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DSM-59 clone vibration
Ok, so I removed the bearings and I may have stumbled over some differences between the Hardinge DSM-59 and the Feeler FTS-27 .. it appears to my untrained eye, that the ********* B7011 BB bearings I removed are sealed bearings? While removing the spindle towards the tailstock, the bearings did not...- Swissmat
- Post #16
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
Thanks Peter, I'll take that twin tool approach and see what happens ..- Swissmat
- Post #15
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
I contacted Alpine Bearings and spoke with Derek .. he knew exactly which bearings were required .. I have a set on the way, pre-greased .. a lot of people comment on the very high price for these, but I was pleasantly surprised at 210$ for the pair .. the Chinese manufacturer wanted 180$ for...- Swissmat
- Post #13
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
Fred, you've mentioned the fingers being wrong before IIRC .. can you elaborate on this? The collet bearing was definitely shot by the wobble of the collet closer tube .. whether that had been misaligned for eons with the previous owner or not I can't tell .. I bought it in a pretty sorry state...- Swissmat
- Post #11
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
Ok, I did some more measuring .. and, I think the bearings are shot after all .. well, at least the rear one .. but first things first. Here's the machine: I measured the axial runout at the front of the spindle as suggested, by pushing hard but not with a 5ft cheater and still couldn't get...- Swissmat
- Post #9
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
hey Jim and Fred, precisely, I swept the collet seat thinking it would indicate radial runout .. I'll re-do that measurement as you suggested Fred and report back .. I will tackle the tool grind first and see what happens and will have to devise a way to measure the collet draw tube for runout...- Swissmat
- Post #7
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
hey Jim, thank you so much .. I'll have to re-investigage the tool .. I was sure I had it right (tested it on the Colchester and worked great) .. but I appreciate the potential solution!- Swissmat
- Post #3
- Forum: Bridgeport / Hardinge and USA Light Iron
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DSM-59 clone vibration
I've been trouble shooting a bad surface finish on a Feeler FTS-27 (DSM-59 clone) for a while. I am currently turning 1/2 brass with about 1.5in of stick out from a 5C collet and I get chatter marks and a consequently undesirable surface finish. I am not able to figure out where the looseness...- Swissmat
- Thread
- Replies: 15
- Forum: Bridgeport / Hardinge and USA Light Iron
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New to me... Colchester master mk 1 1/2
Ok ya that makes sense .. I never considered the forces on the QCGB .. my thoughts always go to the spindle and the main gearbox ;) Thanks for the tip! very light cuts it is! -
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New to me... Colchester master mk 1 1/2
hey John, interesting bits of advise, thanks! I've been wondering about the knock-off clutch and whether this is a feature that can be used deliberately for turning or whether its intent is purely as a prevention to a catastrophic impact .. I haven't been able to get a straight answer on this... -
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Jacobs Rubber-Flex Collet Chuck Model 91 Dis-assembly
I Hey I know I'm late to this game, but does anybody have the disassembly instructions in the form of a pdf? I can't seem to get the photobucket picture .. thanks -
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New to me... Colchester master mk 1 1/2
Hi, I realize I'm 8 years late to this game, but whatever happened to this thread? Did you guys go elsewhere to continue the conversation? I just happened to have picked up a Colchester Student and am curious to hear what else you learned and discovered ;)