PH Marine supply a range of water lubricated shaft bearings in imperial (¾” to 6” shaft diameters) and metric (25mm to 150mm shaft diameters) sizes, featuring a specially formulated rubber, moulded into a shell material. The rubber used is an extremely tough, chemical and oil resistant nitrile with a low coefficient of running friction, which offers outstanding resistance to abrasion and wear, even in the most adverse conditions.

Shell Materials
Three options of shell material are available through PH Marine:

Corrosion resistant brass tube
Phenolic bonded paper tube – brown in colour
Glass Reinforced Plastic (GRP) tube – off white in colour

The Phenolic or GRP shell materials are designed to suit applications where galvanic corrosion is an issue, such as with aluminium hulled boats.

In addition GRP shell bearings do not swell in sea water and match all of the service parameters of a brass shell bearing, whilst being 60% lighter and impact resistant. A two part epoxy adhesive can be used to retain the bearing within the housing which removes the need to use grub screws.