---
title: Ducom Instruments Blog
---

[![Ducom - Logo - Full - Vector (90 Gray and Light Blue-Inverted) - PNG](https://blog.ducom.com/hs-fs/hubfs/DUCOM/Logos/Ducom%20Logos/Ducom%20-%20Logo%20-%20Full%20-%20Vector%20(90%20Gray%20and%20Light%20Blue-Inverted)%20-%20PNG.png?width=925&height=246&name=Ducom%20-%20Logo%20-%20Full%20-%20Vector%20(90%20Gray%20and%20Light%20Blue-Inverted)%20-%20PNG.png "Ducom - Logo - Full - Vector (90 Gray and Light Blue-Inverted) - PNG")](https://www.ducom.com)

- Products
- Services
- Resources 
    - [Blog](https://blog.ducom.com)
    - [Tribology Discussions](https://lp.ducom.com/tribology-discussions)
- Company 
    - [About Us](https://www.ducom.com/about-ducom-instruments)
    - [Locations](https://www.ducom.com/company-contact-us)
    - Support 
          - [After Sales Support](https://www.ducom.com/support)
          - [Instrument Service Plans](https://www.ducom.com/instrument-service-plan)

#### General Tribology

- [Universal Tester - UNITEST](https://www.ducom.com/universal-tester-unitest)
- [Multi Capability Tribometer - POD 4.0](https://www.ducom.com/multi-capability-tribometer-pin/ball-on-disk)
- [Vacuum Tribometer - VT 3.0](https://www.ducom.com/vacuum-tribometer)
- [Abrasion Tester - Dry and Slurry](https://www.ducom.com/abrasion-tester)
- [Erosion Tester - Air Jet](https://www.ducom.com/air-jet-erosion-tester)
- [Erosion Tester - Slurry Jet](https://www.ducom.com/slurry-jet-erosion-tester)
- [Erosion Tester - Water Droplet](https://www.ducom.com/water-droplet-erosion-tester)
- [Twin Disk Tribometer](https://www.ducom.com/twin-disk-roller-on-roller-tribometer)
- [BioTribometer](https://www.ducom.com/biotribometer)

#### Lubricant Tribology

- [Four Ball Tester (Desktop)](https://www.ducom.com/four-ball-tester-fbt-3)
- [Four Ball Tester (Standard)](https://www.ducom.com/four-ball-tester-tr-30-series)
- [High Frequency Reciprocating Rig (HFRR)](https://www.ducom.com/high-frequency-reciprocating-rig-hfrr)
- [KRL Shear Stability Tester](https://www.ducom.com/krl-shear-stability-tester)
- [Low Temperature Torque Tester](https://www.ducom.com/low-temperature-torque-tester)

#### Petroleum Testers

- [Flash Point Tester - Pensky Martens](https://www.ducom.com/pensky-martens-flash-point-tester)
- [Flash Point Tester - Abel](https://www.ducom.com/abel-flash-point-tester)
- [Flash Point Tester - Cleveland](https://www.ducom.com/cleveland-flash-point-tester)
- [Freezing Point Tester](https://www.ducom.com/freezing-point-tester)
- [Cloud Point Tester](https://www.ducom.com/cloud-and-pour-point-tester)
- [Pour Point Tester](https://www.ducom.com/pour-point-tester)
- [Roll Stability Tester](https://www.ducom.com/roll-stability-tester)
- [Noack Volatility Test Apparatus](https://www.ducom.com/noack-volatility-tester)
- [BOCLE - ATF Fuel Lubricity Tester](https://www.ducom.com/product-ball-on-cylinder-lubricity-evaluator-bocle)
- [Shear Stability Tester (Diesel Injector)](https://www.ducom.com/product-shear-stability-tester-diesel-injector)

#### See our full range of products

[![Explore All Our Products](https://no-cache.hubspot.com/cta/default/5735947/8c0055af-2ff0-4aad-aa83-42dcde0c56f4.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/8c0055af-2ff0-4aad-aa83-42dcde0c56f4)

#### MOOHA - Digital Lab Assistant

MOOHA is an A.I. enabled digital lab assistant that can assist you with automatically logging data, maintaining an audit trail, performing statistical analysis and accessing data and instrument health and status instantly via a secure encrypted interface.

