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Old 11-10-2008, 07:22 AM
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XPC Sealman XPC Sealman is offline
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Join Date: Jun 2006
Boat: N/A
Location: SW Mich & Tennessee
Posts: 65

For those of you new to these strut bearings they are called Vesconite Hilube bearings. They are superior to the rubber/brass bearings of old. The traditional bearings needed a shaft diameter to bearing length ratio of 4:1. The Vesconite can handle a much lower ratio (even less than what is used). These bearings are very quiet and they are the premium in marine drive bearings. The photo shows a bearing that is in need of replacement without a doubt. I can tell you if it were a rubber bearing in that same position the shaft would have been shot! This boat had some obvious alignment issues. These bearings last longer, are easy on the shaft wear and are much quicker to service. The coefficient of friction on the rubber bearings is around .36 and this Hilube is around .09 this all relates to less friction and a smoother more quiet drive system. The difference in length is not an issue.
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