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Gallery, Projects and General => Gallery => Topic started by: Edgwick one on July 19, 2015, 05:15:22 AM

Title: Oil for Edgwick Lathe
Post by: Edgwick one on July 19, 2015, 05:15:22 AM

 I found what oil they recommended is Circol which you obtained from Edgwick
gravity @60F is .900
redwood viscosity @70F is 750 secs
Closed flashpoint 380 F
Free fatty acids  nil
Vegetable oil or Animal oil  nil
Ash     .002%
Headstock capacity 5 pints

Title: Re: Oil for Edgwick Lathe
Post by: DavidA on July 19, 2015, 06:09:25 AM

Why start a new thread just for this ?

Dave. :scratch:

Title: Re: Oil for Edgwick Lathe
Post by: mattinker on July 19, 2015, 10:48:24 AM

Quote from: DavidA on July 19, 2015, 06:09:25 AM

Why start a new thread just for this ?

Dave. :scratch:

Dave,

I think David is new to forums, he replied to a few questions in PM's to me when they were form responses, he's getting there!

Regards, Matthew.

Title: Re: Oil for Edgwick Lathe
Post by: DavidA on July 19, 2015, 02:23:44 PM

Matthew,

That probably explains it.

David,

If you can keep all the related stuff together it helps us follow the narrative.

Dave.

Title: Re: Oil for Edgwick Lathe
Post by: Edgwick one on July 21, 2015, 06:38:10 AM

I have a mate who works for Penrite when I spoke to him he had some old machinery listings with regards what oil to use he had a listing for Edgwick 6.5 lathe he cross referenced and came up with PRO HYD 68005 that is the part number from Penrite the headstock hold 5 pints of oil cheers David

Title: Re: Oil for Edgwick Lathe
Post by: PekkaNF on July 21, 2015, 11:16:06 AM

OK, so i is traditional hydraulic ISO VG 68 hydraulic oil.
http://www.penriteoil.com.au/products.php?id_categ=13&id_subcateg=78&id_products=116

Just out of curiocity:
* Does lathe has a pump for oil circulation? Probably does, because hydraulic oils are made to be pumped around and don't foam easily.
* Does lateh has a wet coulping or brake? Probably not. I am curious of material choice if it has a wet coupling.

Pekka

Title: Re: Oil for Edgwick Lathe
Post by: Edgwick one on July 21, 2015, 04:49:49 PM

Yes has a brake and a clutch but no pump splash lube

Title: Re: Oil for Edgwick Lathe
Post by: Howder1951 on January 18, 2016, 10:45:18 AM

Copied from the original thread regarding the headstock lubrication :
Hope this adds a degree of clarity.

Hello everyone, oils are one of my favourite topics. when i was dealing with the rep for our steel mill I asked about lathes and he said that is easy, hydraulic oil 68 cst viscosity. Explanation: hydraulic oil  has a mild antiwar additive and lathes are typically lightly loaded. The more additive in an oil the quicker it will degrade from the additives = impurities. Also like someone had mentioned, some EP (extreme pressure) gear additives are not completely compatible. Generally, this information will conform with the original manufacturers recommendations .  Motor oil is an accepted alternative to hydraulic oil where availability is an issue. A higher viscosity will give a thicker oil film and more protection, but the cost is heat generation and resistance, a lathe gearbox is typically over engineered for accuracy reasons, hence the light loading.
Happy machining my friends.