Description
The TE 91 Precision Rotary Vacuum Tribometer is based on a bench mounted test chamber. A motor driven test spindle, in the form of standard rotary feedthrough, projects downwards into the chamber and carries tooling for mounting rotating test samples. A servo motor with encoder feedback provides a variable speed turn-down ratio of 100:1.
The various fixed specimen test adapters can be mounted on a mandrel projecting through the bottom of the chamber and coaxial with test spindle.
The mandrel is sealed to the chamber by means of a flexible stainless-steel bellows. The non-chamber end of the mandrel is attached to a cross beam, which is guided by linear bearings on the vertical machine columns. The beam is loaded from underneath by a pneumatic bellows actuator assembly which includes an in-line force transducer for measurement of the load applied outside the chamber.
Technical Specifications
Tribometer
Load: 20 to 2000 N
Rotational Speed: 10 to 1700 rpm
Maximum Friction Torque: 5 Nm
Load Actuation: Pneumatic Bellows
Test Configurations: Four ball wear (ASTM D2266)
Thrust washer (ASTM D3702)
Three pin on disc (ASTM G99)
Spiral orbit ball on disc (ASTM F2661)
Motor Type: Servo with encoder feedback
Roughing Pump: Rotary vane pump
Vacuum Pump: Turbomolecular
Interface: Serial Link Interface Module
Software: COMPEND 2000
Test Chamber
Vacuum: Down to 100 Picobar (10-5 Pa)
Environment: Air, inert gas or vacuum
Material: 304 stainless steel
Surface Treatment: Glass bead blasted
Viewports: Fused Silica
Electrical Feedthrough: 1 kVolts , 15 Ampere
Coaxial Feedthrough: BNC through Flange
Thermocouple: Type K through Flange
Vacuum Transducer: Cold Cathode and Pirani
Leak rate: < 10-7 mbar l/s
Rotary Feedthrough: Pressure up to 10-7 Pa
Rotary Feedthrough: Temperature up to 80ºC
Computer Controlled Parameters Rotational Speed
Test Duration Load
