(Marposs: Auburn Hills, MI) -- Marposs, a leader in measurement, inspection, and test technologies, has announced its NVH Gear Tester for identifying potential gear defects at the component level prior to gear box assembly. The NVH gear tester, which works on the single-flank testing principle of one master gear meshing with the component under inspection, is able to detect macro-geometry (e.g., nicks, runout) and micro-geometry (gear-mesh excitation, ghost orders) defects that cause gear whine and noise phenomena.

With electrification of the automotive industry, many hybrid electric vehicle (HEV) and full electric vehicle (EV) drivetrains are facing challenges such as increased NVH requirements in high-speed e-Drives. And, although the number of gear wheels is significantly reduced in electric vehicles due to the use of one- or two-speed reducers instead of the classic manual, automatic, or twin-clutch gearboxes, these gear wheels are loaded with torque and rpm not previously found in high-volume production.

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