From: "Neil Unger" Received: from mail-pg0-f51.google.com ([74.125.83.51] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 9986148 for flyrotary@lancaironline.net; Sat, 05 Aug 2017 18:32:24 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.83.51; envelope-from=12348ung@gmail.com Received: by mail-pg0-f51.google.com with SMTP id u5so20529168pgn.0 for ; Sat, 05 Aug 2017 15:32:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=2MYDjDwKVjATVJJ18QLeDiYryNPJOIH4GkPcFUHQ3DY=; b=OOgL4u8d8Nv2y7P3UOadRDNvlbcdDsblq0S/P5zxarbhu8QTIbcfmPixQURpO1zt7M cZTD/7+9mHAw00lfAtcJLzE8+B30R7FctIbuVEiNXMawtAPOTEQEwVGkpdzjmoD6nvqC F+JoU3V7vpLiRhYOVSZq//pqpgEMyyPCyl+aRYnmmWZX7BQ8u4CAjMelRcRJRfNbuvn7 VXU6g+qEPsQk15qIJQfKwEFZwXAOO+G7fAUAUUfljQA3216u7F1GcABXll3NsQEIkR2D CSFO19dKJPx3bLEy3F8/cEPlvAnWYemlWpbcUuigKIEJqBfpZ6AMy/kcC9Hp3pD4HPjN N6Fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=2MYDjDwKVjATVJJ18QLeDiYryNPJOIH4GkPcFUHQ3DY=; b=eBodefOLI40Ky3g+4oIS10vZRFUt97dg+3oMhgZ6ieVRUBMP/tcTV8u6PVRsTYceju xHQJDHAUAhNpz4P5bxYX/9hzgDidy+ERjBdI3r5Ie7hhYh76989IOY4tAikGhmRiwaPV fyeLZlfQwj77iXsbbutFVINJQ67fdk7GTKFVLJYBOxQlmlDqRHh78MwYbYmu6ZWc6Nf1 52OChZZwArWs402dLndK1NhYhkWJ4pd1ryNAmzP3Jr9WMJfWwY1ThEIxysXdFVPTyObv wN0BKj6nu6fW/rzVSHZIPIUy4xStGLxo3XPVhStods6zXmOBfM1cH0pkeStUdTnvR7Rj MqlA== X-Gm-Message-State: AIVw111Cpf6jxoXNI5sTrjlZLaW8Fk1jGx2DRjw7A0RrnOR2pZ0JvX98 IeXSFOxEFSJBn/4CJCk= X-Received: by 10.84.130.11 with SMTP id 11mr8338874plc.417.1501972327235; Sat, 05 Aug 2017 15:32:07 -0700 (PDT) Return-Path: <12348ung@gmail.com> Received: from [192.168.0.103] ([103.198.24.78]) by smtp.gmail.com with ESMTPSA id r9sm8299941pgf.83.2017.08.05.15.32.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 05 Aug 2017 15:32:05 -0700 (PDT) Subject: Re: [FlyRotary] Re: bearing in mazda g/box To: Rotary motors in aircraft References: Message-ID: Date: Sun, 6 Aug 2017 08:30:42 +1000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------89E2A84A005D4B563111974B" Content-Language: en-US This is a multi-part message in MIME format. --------------89E2A84A005D4B563111974B Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Charlie and Bill, yes tracy used two needle thrust bearings as I have, but in practice there is nothing to hold the thrust washers either side of the two bearings. I just worry about that, but tracy's Box has done thousands of collective hours, so I possibly should throw my worry beads away. Thanks Neil. On 8/6/2017 4:10 AM, Charlie England wrote: > Neil, > > If you're looking for the Mazda transmission input shaft bearing, > here's a page from the parts manual. If you need the entire manual, > email me at ceengland7@gmail.com & I'll send you the pdf. > > Charlie > > On 8/5/2017 11:29 AM, Charlie England wrote: >> I think those are the thrust bearings, to handle the thrust of the >> helical gears in the planetary gearset. Is that what Neil's asking >> about? >> >> On 8/5/2017 9:51 AM, Bill Schertz wrote: >>> I believe that Tracy's gearbox uses a stack of needle bearings to >>> lower the rpm of each bearing to a better value >>> Bill Schertz >>> >>> -----Original Message----- From: Neil Unger >>> Sent: Friday, August 04, 2017 11:54 PM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] bearing in mazda g/box >>> >>> Gents, I have suddenly realised that the main bearing on the Mazda >>> g/box input shaft would have to take 8/9000 RPM. In my search most >>> bearings give out at 6,000 RPM. Does anyone know just what bearing >>> they >>> use? Perhaps the number?? I realise i am the optimist. Thanks Neil. >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --------------89E2A84A005D4B563111974B Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Charlie and Bill,  yes tracy used two needle thrust bearings as I have, but in practice there is nothing to hold the thrust washers either side of  the two bearings.  I just worry about that, but tracy's Box has done thousands of collective hours, so I possibly should throw my worry beads away.  Thanks Neil.


On 8/6/2017 4:10 AM, Charlie England wrote:
Neil,

If you're looking for the Mazda transmission input shaft bearing, here's a page from the parts manual. If you need the entire manual, email me at ceengland7@gmail.com & I'll send you the pdf.

Charlie

On 8/5/2017 11:29 AM, Charlie England wrote:
I think those are the thrust bearings, to handle the thrust of the helical gears in the planetary gearset. Is that what Neil's asking about?

On 8/5/2017 9:51 AM, Bill Schertz wrote:
I believe that Tracy's gearbox uses a stack of needle bearings to lower the rpm of each bearing to a better value
Bill Schertz

-----Original Message----- From: Neil Unger
Sent: Friday, August 04, 2017 11:54 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] bearing in mazda g/box

Gents,  I have suddenly realised that the main bearing on the Mazda
g/box input shaft would have to take 8/9000 RPM.  In my search most
bearings give out at 6,000 RPM.  Does anyone know just what bearing they
use?  Perhaps the number??   I realise i am the optimist. Thanks Neil.


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