Subject: Mail for QTC Support
From: Rotary Engine
Date: 3/22/2006, 11:24 AM
To: AAme

Ceramic bearings would be a good idea and no problem for us.

However we have gone down another road. We are looking at
smaller diameter and wider herring bone gears.

Thanks for your help.

Paul Lamar

To: Paul

All of your specifications appear to be inline with the requirements to run
these gears at the speeds that you require. I am not a bearing expert and
cannot advise as specific bearing for your application, but I do believe
that at the speeds you will be running the bearings will have to have
ceramic balls.

Regards,
Brian Dengel
Product Manager


Thanks for responding Brian.
We will be using Ford CVT fluid used in the Ford 500 CVT auto transmission.
Our machine tolerances are +/- .0002.
The gear box will be aluminum fluid cooled to a max of 200 F.

Max RPM will be about 12,000. What bearings do you recommend?

Paul


To: Paul

In regard to your inquiry, we wish to advise as follows:

Our stock ground spur gear MSGB1-50 lists for $118.23 each. We currently
have 6 pieces in stock.

This gear is designed for use up to 1800 rpm. However, under precise
operating constraints, we have had customer use these gears in applications
up to 18,000 rpm.

In order to achieve these speeds, the proper lubricant must be used, the
shaft alignments must be exact and the correct bearings must be used.

Regards,
Brian Dengel
Product Manager

What RPM would MSGB150 gear be limited to?

Cost for 4

thanks

Paul Lamar




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