Return-Path: Received: from rtp-iport-2.cisco.com ([64.102.122.149] verified) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 722661 for flyrotary@lancaironline.net; Wed, 09 Feb 2005 16:41:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.102.122.149; envelope-from=echristl@cisco.com Received: from rtp-core-1.cisco.com (64.102.124.12) by rtp-iport-2.cisco.com with ESMTP; 09 Feb 2005 16:40:54 -0500 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== Received: from [172.18.179.151] (echristl-linux.cisco.com [172.18.179.151]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id j19Lep1j014539 for ; Wed, 9 Feb 2005 16:40:52 -0500 (EST) Message-ID: <420A8363.6000401@cisco.com> Date: Wed, 09 Feb 2005 16:40:51 -0500 From: Ernest Christley User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040929 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: getting oil down prop shaft References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Tracy Crook wrote: > No magic is involved. Same way as oil gets into the Mazda (or most > any engine) crankshaft. The rear prop shaft bearing is a large > pressure fed bearing with groove in middle that matches up with a hole > in the shaft. > > Tracy I see. So there is a tight clearance between the shaft and bearing, such that the oil has a hard time squirting out the sides. The rear bearing for my prop shaft is inside the sun gear, and the shaft is tapered so there is no way to add an additional beaing. Hmmm... Back to ye' ol' drawing board.