Turbocharger Bearings and Seals - Main Engine and Propulsion

Turbocharger bearings support the rotor shaft and control radial and axial movement, while seals limit lubricating-oil leakage and prevent exhaust gas or charge air ingress. These precision spares are selected for the exact marine turbocharger model and operating clearance.

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

Last updated: October 11, 2026

Product Information

Product Name	Turbocharger Bearings and Seals
Product Category	Main Engine and Propulsion
Product Reference	309
Brands / Manufacturers	Accelleron, MAN Energy Solutions, Mitsubishi Heavy Industries
Unit of Measure	Set

Key Features

Key Feature
1. Radial journal bearings support high-speed rotor rotation
2. Thrust bearings control axial rotor movement
3. Labyrinth sealing limits oil, exhaust gas and charge-air migration
4. Manufactured to model-specific dimensions and running clearances
5. Designed for continuous service under high temperature and rotational speed

Applications of Turbocharger Bearings and Seals

Application
1. Main propulsion diesel engine turbochargers
2. Auxiliary marine diesel engine turbochargers
3. Turbocharger overhaul and rotor-bearing restoration

Models & Manufacturers

Model	Manufacturer
TPS series	Accelleron
TPL series	Accelleron
TCA series	MAN Energy Solutions
MET-MBII series	Mitsubishi Heavy Industries

Technical Specifications

Model	Specification	Value	Unit
TPS series	Bearing arrangement	Radial journal and axial thrust bearing system; dimensions are turbocharger-size specific	—
TPL series	Bearing arrangement	Inboard plain-bearing system supplied by the engine lubricating-oil circuit	—
TCA series	Seal type	Non-contact labyrinth sealing; configuration is model and application specific	—
MET-MBII series	Lubrication	Pressure lubrication using specified engine-system oil	—

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	Rotor balancing may be performed to applicable ISO 21940 requirements. Bearing materials, clearances, lubrication and seal arrangements must comply with the turbocharger manufacturer's technical documentation and the engine's approved configuration.
Class Approval	DNV, ABS, Lloyd's Register, Bureau Veritas and ClassNK may accept these parts as components of classed engine machinery. Individual bearings and seals generally require OEM traceability or class acceptance rather than standalone type approval.

Installation, Maintenance & Safety Information

Installation Notes	Confirm turbocharger type, serial number and part number. Clean oil passages, measure shaft journals and housing bores, observe bearing orientation and OEM clearances, pre-lubricate parts, and verify free rotor rotation before startup.
Maintenance Tips	Maintain correct oil grade, pressure, temperature and cleanliness. Inspect bearings for scoring, wiping, overheating and excess clearance; inspect labyrinths and seal rings for wear or deposits. Renew parts at OEM overhaul intervals.
Safety Notes	Stop, isolate and cool the engine before work. Prevent foreign-object entry, use approved lifting and rotor-handling tools, and never reuse damaged locking devices. After assembly, prime the oil system and monitor vibration, oil leakage and exhaust temperature.