Having a properly supported propeller shaft is critical to a boat’s safety and reliability. Inadequate spacing between shaft bearings coupled with worn-out cutless bearings can be a recipe for disaster; especially on today’s higher horsepower vessels. It’s important that you have these components inspected annually (or more frequently) by an experienced marine mechanic or engineer.
R.E. Thomas Marine Hardware manufactures a complete line of shaft bearings to help ensure your boat’s running gear stands up to the demands you place on it. Whether you’re having a new boat built, you’re restoring a classic yacht, or you’re re-powering your current boat, ask your boat builder or service yard about R.E. Thomas’s high quality bearings proudly manufactured in the USA.
In addition to heavy duty stern bearings, we manufacture intermediate mid-ship bearings and forward end shaft bearings as well. Our forward bearings can also be fitted with our innovative “floating” self-aligning stuffing box (shaft seal) which we feel is a much safer setup than the so-called “dripless” shaft seals available on the market.
Refer to the shaft bearing sizing charts below and give us a call with any questions you may have or to place an order.
Shaft Bearing Specifications and Sizing Guide:
ISB Series / Inside Forward Bearing
ISB Series / Inside Mid-ship Bearing
ISB-SA Combo Stuffing Box:
Here’s an example of our ISB forward propeller shaft bearing configured with our self-aligning stuffing box.