M50020416

MODEL 500 HUB 2 1/8" - Magnaloy Model 500 Hub with a 2-1/8" bore and standard 1/2" keyway is M50020416. Manufactured from lightweight, high-strength magnesium alloy, this heavy-duty flexible coupling component is roughly 76% lighter than cast iron and 36% lighter than aluminum, significantly reducing structural load on your bearings and shafts - Standard Hub: Part number M50020416, which features a 2-1/8" bore size and a standard 1/2" keyway.