threaded spindle. Not replaceable accept as a unit. Spindle and all. So basically what you guys are saying is that the cam follower type bearing is no longer used on the import saws. |
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Ed M Ginsberg
开云体育I got my bearing from a bearing supply house, get the numbers off the
bearing or a last resort mike the bearing and get the size for
replacement,? I have one place that has served me well? and ? McMasterCarr is
another great source Ed ke6bnl
?
On Wed, 11 Feb 2004 13:22:59 -0500 "Carey Culpepper" <culpeppe@...>
writes:
+++++++++++++++++++++++++++++++++++++++++++++++++ ?? Ed???? ke6bnl@...??????????? 1949,50 F1 Ford PU--63 Ford Econoline PU??????????????????????????????????????????????????????????????????? ????? Agua Dulce Ca.??? 91390???????? 1948 F3 Ford Pu----1953 Chvy 3100 AD PU????????? ?? 70 mil N.Eof Los Angeles??????????? 1949 F1 V8 Flathead pu +++++++++++++++++++++++++++++++++++++++++++++++++ |
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Ed M Ginsberg
开云体育I did not send the attachment that I see on my message and I deleted them
sorry not sure what they are Ed ke6bnl
?
On Wed, 11 Feb 2004 12:38:27 -0800 Ed M Ginsberg <ke6bnl@...> writes:
+++++++++++++++++++++++++++++++++++++++++++++++++ ?? Ed???? ke6bnl@...??????????? 1949,50 F1 Ford PU--63 Ford Econoline PU??????????????????????????????????????????????????????????????????? ????? Agua Dulce Ca.??? 91390???????? 1948 F3 Ford Pu----1953 Chvy 3100 AD PU????????? ?? 70 mil N.Eof Los Angeles??????????? 1949 F1 V8 Flathead pu +++++++++++++++++++++++++++++++++++++++++++++++++ |
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Elton Clark
开云体育My 4x6 saw is a?? "BuffalO" brand with a
date tag of 1983.? It is pretty much the same as all the other 4 x 6 saws
I've seen, cast guide brackets, etc.???? The 6 bearings in
the guides are "NMB #608Z"? and they are identical to the razor scooter
wheel bearings.? Any advice of guide roller spacing?
?
Tony?? |
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I just got a bandsaw at a tool sale Model HBS-348, Serial #000756, MFG Date 1983, but no brand identification I can see. The Instruction Manual came with it, but that document has no mention of any company name or address. it's written in rather broken English. This seems to be a fairly early model of what Carey Culpepper wrote about.
Regards, Terry Lund |
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The following metric size deep groove ball bearings have been used:
?These bearings are used at v.low speed and low load, so the ABEC rating[2] is not applicable, however the Radial Internal Clearance[3] grading should be considered. [1] Not all mnfr’s follow the international codes for similar size bearings e.g. SKF, who work off IDxODxW.[2] ABEC scale is a bearing industry standard for manufacturing tolerances on every measurable dimension except internal clearance. Higher ABEC ratings allow those bearings higher operational speeds, in excess of 30,000rpm, but no more load and even less shock resistance. ABEC 1 are cheap and wear out quickly, these are what you will get if you do not ask for better. ABEC 3 or 5 are usually better manufactured and still reasonably inexpensive.? You’ll pay 5-10x as much for ABEC 7 or 9 for absolutely no measurable difference in performance over ABEC 3 in a 4x6. You can even buy an ABEC 9 bearing with C5 radial internal clearance (for high speed roller skates) that is worse for side guide rollers than a much cheaper ABEC 3 with even C3 radial internal clearance. [3] Radial internal clearance is essentially the amount of up&down movement the bearing will allow.? Less is better for 4x6? guide rollers. |
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Sorry Terry, I didn't think that you may have been asking for a brand name.
I have a similar problem with my 1987 Taiwanese bandsaw.? It has a manual that just give the model number 'UC115'? and nothing else. I learned that it was probably made by one of the major manufacturers as a house brand for another exporter from Taiwan.? Yours may be similar. Can you scan your manual and post it in the Files section of this site and I'll compare it to my manual's Jinglish.? It may prove to be of a similar make. - jv |
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On Tue, Sep 15, 2020 at 10:39 PM John Vreede <vreededesign@...> wrote: Sorry Terry, I didn't think that you may have been asking for a brand name. TSL>Thanks, John, I was mainly intending to post a "new member, first post" but goofed and did not modify the Subject. Thanks for the information on bearings as I might well need that when I get to work cleaning up and checking out the new acquisition.?
TSL>I've uploaded a scanned copy to the Files section, HorizVert-Band-Saw-Circa-1983.pdf
Terry terry.lund@... |
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Hi Terry ?I can tell from the pictures/drawings it's not a Rong Fu or an RF clone (the major manufacturer at the time), the base casting and fixed vice jaw styles are way different. The manual is also very different from Rong?Fu and pretty good layout for 1983 despite the terrible English.? 3/4HP from an era when they didn't lie about motor HP means its more powerful than most by todays standard. (1HP HF motor will be somewhere between 1/3 and 1/2 HP - they quote input power not output!) It could be a good one if it's made well.? The use of quality tools in the adjustment section hopefully points in that direction - jv? On Thu, Sep 17, 2020 at 7:32 AM Terry Lund <terry.lund@...> wrote:
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On Wed, Sep 16, 2020 at 5:11 PM John Vreede <vreededesign@...> wrote:
John, many thanks for the information, and thanks for the previous post with the table of replacement blade guide bearings. I've just been able to begin looking into this machine, which sat unused for some number of years. The blade guide bearings were initially rather stiff and had some rust/gunk so I started to disassemble with the idea of replacing the bearings. The rear guide bearings measure as one on your chart, Bearing code 608Z. That's the good news. The side guides are needle bearings, which I didn't realize as I was pressing them off the adjustment bolts. One bearing is fixed and the other one is on an eccentric bolt to adjust the width. Is that the same on other models? Unfortunately as I pushed one apart, it separated and I managed to lose one of the needles so I am searching for replacement needle bearings now. As a reminder, this is Model HBS-0348, without any company identification, Serial #000756 Mfg Date 1983. Is anyone aware of other similar saws with needle bearings for the side guide-rollers? The OD is only 22mm, and that is an outer sleeve on the needle bearings which are about? 17mm, and width of 12mm, so smaller dia and wider width than what's listed in the table provided by John Vreede. I will look for a suitable ball bearing replacement as I assume that would be a reasonable substitute. Regards, Terry Lund
Terry terry.lund@... |