<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hank,</div><div id="AppleMailSignature">not sure what you are meaning.</div><div id="AppleMailSignature">The piece ( front section of thruster) is held in the jaws.</div><div id="AppleMailSignature">I can hand hold the bearing in place & wind in the tail stock until the tool</div><div id="AppleMailSignature">in the tailstock engages the bearing. I then let go & continue winding the</div><div id="AppleMailSignature">tail stock. If I can't press the bearing in with the tail stock I back it off</div><div id="AppleMailSignature">& machine a bit more out of the bore & repeat the process.</div><div id="AppleMailSignature">Alan</div><div id="AppleMailSignature"><br><br>Sent from my iPad</div><div><br>On 30/03/2018, at 12:28 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div>Alan,</div><div>The problem with your plan is, you will move your piece that your machining when you try to push the bearing in. </div><div>Hank</div><div><br></div>
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On Thursday, March 29, 2018, 4:09:52 AM MDT, emile via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div><div dir="ltr">Hi Alan,<br clear="none"><br clear="none">Press fit is good for a durable bearing construction. <br clear="none">Force is not leading, you're to late when the force is too high... You can<br clear="none">find in a bearing handbook how much the diameter difference should be.<br clear="none">Is about 0,02 to 0,03 mm for small /medium bearings.<br clear="none">Loctite 638 or 603 is a alternative.<br clear="none"><br clear="none">Br, Emile<br clear="none"><br clear="none">-----Oorspronkelijk bericht-----<br clear="none">Van: Personal_Submersibles [mailto:<a shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br clear="none">Namens Alan via Personal_Submersibles<br clear="none">Verzonden: donderdag 29 maart 2018 11:33<br clear="none">Aan: <a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br clear="none">Onderwerp: [PSUBS-MAILIST] Press Fit<br clear="none"><br clear="none">Hi,<br clear="none">I'm wanting to press fit a bearing in to my aluminium thruster housing &<br clear="none">wondering if I could make a tool slightly less in diameter than my bearing,<br clear="none">fit it in the lathes tail stock, & wind it in to force the bearing in to the<br clear="none">press fit.<br clear="none"> I have heard figures like 500lb force being used for press fitting, which<br clear="none">I won't get winding the tail stock, & probably don't require as there is not<br clear="none">a lot of dynamic force on the bearing. <br clear="none"> I imagine there will be a lot of trial & error involved getting the bore<br clear="none">to the right diameter, & this method will allow me to keep the work in the<br clear="none">chuck & keep doing fine passes until I get it to the right diameter.<br clear="none">Any thoughts or experience with this thanks.<br clear="none">Alan<br clear="none"><br clear="none">Sent from my iPad<br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><div class="yqt0383975537" id="yqtfd94157"><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div></div></div>
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