From: Received: from resqmta-ch2-10v.sys.comcast.net ([69.252.207.42] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 9986265 for flyrotary@lancaironline.net; Sat, 05 Aug 2017 22:25:24 -0400 Received-SPF: pass receiver=logan.com; client-ip=69.252.207.42; envelope-from=hoursaway1@comcast.net Received: from resomta-ch2-14v.sys.comcast.net ([69.252.207.110]) by resqmta-ch2-10v.sys.comcast.net with ESMTP id eBFTdpceEkigTeBFbdHSux; Sun, 06 Aug 2017 02:25:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1501986307; bh=tTFrTzdtdKKrKd2BORiUenGWF146sAahP5KlZbIYesY=; h=Received:Received:Date:From:To:Message-ID:Subject:MIME-Version: Content-Type; b=QvnYFKuaE8Tspybl1dXEBfEi0NEfyo2ST+GVqKQddCrAZCB4G0rQynF22zawOct6O 9BKnvEBQw2Tluol9J3eTQX0reRu8ssNYjw/ekDcNhaljrXryzwRfe/sy/gJ30AV7vL kT2/e8z5I2CPWM5TcEHCAIHQMC7dhTtsFTieyGz92isjoyK3Ss7X6R2ceg6hcQsd31 AmQJWhq2H/HHEgaD/s6hpzBP1SMBzoSadsRTcKKACIftfLFYsfS+zFUXhjwJyBwXa1 jnejF3Gl6WJf392ku6Yo4iol36+O3yEyLXbYfMK3EC7L5FwgZBhwcbvt/ae8WWCUk9 KmmC5AaOEJiHA== Received: from resmail-ch2-632v.sys.comcast.net ([162.150.50.156]) by resomta-ch2-14v.sys.comcast.net with SMTP id eBFbdAZUr4XEaeBFbdnmPJ; Sun, 06 Aug 2017 02:25:07 +0000 Date: Sun, 6 Aug 2017 02:25:06 +0000 (UTC) To: Rotary motors in aircraft Message-ID: <756858668.56909705.1501986306908.JavaMail.zimbra@comcast.net> In-Reply-To: References: Subject: Re: [FlyRotary] Re: bearing in mazda g/box MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_56909704_1602065022.1501986306906" X-Originating-IP: [::ffff:68.49.229.174] X-Mailer: Zimbra 8.0.7_GA_6031 (zclient/8.0.0_BETA1_1111) Thread-Topic: bearing in mazda g/box Thread-Index: +JNAVmPoC5GdJDdB841pjbNyoJwC8w== X-CMAE-Envelope: MS4wfLH3fqjbIS0Gl2dWXSk4nq2rfutpnOIBACev0WaH0WEgMOlxI9KyaenU14vKbhCp9DvfXfOZK7ZhAaYCuQJwLPvbaHQFiEgdppJe4GCU3IuM7n7dxrCY g5DIm7lvyEUrt3Bt4rban10sEsHreywNCdO90+nZc/R0IhkUJQs6dzQ02SGpfb4qrTA1QgHmqHyp8nhZJMQxpZqXGDrJePisTgc= ------=_Part_56909704_1602065022.1501986306906 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit That would be called a Torrington bearing, widely used in automatic transmissions, very tough but loves to be lubed, & yes the races are not held they are free floating. All the Japan made trans use many T-bearings, the have an unusual design for there auto trans based on manual trans concept of many large helical gears & added clutch packs to transfer torque where wanted also reverse uses a manual trans type syncro gear. Not bad stuff but difficult to work on. David R. Cook RV6A Rotary tomorrow will test Auto tune with new eng. monitor, install complete. ----- Original Message -----From: Neil Unger To: Rotary motors in aircraft Sent: Sat, 05 Aug 2017 22:30:42 -0000 (UTC)Subject: [FlyRotary] Re: bearing in mazda g/box 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 ------=_Part_56909704_1602065022.1501986306906 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
That would be called a Torrington bearing, widely used in automatic transmissions, very tough but loves to be lubed, & yes the races are not held they are free floating. All the Japan made trans use many T-bearings, the have an unusual design for there auto trans based on manual trans concept of many large helical gears & added clutch packs to transfer torque where wanted also reverse uses a manual trans type syncro gear. Not bad stuff but difficult to work on.  David R. Cook RV6A Rotary tomorrow will test Auto tune with new eng. monitor, install complete. 
----- Original Message -----
From: Neil Unger <flyrotary@lancaironline.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sat, 05 Aug 2017 22:30:42 -0000 (UTC)
Subject: [FlyRotary] Re: bearing in mazda g/box

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
------=_Part_56909704_1602065022.1501986306906--