Author Archives: Khashayar Hajiahmad

🚀 Machinery Lubrication – Level I | Online Training Course Machinery Lubrication I SyllabusDownload I am pleased to announce the upcoming Machinery Lubrication – Level I training course in collaboration with VIBSYS, Mobius Institute, and Noria. We are pleased to announce the Online Noria Level I Machinery Lubrication Course, scheduled to start in July 2026, delivered by Khash & VIBSYS. This course is designedContinueContinue reading “🚀 Machinery Lubrication – Level I | Online Training Course”

Proposal for Open-Ended Lubrication Management Consultancy Services Aligned with ICML 55 Lubricated Asset Management Principles Submitted by: Khash Submitted to: [Client Name] Site/Facility: [Plant/Site Name] Effective Date: [Date] Agreement Type: Open-Ended / Call-Off Consultancy Support Agreement 1. Executive Summary Khash proposes to provide specialized consultancy services in the field of industrial lubrication, lubricant management, machineryContinueContinue reading “Proposal for Open-Ended Lubrication Management Consultancy Services”

Sharing my way of doing the RCFA and proposing improvements Khash_Varnish_Failure_Analysis_Questionnaire_RCFA_ReportDownload For sharing practical cases, contact me.

When OEM Gives Many Grease or Oil Options for the Same Application: Khash’s Practical View on Comparison and Selection By Khash For many years, I have seen OEM recommendation pages where one machine, one gearbox, one bearing, one hydraulic system, or one open gear application is shown with many acceptable oils or greases. At firstContinueContinue reading “When OEM Gives Many Grease or Oil Options for the Same Application: Khash’s Practical View on Comparison and Selection”

Abstract Lubricant viscosity is the single most important property affecting oil film thickness, load-carrying capacity, friction, wear, and overall reliability in turbomachinery. This paper explores the critical relationships between viscosity and key lubrication mechanisms—including hydrodynamic and Elastohydrodynamic lubrication—along with their impact on bearing performance. Factors such as temperature effects, fuel dilution, contamination, shear degradation, andContinueContinue reading “The Impact of Lubricant Viscosity Loss on Oil Film Thickness, Lubrication Regime and Bearing Reliability in Turbomachinery”

📅 Book a Meeting with Khash – Lubrication & Bearing Reliability Support Looking to solve persistent lubrication or bearing problems in your plant? Whether you are dealing with:✅ High bearing temperatures✅ Repeated bearing failures✅ Grease lubrication challenges✅ Oil contamination and varnish issues✅ Turbomachinery reliability concerns✅ Condition monitoring interpretation✅ Lubrication program development✅ ICML Certification preparation (MLA,ContinueContinue reading “📅 Book a Meeting with Khash – Lubrication & Bearing Reliability Support”

Today is an important day in my career that I am not an employee but I would spending time on my dream of being a full time trainer and consultant in Lubrication by Noria Corporation. Wrote below to share with you Khash feelings. Letter of Recommendation – Khashayar HajiahmadDownload Today marks a major milestone inContinueContinue reading “Today marks a major milestone in Khash career”

Practical technical article Executive answer Yes — inspection ports can be integrated into turbomachinery bearing return lines to assess the varnish potential of the passing hot oil, but the correct design is not a simple sight glass. The practical design is a bearing-material witness inspection port: a visible, oil-wetted inspection chamber containing a removable coupon made from theContinueContinue reading “Can Inspection Ports Be Integrated in Turbomachinery Bearing Return Lines to Assess Varnish Potential Using Bearing-Material Witness Surfaces?”

Before I attend tomorrow webinar by Atten2 ( https://atten2.com/en/ ) wanted to share all I know on this matter Unplanned Downtime Starts Before Failure: Aeroderivative Turbines, Oil Chemistry, and the Lubrication Blind Spot By Khash — MLE, CLS, MLA III, MLT II, VIM, VPR Aeroderivative gas turbines are built for speed, flexibility, and high powerContinueContinue reading “Unplanned Downtime Starts Before Failure: Aeroderivative Turbines, Oil Chemistry, and the Lubrication Blind Spot”

An Oil And Gas industry Reliability Engineer asked me.: Can you help me while am I doing RCM study on the lubricated components of a turbomachinery? I replied back with below content: Can We Do an RCM Study on the Lubricated Components of Turbomachinery? By Khash Yes, you absolutely can do an RCM study onContinueContinue reading “Can We Do an RCM Study on the Lubricated Components of Turbomachinery?”