Babbitt Stern Tube Propeller Shaft Bearings

Oil Lubricated Babbitt Marine Propeller Shaft Bearings

From 2" to 39" Shafts

Drawing and Sizes / Part Numbers

How to Choose A Propeller or Rudder Shaft Bearing and the Differences Between Bearing Types

Standard Product Options:

Grey cast iron and lead / tin based Babbitt

Nodular cast iron and lead / tin based Babbitt

Steel and lead / tin base Babbitt

White Metals:

Lead base PbSb10Sn6

Tin base SnSb12Cu6Pb

Cast Irons:

Grey GG-25-DIN 1691

Nodular GGG-40 - DIN 1693

Steel:

ST52 - DIN 17 100

Babbitt type oil lubricated propeller shaft bearings are used when a closed oil system lubricates the stern tube bearings and the propeller shaft seal. No sea water is needed to enter the hull of the ship. In an oil lubricated system there will be both an inboard and outboard propeller seal, one on each end of the stern tube, keeping the oil contained.

The advantages of this system are only that sea water is not needed for cooling of the seal and bearings. This is ideal in some cases for vessel that operate in silty water on a constant basis. The disadvantages are high cost both initial and during retrofit and if biodegradable oils are not used, the chance of leaking of oil.

[ Home ] [ Up ] [ Cutless Bearings - Cutlass Bearing ] [ Rudder Bearings ] [ Split Roller Propeller Shaft Bearings ] [ Babbit Propeller Shaft Bearings ] [ Composite Bearings ] [ Demountable Stave Propeller Shaft Bearings ] [ Babbitt Stern Tube Propeller Shaft Bearings ] [ Romor I, Class II Stave Propeller Shaft Bearings ] [ Brass Backed Stave Propeller Shaft Bearings ] [ How to Choose A Propeller Shaft Bearing Or Rudder Shaft Bearing ]

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