[![Learn more about MOOHA](https://no-cache.hubspot.com/cta/default/5735947/78fb441a-de0c-4a9e-bf49-85bbcd080e46.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/78fb441a-de0c-4a9e-bf49-85bbcd080e46)

#### Ducom Test Lab

The Ducom Test Lab can be an extension of your quality or R&D department. Our experienced and knowledgeable application scientists and lab technicians can help you with finding the right test methods, designing test programs and delivering results. 

[![Contract Test Lab](https://no-cache.hubspot.com/cta/default/5735947/17c38921-6c5f-4d81-bd5d-e810fb2b1b68.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/17c38921-6c5f-4d81-bd5d-e810fb2b1b68)

#### Knowledge

- [Blog](https://blog.ducom.com)
- [E-Books](https://www.ducom.com/e-books)

#### Events

- [WEBINAR | Tribology Discussions](https://lp.ducom.com/tribology-discussions)
- [Conferences and Tradeshows](https://www.ducom.com/conferences-and-tradeshows)

#### Company

- [About Us](https://www.ducom.com/about-ducom-instruments)
- [Locations](https://www.ducom.com/company-contact-us)

#### Work with us

- [Job Openings](https://www.ducom.com/careers)
- [Become a sales partner](https://lp.ducom.com/distributor-training)

#### After Sales Support

- [Get Support](https://www.ducom.com/support)
- [Instrument Service Plans](https://www.ducom.com/instrument-service-plan)

[![Ducom - Logo - Full - Vector (90 Gray and Light Blue-Inverted)](https://blog.ducom.com/hs-fs/hubfs/DUCOM/Logos/Ducom%20Logos/Ducom%20-%20Logo%20-%20Full%20-%20Vector%20(90%20Gray%20and%20Light%20Blue-Inverted).png?width=564&height=150&name=Ducom%20-%20Logo%20-%20Full%20-%20Vector%20(90%20Gray%20and%20Light%20Blue-Inverted).png "Ducom - Logo - Full - Vector (90 Gray and Light Blue-Inverted)")](https://blog.ducom.com/www.ducom.com)

- Products
- Services
- Resources 
    - [Blog](https://blog.ducom.com)
    - [Tribology Discussions](https://lp.ducom.com/tribology-discussions)
- Company 
    - [About Us](https://www.ducom.com/about-ducom-instruments)
    - [Locations](https://www.ducom.com/company-contact-us)
    - Support 
          - [After Sales Support](https://www.ducom.com/support)
          - [Instrument Service Plans](https://www.ducom.com/instrument-service-plan)

#### General Tribology

- [Universal Tester - UNITEST](https://www.ducom.com/universal-tester-unitest)
- [Multi Capability Tribometer - POD 4.0](https://www.ducom.com/multi-capability-tribometer-pin/ball-on-disk)
- [Vacuum Tribometer - VT 3.0](https://www.ducom.com/vacuum-tribometer)
- [Abrasion Tester - Dry and Slurry](https://www.ducom.com/abrasion-tester)
- [Erosion Tester - Air Jet](https://www.ducom.com/air-jet-erosion-tester)
- [Erosion Tester - Slurry Jet](https://www.ducom.com/slurry-jet-erosion-tester)
- [Erosion Tester - Water Droplet](https://www.ducom.com/water-droplet-erosion-tester)
- [Twin Disk Tribometer](https://www.ducom.com/twin-disk-roller-on-roller-tribometer)
- [BioTribometer](https://www.ducom.com/biotribometer)

#### Lubricant Tribology

- [Four Ball Tester (Desktop)](https://www.ducom.com/four-ball-tester-fbt-3)
- [Four Ball Tester (Standard)](https://www.ducom.com/four-ball-tester-tr-30-series)
- [High Frequency Reciprocating Rig (HFRR)](https://www.ducom.com/high-frequency-reciprocating-rig-hfrr)
- [KRL Shear Stability Tester](https://www.ducom.com/krl-shear-stability-tester)
- [Low Temperature Torque Tester](https://www.ducom.com/low-temperature-torque-tester)

