That's what my bearings looked like until I made the small mod on my layshaft spacer. Lubrication of those small bearings is KEY for getting a decent service life from the bearing.
| XRAY - Model racing cars https://setup.teamxray.com/xsetup/legacy/ |
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| Layshaft bearing https://setup.teamxray.com/xsetup/legacy/viewtopic.php?f=8&t=537 |
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| Author: | cbcbcb [ Tue Nov 30, 2004 01:17:57 ] |
| Post subject: | Layshaft bearing |
What might cause a layshaft bearing to fail? A few months ago I had one seize up (the one nearer the spur gear). This evening I found that the same bearing had completely disintegrated. This certainly explained a couple of bad recent results! Could this be coincidence, or is it likely that something else is damaged and causing this bearing to fail? (Side note: I was very pleased with being able to change the bearing in under 15 minutes - credit to the Xray design team!)[/i] |
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| Author: | oeoeo24 [ Tue Nov 30, 2004 02:26:45 ] |
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I've had the same thing happen, until I realized that there wasn't enough endplay in the assembled shaft/bearing assembly. Since I'm using a solid aluminum layshaft, the spacer used in between the pulleys and the bearings supporting the layshaft was also made of aluminum. To resolve the problem, I removed about .5mm from the layshaft spacer to allow for a tiny bit of endplay @ either end of the shaft. this way the bearings aren't under a side load, which tends to shorten the life of the bearings. |
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| Author: | l150040 [ Tue Nov 30, 2004 13:17:52 ] |
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| Author: | ianp [ Tue Nov 30, 2004 15:43:53 ] |
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| Author: | Adi Wright [ Tue Nov 30, 2004 23:12:11 ] |
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The same bearing failed on my Factory Xray last weekend. Here's the aftermath... I'll be lubing the bearing from now on.... |
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| Author: | oeoeo24 [ Wed Dec 01, 2004 00:27:09 ] |
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That's what my bearings looked like until I made the small mod on my layshaft spacer. Lubrication of those small bearings is KEY for getting a decent service life from the bearing.
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