Water Washout Tester

Water Washout Tester

Test Method

A grease sample is packed in a ball bearing and subjected to a steady water stream under controlled test conditions. The percentage of grease washed out in a one-hour period is determined by weight.


Conforms to ASTM D1264, D4950 and related specifications


Rotates a lubricated ASTM ball bearing at 600rpm in a modified bearing/housing assembly while impinging the bearing with a jet of water at the specified flow rate and temperature. The tared bearing and bearing shields are weighed before installation in the bearing housing and again after testing and drying to determine the amount of sample loss. Consists of reservoir, bearing housing, circulation system and drive motor. The reservoir is equipped with cartridge heater, thermoregulator and thermometer port for accurate temperature control at 100?F and 175?F (38?C and 79?C) per ASTM specifications. The circulation system includes constant velocity carbon bearing gear pump, valves and flowmeter directing a controlled water flow to a capillary (1mm) spray nozzle aimed at the bearing housing. The rugged 1/3hp drive motor rotates test bearing at 600rpm while driving the circulation pump. A two-pulley system permits independent pump operation to circulate water while heating it to test temperature. Mounted on a finished steel base with locating feet for permanent benchtop placement.

Included Accessories
  • Graduated Cylinder, 50 mL
  • Test Bearing

  • Conforms to the specifications of: ASTM D1264, D4950; IP 215; FTM 791-3252
    Drive Motor: 1/3hp 1725rpm
  • Temperature Control: ?1?F (?0.5?C) sensitivity

Electrical Requirments
  • 115V 60Hz, Single Phase,10.1A
  • 220-240V 50Hz, Single Phase, 5.1A
  • 220-240V 60Hz, Single Phase, 5.1A

  • lxwxh,in.(cm): 18x12x183/4 (46x3Ox48)
  • Net Weight: 65 lbs (29.5 kg)

Shipping Information
  • lxwxh,in.(cm): 18x12x183/4 (46x3Ox48)
  • Net Weight: 65 lbs (29.5 kg)

Additional Accessories
  • 289-001-006 Test Bearing
  • K19201-RPM-CAL-KIT Motor Speed Calibration Kit
  • K19201-T-CAL-KIT Temperature Calibration Kit
  • 250-000-15F ASTM 15F Thermometer, Range: 30 to 180?F
  • 250-000-15C ASTM 15C Thermometer, Range: ?2 to +80?C

Video Resources

    K19201 EN