For over 60 years Vibrac has designed and manufactured a broad range of automated and manual precision torque testing systems, cap torque testing systems, and device torque testing systems. Existing clients include NASA, Coca Cola, Pepsi, Boeing, NGK, Pfizer, GSK and many more. 

Bearing inspector 

Vibrac’s Bearing Inspector is specifically designed for measuring the torque characteristics of anti-friction bearings and bearing assemblies. The system includes a customised computer, monitor and keyboard, as well as specialised controls for performing tests and processing 
results. In addition, the user-friendly menus allow operators to quickly master Vibrac’s high-precision system.

Testing capabilities

Both starting torque and running torque can be measured with the same system, the same tooling and in the same test cycle. 

Testing identifies a variety of bearing problems, such as:

• Bearing contamination
• Retainer hang-up
• Brinelled or pitted raceways
• Poor geometry
• Structural defects
• Reporting options

Customised reports can be generated to display customer- or application-specific information.

Bearing test systems

Vibrac’s Bearing Inspector system consists of a state-of-the-art computer and a standard or high load bearing test head. The test head contains a Vibrac torque transducer, a magnetic high-resolution encoder and a variable speed drive. The system rotates the bearing at a constant speed of 0.5 rpm to 
10 rpm while measuring both torque and position.

Tooling for inch series bearings

Instrument series bearings are normally tested with a dead weight load that is provided by the weight of the outer race tooling. Instrument bearings with an outer diameter (OD) of less than 0.375” or 9.5mm are tested with a 75 g load and 
OD greater than 0.375” or 9.5mm are 
tested with a 400 g load.

Bearings requiring a heavy load can be tested using the BRG heavy load gauge which applies the axial load with a dead weight system that is actuated with a lever. The weight is mounted under the table and applies the load by pulling down on the inner or outer race tool.