#### Petroleum Testers

- [Flash Point Tester - Pensky Martens](https://www.ducom.com/pensky-martens-flash-point-tester)
- [Flash Point Tester - Abel](https://www.ducom.com/abel-flash-point-tester)
- [Flash Point Tester - Cleveland](https://www.ducom.com/cleveland-flash-point-tester)
- [Freezing Point Tester](https://www.ducom.com/freezing-point-tester)
- [Cloud Point Tester](https://www.ducom.com/cloud-and-pour-point-tester)
- [Pour Point Tester](https://www.ducom.com/pour-point-tester)
- [Roll Stability Tester](https://www.ducom.com/roll-stability-tester)
- [Noack Volatility Test Apparatus](https://www.ducom.com/noack-volatility-tester)
- [BOCLE - ATF Fuel Lubricity Tester](https://www.ducom.com/product-ball-on-cylinder-lubricity-evaluator-bocle)
- [Shear Stability Tester (Diesel Injector)](https://www.ducom.com/product-shear-stability-tester-diesel-injector)

#### See our full range of products

[![Explore All Our Products](https://no-cache.hubspot.com/cta/default/5735947/8c0055af-2ff0-4aad-aa83-42dcde0c56f4.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/8c0055af-2ff0-4aad-aa83-42dcde0c56f4)

#### MOOHA - Digital Lab Assistant

MOOHA is an A.I. enabled digital lab assistant that can assist you with automatically logging data, maintaining an audit trail, performing statistical analysis and accessing data and instrument health and status instantly via a secure encrypted interface.

[![Learn more about MOOHA](https://no-cache.hubspot.com/cta/default/5735947/78fb441a-de0c-4a9e-bf49-85bbcd080e46.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/78fb441a-de0c-4a9e-bf49-85bbcd080e46)

#### Ducom Test Lab

The Ducom Test Lab can be an extension of your quality or R&D department. Our experienced and knowledgeable application scientists and lab technicians can help you with finding the right test methods, designing test programs and delivering results. 

[![Contract Test Lab](https://no-cache.hubspot.com/cta/default/5735947/17c38921-6c5f-4d81-bd5d-e810fb2b1b68.png)](https://cta-redirect.hubspot.com/cta/redirect/5735947/17c38921-6c5f-4d81-bd5d-e810fb2b1b68)

#### Knowledge

- [Blog](https://blog.ducom.com)
- [E-Books](https://www.ducom.com/e-books)

#### Events

- [WEBINAR | Tribology Discussions](https://lp.ducom.com/tribology-discussions)
- [Conferences and Tradeshows](https://www.ducom.com/conferences-and-tradeshows)

#### Company

- [About Us](https://www.ducom.com/about-ducom-instruments)
- [Locations](https://www.ducom.com/company-contact-us)

#### Work with us

- [Careers](https://ducom.freshteam.com/jobs)
- [Become a sales partner](https://lp.ducom.com/distributor-training)

#### After Sales Support

- [Get Support](https://www.ducom.com/support)
- [Instrument Service Plans](https://www.ducom.com/instrument-service-plan)

Search

**Menu**

- [Instruments](https://www.ducom.com/products-explorer)
- [Testing Services](https://www.ducom.com/ducom-labs-testing-and-consulting-services)
- [Software](https://www.ducom.com/digital)
- [Blog](https://blog.ducom.com)
- Support 
    - [After Sales Support](https://www.ducom.com/support)
    - [Service Plans](https://www.ducom.com/instrument-service-plan)
- Company 
    - [About Us](https://www.ducom.com/about-ducom-instruments)
    - [Locations](https://www.ducom.com/company-contact-us)

![](https://blog.ducom.com/hubfs/Ducom%20Four%20Ball%20Tester%20FBT-3%20-%20Featured%20Image.png)

# Ducom Instruments Blog

More about this blog

## [Everything You Need to Know About Four-Ball Wear Testing](https://blog.ducom.com/everything-you-need-to-know-about-four-ball-wear-testing)

 March, 2026

| [four ball tester](https://blog.ducom.com/tag/four-ball-tester) | [WP](https://blog.ducom.com/tag/wp) | [Lubricants](https://blog.ducom.com/tag/lubricants) | [extreme pressure](https://blog.ducom.com/tag/extreme-pressure)

| 8 min read

[Read More →](https://blog.ducom.com/everything-you-need-to-know-about-four-ball-wear-testing)

