This Axial Anti-Vibration Ring (Part #440036) is a specialized component for your Pfeiffer vacuum pump. Its job is to reduce vibrations that travel along the shaft, or in the “axial” direction. Think of it like a cushion or a shock absorber. It protects the pump’s bearings and other internal parts from damaging shocks and vibrations. This leads to smoother operation, less noise, and a longer pump life. This ring is often used alongside a radial anti-vibration ring for complete vibration protection
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