Four Ball Tester

Four Ball Tester

Features

Determines the Wear Preventative (WP) and Extreme Pressure (EP) characteristics of lubricating oils and greases in sliding steel-on-steel applications. The test consists of rotating a steel ball under load against three stationary steel balls coated with lubricant. Measurements are taken at the rotating speeds, temperatures, and duration as specified by published standards. The load-wear index can be calculated from the weld point in EP tests, and lubricant comparisons can be made based upon scar diameters incurred from wear tests.

  • Conforms to the specifications of: ASTM D2266, D2596, D2783, D4172, D5183*, IP 239
  • Drive Motor: 1.5 kW
  • Test Speeds: 1200, 1440, 1760 rpm
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Overview

"Conforms to ASTM D2266, D2596, IP 239, and related specifications Performs Wear Preventative (WP) and Extreme Pressure (EP) tests Displays and records normal load, frictional torque, time, and temperature Test speeds and temperatures are electronically controlled Data Acquisition Software and Card are included Custom configurations are available Precise variable loading capability"

Technical Information

Optional Test Speeds (min/max): 1000/3000, 300/3000 rpm Maximum Axial Load: 10000 N at 3000 rpm or 12000 N at 1800 rpm Test Duration (min/max): 1/9999 min Test Ball diameter: 12.7 mm

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