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Fixing a Leaky RF-45 Mill Head - Enco

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Fixing a Leaky RF-45 Mill Head - Enco
EdK Offline
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#121
04-29-2012, 11:11 AM
The subject of proper orientation came up and is good one. Based on what Mayhem said I think this is the way they should be oriented. (See image below.) Please correct me if I'm wrong.
That bottom section of that gear assembly is what the seals are running on. You can see the wear marks from the old seals. The only point where oil has access to get by the seals is the joint between the upper seal and the gear assembly collar, for lack of a better word, that the upper seal rides against. Why would two seals be required?

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Ed

   
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EdK Offline
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#122
04-29-2012, 11:42 AM
Based on this picture from a seal manufacturer's web site, the orientation in my image is correct.

Ed


.jpg   rotary_1.jpg (Size: 6.62 KB / Downloads: 135)
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DaveH Offline
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#123
04-29-2012, 12:21 PM
Ed,
In terms of the dual seal I think just a back up in case one fails.

I have seen two seals used where the seals are packed with grease prior to installation the second seal helps to retain the grease for lubrication.

If the seals run without lubrication they die SlapheadSlapheadSlaphead

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ETC57 Offline
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#124
04-29-2012, 12:50 PM (This post was last modified: 04-29-2012, 01:03 PM by ETC57.)
(04-29-2012, 10:35 AM)f350ca Wrote: He didn't ask how we (self included) put in seals, he asked how to do it properly.
Greg

But Greg, I always thought installed with no damage was a proper install.Chin

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Jerry.Popcorn

and yes Mayhem my set goes up to 3 1/2", so I do have some rather large sockets. Big GrinBig GrinBig GrinBig Grin.
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ETC57 Offline
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#125
04-29-2012, 12:59 PM
(04-29-2012, 12:21 PM)DaveH Wrote: Ed,
In terms of the dual seal I think just a back up in case one fails.

I have seen two seals used where the seals are packed with grease prior to installation the second seal helps to retain the grease for lubrication.

If the seals run without lubrication they die SlapheadSlapheadSlaphead

Smiley-eatdrink004
DaveH


That was my thought Dave,

It is meant to act as sort of a packing filled with grease. Bear in mind Ed this is just a guess, I know nothing about your mill.Chin

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DaveH Offline
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#126
04-29-2012, 02:34 PM
Smiley-signs009

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doubleboost Offline
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#127
04-29-2012, 04:15 PM
I have a good selection of old bearing races at work for fitting seals
I must admit i also have a good selection of socketts
John
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EdK Offline
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#128
04-29-2012, 04:23 PM
The OD of the seal is 45mm so I'm going to need to make a custom tool to seat the seals.

Ed
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doubleboost Offline
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#129
04-29-2012, 04:33 PM
Hi
Ed
As long as it will clear the bore the seal fits in and has a nice smoth end a simple piece of tube will do
A machined tube with a depth stop would be even better
John
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EdK Offline
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#130
04-29-2012, 05:24 PM
John,

A piece of tube would have been my preference but I don't have any tube near that size so I made this to press the seal in.

Ed

   
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