### Categories

- [friction (18)](https://blog.ducom.com/tag/friction)
- [four ball tester (13)](https://blog.ducom.com/tag/four-ball-tester)
- [wear (13)](https://blog.ducom.com/tag/wear)
- [high temperature (12)](https://blog.ducom.com/tag/high-temperature)
- [Erosion (9)](https://blog.ducom.com/tag/erosion)
- [Ball Wear (8)](https://blog.ducom.com/tag/ball-wear)
- [Lubricants (8)](https://blog.ducom.com/tag/lubricants)
- [POD 4.0 (8)](https://blog.ducom.com/tag/pod-4-0)
- [Twin Disk (8)](https://blog.ducom.com/tag/twin-disk)
- [FBT (7)](https://blog.ducom.com/tag/fbt)
- [HFRR (7)](https://blog.ducom.com/tag/hfrr)
- [Traction (7)](https://blog.ducom.com/tag/traction)
- [Coatings (6)](https://blog.ducom.com/tag/coatings)
- [UniTest (6)](https://blog.ducom.com/tag/unitest)
- [Air Jet Erosion Tester (5)](https://blog.ducom.com/tag/air-jet-erosion-tester)
- [Scuffing (5)](https://blog.ducom.com/tag/scuffing)
- [extreme pressure (5)](https://blog.ducom.com/tag/extreme-pressure)
- [KRL (4)](https://blog.ducom.com/tag/krl)
- [Scientific Community (4)](https://blog.ducom.com/tag/scientific-community)
- [Slip Ratio (4)](https://blog.ducom.com/tag/slip-ratio)
- [Stribeck Curve (4)](https://blog.ducom.com/tag/stribeck-curve)
- [WP (4)](https://blog.ducom.com/tag/wp)
- [astm g76 (4)](https://blog.ducom.com/tag/astm-g76)
- [in-situ (4)](https://blog.ducom.com/tag/in-situ)
- [Adhesion (3)](https://blog.ducom.com/tag/adhesion)
- [Electric Vehicles (3)](https://blog.ducom.com/tag/electric-vehicles)
- [Grease (3)](https://blog.ducom.com/tag/grease)
- [High Load (3)](https://blog.ducom.com/tag/high-load)
- [MOOHA (3)](https://blog.ducom.com/tag/mooha)
- [Pitting (3)](https://blog.ducom.com/tag/pitting)
- [Profilometer (3)](https://blog.ducom.com/tag/profilometer)
- [Scratch (3)](https://blog.ducom.com/tag/scratch)
- [Transmission Fluids (3)](https://blog.ducom.com/tag/transmission-fluids)
- [abrasion (3)](https://blog.ducom.com/tag/abrasion)
- [fuel (3)](https://blog.ducom.com/tag/fuel)
- [lubricity (3)](https://blog.ducom.com/tag/lubricity)
- [wind turbine (3)](https://blog.ducom.com/tag/wind-turbine)
- [ASTM G65 (2)](https://blog.ducom.com/tag/astm-g65)
- [BOCLE (2)](https://blog.ducom.com/tag/bocle)
- [CEC-L-45-99 (2)](https://blog.ducom.com/tag/cec-l-45-99)
- [Diesel Fuel Lubricity (2)](https://blog.ducom.com/tag/diesel-fuel-lubricity)
- [Digital Tools (2)](https://blog.ducom.com/tag/digital-tools)
- [Digital Twins (2)](https://blog.ducom.com/tag/digital-twins)
- [EN 590 (2)](https://blog.ducom.com/tag/en-590)
- [Engine oil (2)](https://blog.ducom.com/tag/engine-oil)
- [FZG (2)](https://blog.ducom.com/tag/fzg)
- [ISO 12156 (2)](https://blog.ducom.com/tag/iso-12156)
- [Italy (2)](https://blog.ducom.com/tag/italy)
- [Load Wear Index (2)](https://blog.ducom.com/tag/load-wear-index)
- [Low Temperature Torque (2)](https://blog.ducom.com/tag/low-temperature-torque)
- [Power Plant (2)](https://blog.ducom.com/tag/power-plant)
- [Productivity (2)](https://blog.ducom.com/tag/productivity)
- [Railway Lubricants (2)](https://blog.ducom.com/tag/railway-lubricants)
- [STLE (2)](https://blog.ducom.com/tag/stle)
