propeller, stern tube, and rudders

The marine industry continues to innovate, using advanced propulsion designs, improved hull design, and a mix of novel and historical building practices to produce vessels with higher operating efficiencies, and enhanced safety and monitoring systems. Vessel operators are looking for alternative solutions for reducing costs and extended service intervals.

Stern tube and rudder bearings made from CIP Composite materials are ideal for replacing rubber lined, wood products and bronze. Columbia Industrial Products offers emergency support, minimizing dry dock time. CIP Composites are easily machined onsite and can be freeze fitted or press fitted. Our knowledgeable team can provide technical support for the design calculations for interference and clearance fits for your application.

We recommend using CIP Marine™ and CIP 252 for most marine applications. Our sales team will recommend the best material for your specific application. 


Propeller shaft bearing

Propeller shaft bearing designs can include axial grooves to provide better water flow and lubrication in high speed applications and help promote better hydrodynamic operation.

strut bearing

Installed CIP strut bearing.

marine rudder

CIP Marine rudder bearings generally do not include axial radial grooves and are smooth on the inside.