Tribology is the science and engineering of interacting surfaces in relative motion.

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The Tribology Experts - Neale Consulting Engineers

We specialise in Tribology consultancy, solving Mechanical Engineering problems worldwide.Companies rely on our Tribology expertise and experience of mechanical failures to ensure machines operate safely and reliably.

Our Services

Mechanical Design Evaluation

Our Tribology experts regularly assess 'fitness for purpose' of mechanical designs - helping to prevent future failure and malfunction. They use Tribology know-how coupled with first-principle analysis to ensure machine reliability.

Failure Analysis

We have over 50 years of experience in diagnosing and resolving an extensive range of mechanical and tribological failures. These include: Gear failures Plain bearing failures, Rolling bearing failures and Seal failures.

Tribology Reference Books

We have distilled our extensive experience of machine operation and mechanical failure analysis into many books. These are used by Mechanical Engineers as reference texts for the design and analysis of machine elements including bearings, gears and seals.

Litigation - Expert Witness

We act as engineering expert witnesses for litigation purposes, both in the UK and overseas. Cases range from patent infringements and project disputes between companies to litigation arising from international disasters.

Analysis & Calculation

We regularly complete detailed engineering analyses of machine elements, bearings and structures. A service that is invaluable in both determining failure root causes and evaluating new designs.


We have completed consulting projects all over the world. We regularly travel to international locations to bring our expert consultancy services and Tribology experience to those who need it most.

The Tribology Handbook

Image of the cover of the tribology handbook

The De-Facto Tribology Reference

Ever since it was first published 20 years ago, The Tribology Handbook has been the standard reference 'Bible' for generations of engineers the world over.

The Book's Primary Aim

It aims to provide instant access to essential information on the performance of tribological components, and is aimed particularly at designers and engineers in industry.

For Machine Designers and Tribologists

Designers of machines should also find the contents of the book extremely helpful, because they provide an atlas of component performance.

Order Your Copy By Clicking Here

The Tribology Handbook is published by Elsevier. ISBN 0 7506 1198 7. It can also be purchased from Amazon.

About Us


Neale Consulting Engineers Ltd. provides impartial advice and has no ties to manufacturing companies. The Company only works for organisations that seek an un-biased solution to their problems..


Our opinion is accepted internationally by companies, courts of law and governments. Neale Consulting Engineers has acted as Expert Witness in many international legal cases.


Neale Consulting Engineers offer instant response to organisations requiring rapid solutions to their failure and wear problems..

Latest Articles

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Diagnosing plain bearing failures is all about recognising the tell-tale signs of different wear out and other failure modes.  This page lists the majority of these different plain bearing failure modes with detailed images showing their typical wear-patterns.  

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Piston Ring Design and Operation

This page is intended to help designers and development engineers with the solution of practical problems, involving the pistons and rings of internal combustion engines. It represents a distillation of the contents of about 100 reports and articles which contain useful data, but have probably not been read by many engineers in industry.


The Mechanisms of Piston Ring Operation

This article of the attempts to condense the available data on the various aspects of piston ring performance into a more complete and readable form than that in which it is otherwise available.

Neale Consulting Engineers - Solving Mechanical Failures For Over 50 Years

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