- [Seizure (2)](https://blog.ducom.com/tag/seizure)
- [Thermal Barrier Coatings (2)](https://blog.ducom.com/tag/thermal-barrier-coatings)
- [Thermal Conductivity (2)](https://blog.ducom.com/tag/thermal-conductivity)
- [Traction Machine (2)](https://blog.ducom.com/tag/traction-machine)
- [Turbofan Engine (2)](https://blog.ducom.com/tag/turbofan-engine)
- [Twin Disc (2)](https://blog.ducom.com/tag/twin-disc)
- [additive depletion (2)](https://blog.ducom.com/tag/additive-depletion)
- [anti-wear (2)](https://blog.ducom.com/tag/anti-wear)
- [bearings (2)](https://blog.ducom.com/tag/bearings)
- [biomaterials (2)](https://blog.ducom.com/tag/biomaterials)
- [biotribometer (2)](https://blog.ducom.com/tag/biotribometer)
- [brake pads (2)](https://blog.ducom.com/tag/brake-pads)
- [mining (2)](https://blog.ducom.com/tag/mining)
- [reference material (2)](https://blog.ducom.com/tag/reference-material)
- [renewable energy (2)](https://blog.ducom.com/tag/renewable-energy)
- [shear stability (2)](https://blog.ducom.com/tag/shear-stability)
- [transmission oil (2)](https://blog.ducom.com/tag/transmission-oil)
- [tribocorrosion (2)](https://blog.ducom.com/tag/tribocorrosion)
- [tribometers (2)](https://blog.ducom.com/tag/tribometers)
- [viscosity loss (2)](https://blog.ducom.com/tag/viscosity-loss)
- [1000 °C (1)](https://blog.ducom.com/tag/1000-c)
- [AI (1)](https://blog.ducom.com/tag/ai)
- [ASTM D1478 (1)](https://blog.ducom.com/tag/astm-d1478)
- [ASTM D2783 (1)](https://blog.ducom.com/tag/astm-d2783)
- [ASTM D4172 (1)](https://blog.ducom.com/tag/astm-d4172)
- [ASTM D4693 (1)](https://blog.ducom.com/tag/astm-d4693)
- [ASTM D5183 (1)](https://blog.ducom.com/tag/astm-d5183)
- [ASTM D6079 (1)](https://blog.ducom.com/tag/astm-d6079)
- [ASTM F732 (1)](https://blog.ducom.com/tag/astm-f732)
- [ASTM PTP (1)](https://blog.ducom.com/tag/astm-ptp)
- [ATF (1)](https://blog.ducom.com/tag/atf)
- [Alumina (1)](https://blog.ducom.com/tag/alumina)
- [Amir Alan Bahri (1)](https://blog.ducom.com/tag/amir-alan-bahri)
- [Australia (1)](https://blog.ducom.com/tag/australia)
- [Automation (1)](https://blog.ducom.com/tag/automation)
- [Bangalore, India (1)](https://blog.ducom.com/tag/bangalore-india)
- [Brembo (1)](https://blog.ducom.com/tag/brembo)
- [Carl Bechem (1)](https://blog.ducom.com/tag/carl-bechem)
- [Ceramics (1)](https://blog.ducom.com/tag/ceramics)
- [Confocal (1)](https://blog.ducom.com/tag/confocal)
- [Coronavirus (1)](https://blog.ducom.com/tag/coronavirus)
- [DLC (1)](https://blog.ducom.com/tag/dlc)
- [Donhad (1)](https://blog.ducom.com/tag/donhad)
- [ECR (1)](https://blog.ducom.com/tag/ecr)
- [EN590 (1)](https://blog.ducom.com/tag/en590)
- [EP (1)](https://blog.ducom.com/tag/ep)
- [Element Six (1)](https://blog.ducom.com/tag/element-six)
- [Empathy (1)](https://blog.ducom.com/tag/empathy)
- [Ester Oil (1)](https://blog.ducom.com/tag/ester-oil)
- [Failure (1)](https://blog.ducom.com/tag/failure)
- [Failure Loads (1)](https://blog.ducom.com/tag/failure-loads)
- [Foaming (1)](https://blog.ducom.com/tag/foaming)
- [Focus Variation (1)](https://blog.ducom.com/tag/focus-variation)
- [Fretting (1)](https://blog.ducom.com/tag/fretting)
