(nautical) A bearing on the drive shaft of a vessel, usually made of brass with an inner grooved rubber lining that is lubricated by the surrounding water entering the grooves as it rotates. It is a variant of the Stave bearing quotations
When you replace a drive shaft on your boat, it is also a good idea to replace the cutlass bearing where the drive shaft exits the boat.
The original term is cutless bearing, but that is a trade name (Johnson Duramax Marine), and the corruption "cutlass bearing" is in common use.
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