Thrust Bearings - Main Engine and Propulsion

Marine thrust bearings absorb axial propeller thrust and transmit it to the vessel structure while allowing the propulsion shaft to rotate. Main propulsion systems commonly use hydrodynamic tilting-pad thrust blocks or spherical roller thrust bearings.

ProShipWorks provides end-to-end support to source and supply Thrust Bearings for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

Last updated: October 11, 2026

Product Information

Product Name	Thrust Bearings
Product Category	Main Engine and Propulsion
Product Reference	11
Brands / Manufacturers	Michell Bearings, Kingsbury, SKF
Unit of Measure	Piece

Key Features

Key Feature
1. Designed for high axial loads from propeller thrust
2. Tilting pads promote stable hydrodynamic oil-film formation
3. Available for ahead and astern thrust directions
4. Lubricated and cooled by integrated or external oil systems
5. Temperature and oil-pressure monitoring can be incorporated

Applications of Thrust Bearings

Application
1. Main engine propulsion shaft lines
2. Marine reduction gearboxes
3. Thrusters and auxiliary propulsion systems

Models & Manufacturers

Model	Manufacturer
Michell Marine Thrust Block	Michell Bearings
Equalizing Tilting-Pad Thrust Bearing	Kingsbury
294 Series	SKF

Technical Specifications

Model	Specification	Value	Unit
Michell Marine Thrust Block	Bearing principle	Hydrodynamic tilting-pad	—
Michell Marine Thrust Block	Thrust direction	Ahead and astern configurations available	—
Equalizing Tilting-Pad Thrust Bearing	Load distribution	Equalized across tilting pads	—
294 Series	Bearing type	Spherical roller thrust bearing	—
294 Series	Misalignment capability	Self-aligning	—

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification	Rolling-bearing dimensions and ratings may follow ISO 104 and ISO 281. Hydrodynamic propulsion thrust bearings are engineered to manufacturer specifications and applicable flag-state and classification-society shafting rules.
Class Approval	Propulsion thrust-bearing arrangements may be reviewed or certified by DNV, ABS, Lloyd's Register, Bureau Veritas, ClassNK or other vessel class societies. Approval is project-specific and depends on load calculations, lubrication, monitoring and shaft-line design.

Installation, Maintenance & Safety Information

Installation Notes	Mount on a rigid, accurately aligned foundation. Verify shaft-line alignment, axial clearance, pad orientation, oil supply, cooling flow and sensor settings against the manufacturer-approved drawing. Flush lubrication piping before commissioning.
Maintenance Tips	Monitor bearing metal temperature, oil pressure, flow, cleanliness and vibration. Analyze lubricant periodically and inspect pads, collars, clearances and filters at scheduled overhauls. Investigate abnormal temperature or metallic debris immediately.
Safety Notes	Isolate and lock out the engine, shaft turning gear and lubrication system before work. Do not operate without confirmed oil flow and cooling. Use approved lifting arrangements because thrust blocks and collars are heavy precision components.