- [Gas Stations (1)](https://blog.ducom.com/tag/gas-stations)
- [HPM grease (1)](https://blog.ducom.com/tag/hpm-grease)
- [HVOs (1)](https://blog.ducom.com/tag/hvos)
- [Hot Strip Tribometer (1)](https://blog.ducom.com/tag/hot-strip-tribometer)
- [IP186 (1)](https://blog.ducom.com/tag/ip186)
- [ISO 14242 (1)](https://blog.ducom.com/tag/iso-14242)
- [ITeE-PIB (1)](https://blog.ducom.com/tag/itee-pib)
- [Jens Hardell (1)](https://blog.ducom.com/tag/jens-hardell)
- [LOWBRASYS (1)](https://blog.ducom.com/tag/lowbrasys)
- [Linear Reciprocation (1)](https://blog.ducom.com/tag/linear-reciprocation)
- [Liquid Droplet Erosion Tester (1)](https://blog.ducom.com/tag/liquid-droplet-erosion-tester)
- [Luleå University of Technology (1)](https://blog.ducom.com/tag/luleå-university-of-technology)
- [Metal Working Fluids (1)](https://blog.ducom.com/tag/metal-working-fluids)
- [Noise-Vibration-Harshness (1)](https://blog.ducom.com/tag/noise-vibration-harshness)
- [PDMS (1)](https://blog.ducom.com/tag/pdms)
- [POD (1)](https://blog.ducom.com/tag/pod)
- [Poland (1)](https://blog.ducom.com/tag/poland)
- [Polysulfide (1)](https://blog.ducom.com/tag/polysulfide)
- [Porous Media (1)](https://blog.ducom.com/tag/porous-media)
- [Prof. Gialanella (1)](https://blog.ducom.com/tag/prof-gialanella)
- [Prof. Straffelini (1)](https://blog.ducom.com/tag/prof-straffelini)
- [Reproducibility (1)](https://blog.ducom.com/tag/reproducibility)
- [Rolling (1)](https://blog.ducom.com/tag/rolling)
- [Rotary (1)](https://blog.ducom.com/tag/rotary)
- [Scan (1)](https://blog.ducom.com/tag/scan)
- [Solid Particle Erosion (1)](https://blog.ducom.com/tag/solid-particle-erosion)
- [Stribeck (1)](https://blog.ducom.com/tag/stribeck)
- [Surfactants in Tribology (1)](https://blog.ducom.com/tag/surfactants-in-tribology)
- [Sweden (1)](https://blog.ducom.com/tag/sweden)
- [Test standards (1)](https://blog.ducom.com/tag/test-standards)
- [Trento University (1)](https://blog.ducom.com/tag/trento-university)
- [Tungsten Disulfide (1)](https://blog.ducom.com/tag/tungsten-disulfide)
- [Ultra-low Sulphur Diesel (1)](https://blog.ducom.com/tag/ultra-low-sulphur-diesel)
- [Unitest Scratch (1)](https://blog.ducom.com/tag/unitest-scratch)
- [User Meeting (1)](https://blog.ducom.com/tag/user-meeting)
- [Water Droplet Erosion Tester (1)](https://blog.ducom.com/tag/water-droplet-erosion-tester)
- [Weld Load (1)](https://blog.ducom.com/tag/weld-load)
- [White Etching (1)](https://blog.ducom.com/tag/white-etching)
- [ZDDP (1)](https://blog.ducom.com/tag/zddp)
- [additives (1)](https://blog.ducom.com/tag/additives)
- [airborne collection (1)](https://blog.ducom.com/tag/airborne-collection)
- [airforce (1)](https://blog.ducom.com/tag/airforce)
- [carbon brake (1)](https://blog.ducom.com/tag/carbon-brake)
- [casein (1)](https://blog.ducom.com/tag/casein)
- [coal (1)](https://blog.ducom.com/tag/coal)
- [corrosion (1)](https://blog.ducom.com/tag/corrosion)
- [cryogenic (1)](https://blog.ducom.com/tag/cryogenic)
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- [harshness (1)](https://blog.ducom.com/tag/harshness)
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### Subscribe

