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Old 02-02-2018, 05:40 AM   #63
wogin
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Join Date: May 2016
Location: newport news
Posts: 5
Garage
Quote:
Originally Posted by Gelbster View Post
Thanks for sharing your thoughtful analysis.
Having chosen the roller bearing option, why EPS and not RND ?
Roller Bearing IMS Retrofit Kit – RND Engines
Actually did compare those two bearings. Although the thrust loads on the roller bearing should be very low. The EPS bearing seemed to me to have a better way of controlling those thrust loads. On the EPS bearing the thrust loads are transferred between the outside of the External race and the retaining washer faces on either side of the bearing. This ensures the ends of the rollers will not be the primary wearing surface. In the RND bearing appears to be an off the shelf rollerbearing that is simply axial retained by rigidly connecting its internal race to the cover/flange. Thrust loads would be between the roller ends and the internal edges of the bearing race... effectively loading the off the shelf bearing in a way that it is not designed to be. .... while this may be technically acceptable if the thrust loads are low enough, I just didn’t want to risk it. EPS seemed like a better thought out design.
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