Friction Tester

This test apparatus is designed to perform the test described in MIL-PRF-24667C. This static friction tester measures static friction by pulling a sled of a known weight across a sample material. The sleds are made of steel and the underside is covered with vulcanized rubber to the specifications of MIL-PRF-24667C paragraph 4.5.1.2.

This apparatus has a small drive that pulls the sleds across the sample material at a constant nominal speed of 12 inches per minute.  

A force gage measures the force required to pull the sleds across the sample material. It records the force overtime and inputs the data into a PC for analysis. This data is them transferred into an Excel template file were the static friction value is calculated. Several tests can be performed on the same material so that an average static friction value can be computed.    

Sled calibration can be done per the procedure described in MIL-PRF-24667C paragraph 4.5.1.4.

Tester Specifications

• ·         Sled dimensions – 5.75” X 4”

• ·         Sled Weights – 6 lbs +/_ 0.5 Lb.

• ·         Speed of pull drive – 12 inches per minute (Nominal)

• ·         Power requirement – 120 VAC

• ·         Sample table – 6” wide x 12” long.

• ·         Maximum pull force – 10 lbs.

• ·         Overall dimensions – 35” X 11” x 8” tall

• ·         Uses  Chatillon digital force gage – 50 Lb capacity

• ·         Chatillon Nexygen™ DF software is use to graph and record data from test.

• ·         Designed to be used with a standard PC.

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Screen Shot of Nexygen DF Software - Friction Tester