[![](https://blog.ducom.com/hubfs/Welded%20FBT%20Balls-jpg.jpeg)](https://blog.ducom.com/setting-up-a-four-ball-extreme-pressure-ep-test-with-the-fbt-3)

[four ball tester](https://blog.ducom.com/tag/four-ball-tester)

### [Setting Up a Four-Ball Extreme Pressure (EP) Test with the FBT-3](https://blog.ducom.com/setting-up-a-four-ball-extreme-pressure-ep-test-with-the-fbt-3)

 March, 2026 |

 5 min read

[![](https://blog.ducom.com/hubfs/Oil%20swirl.jpeg)](https://blog.ducom.com/fundamentals-of-four-ball-lubricant-testing)

### [Webinar: Fundamentals of Four-Ball Lubricant Testing](https://blog.ducom.com/fundamentals-of-four-ball-lubricant-testing)

 October, 2025 |

 1 min read

[![](https://blog.ducom.com/hubfs/Four%20Ball%20Tester%20(FBT%203)%20-%20Touch%20Interface.gif)](https://blog.ducom.com/difference-wp-vs-ep)

[four ball tester](https://blog.ducom.com/tag/four-ball-tester)

### [What is the difference between Wear-Preventive (WP) and Extreme-Pressure (EP) tests for lubricants in four ball testing?](https://blog.ducom.com/difference-wp-vs-ep)

 September, 2025 |

 2 min read

[![](https://blog.ducom.com/hubfs/Airplane%20(3).jpeg)](https://blog.ducom.com/bocle-adv)

[fuel](https://blog.ducom.com/tag/fuel)

### [Next-generation BOCLE for continuous testing](https://blog.ducom.com/bocle-adv)

 September, 2025 |

 1 min read

[![](https://blog.ducom.com/hubfs/Oil%20swirl.jpeg)](https://blog.ducom.com/mtt-lubricant-expo)

[UniTest](https://blog.ducom.com/tag/unitest)

### [State of the art Modular Traction Tribometer to be showcased at Lubricant Expo Europe](https://blog.ducom.com/mtt-lubricant-expo)

 September, 2025 |

 1 min read

[![](https://blog.ducom.com/hubfs/Ducom%20Four%20Ball%20Tester%20FBT-3%20-%20Featured%20Image.png)](https://blog.ducom.com/fbt-3-user-meeting-2025)

[FBT](https://blog.ducom.com/tag/fbt)

### [Highlights from Our FBT-3 User Meeting: Innovation, Insights, and Connections](https://blog.ducom.com/fbt-3-user-meeting-2025)

 September, 2025 |

 4 min read

[![](https://blog.ducom.com/hubfs/A%20refrigerator.jpg)](https://blog.ducom.com/compressor-oils)

[wear](https://blog.ducom.com/tag/wear)

### [Reducing Compressor Wear with Low-Viscosity Lubricants: A Four Ball Tester Case Study (ASTM D5183)](https://blog.ducom.com/compressor-oils)

 June, 2025 |

 4 min read

[![](https://blog.ducom.com/hubfs/Ducom%20Four%20Ball%20Tester%20FBT-3%20-%20Featured%20Image.png)](https://blog.ducom.com/thermal-conductivity-meets-tribology)

[friction](https://blog.ducom.com/tag/friction)

### [Thermal Conductivity Meets Tribology: Evaluating Material Performance with the Four Ball Tester](https://blog.ducom.com/thermal-conductivity-meets-tribology)

 June, 2025 |

 3 min read

[![](https://blog.ducom.com/hubfs/01_BOCLE_.16_cropped.png)](https://blog.ducom.com/bocle-introduction)

[fuel](https://blog.ducom.com/tag/fuel)

### [BOCLE 2.0: Elevating Aviation Fuel Lubricity Testing Through Automation](https://blog.ducom.com/bocle-introduction)

 May, 2025 |

 3 min read

|

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 1 min read

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