Bearing

A support for a shaft journal, and in which it revolves or vibrates. Main Bearing. That nearest to the crank.

Spring Bearing. Those supports between the engine and wheel which support the weight of and steady the shaft.

Stern Bearing. The long bearing built into the after-end of a screw vessel, and through which the shaft passes. It is arranged to support the after-end of the shaft, allow it to revolve freely, and prevent water leaking past it into the vessel.

Thrust Bearing. That one about a screw propeller shaft which is arranged to receive the pressure due to the revolving screw and transmit it to the hull of the vessel.