Our intense and comprehensive testing regimen ensures that every part you get will deliver the long-lasting performance you depend on. So, if you're looking for the difference between Fuller parts and everyone else's, the answer is strength of character.

Genuine Parts Tests

• Gear Wear Test:  Assures the wear rate will meet or exceed gear desigjn guidelines due to a process, material or lubricant change. Gears are measured for wear after hours of testing at high torque inputs. 

• Full Load Gear Bending Test: Full rated torque test to validate the endurance against design guidelines. Comprehensively evaluates surface treatment effects. The gears are tested to failure and cycles are compared to design guidelines.

• Geometry Measurement: Continually tests manufacturing capability with regards to spacing, crown, lead and profile.  

• Hardness Test: Tests to insure the proper material and heat treat were performed from a surface hardness viewpoint only. This is a very high level judgment on whether the manufacturing process uses the proper material and heat treat process.

• Microstructure Test:Takes the surface hardness test to a finer level. This test analyzes the material grain structure and can tell with better confidence that the correct material was used in manufacturing and the capability of the heat treat process meets specifications. 

• Bearing Durability Test: Measures surface fatigue and material strength under full load conditions.   

• Accelerated Material Wear Test: Test the material's ability to live under higher than design life stresses. Running an equivalent 1,000,000 miles would literally take years.