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16th August 2015, 08:25 PM #1.
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Hercus No.1 Table Bearing Lubrication - Oil or Grease?
In the scant "Operators Instruction Book" for the tool and cutter grinder there is no mention of lubrication of the ball bearings supporting the table. There is mention of the 10 oil nipples and the advice that on no account should grease be applied to any part of the machine!
The balls and their vee and flat races do not show signs of excess grease lubrication, the could have indeed been oiled so I'm wondering what manner of lubrication would be best. Peter Fou gave me a tin of lithium grease when he sold me the grinder. Maybe a thin smear?
Any suggestions?
Bob.
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16th August 2015 08:25 PM # ADSGoogle Adsense Advertisement
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16th August 2015, 08:59 PM #2Pink 10EE owner
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The Cincinnati #2 TC grinder manual states the ball ways on it should occasionally be cleaned up to remove dust, and then upon reassembly the balls dusted with graphite powder. It further states on no account should they be oiled or greased as this will pick up grit.
In saying that I believe Ueee's Blohm surface grinder has ball ways that are greased, but they may be much better protected..
I would probably go with what Cincinatti recommend and use a dry lubricant... Graphite or maybe even in todays world a can of that molybdenum lubricant you spray on and it dries..Light red, the colour of choice for the discerning man.
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16th August 2015, 11:09 PM #3Intermediate Member
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- ex Perth, now Mittagong
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Bob,
That tin of grease was one of 5 I acquired many years ago and I still have 1/2 a tin left for myself which will last me out, I only use it for my Weiler spindle bearings, the rest I gave away before moving.
The Hercus balls are well protected and what is on the balls now, Vactra2, has been there for many years. The major source of grit contamination is from wheel dressing. I always had my vacuum cleaner rigged up when dressing. Perhaps a dry lubricant as suggested may be better?
PeterLast edited by Peter Fou; 16th August 2015 at 11:12 PM. Reason: Spelling
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16th August 2015, 11:13 PM #4Senior Member
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Bob
When I assembled mine I unthinkingly put a squirt of oil into the slde, it ran straight into the bottom of the V and out the end, which is wide open...
Mine is presently clean and dry. I think that the graphite is probably a good suggestion. Otherwise I was thinking of a little silicone spray.
Regards
Ian
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17th August 2015, 06:31 PM #5Philomath in training
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- Oct 2011
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- Adelaide
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I sent an email to my Hercus contact (who is on holidays at the moment). His comment was
I would be using a oil like tecoma 32 (hydraulic oil) or tecoma 68 general lube oil used on most machinery, never grease as this will atract grinding dust / grit in to slide ways.
So oil sounds alright, it is the grease to avoid.
Michael
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17th August 2015, 07:44 PM #6
RC is correct, the Blohm is greased, but they are very well protected.
1915 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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17th August 2015, 08:35 PM #7SENIOR MEMBER
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Hi Bob,
The Macson which is pretty much a copy of the Cincinnati has the same instructions as Richard gave.
A bit of graphite only.
Phil
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