TENSION ASSEMBLY for Hobart – Part# 00-873500. The Hobart 00-873500 Tension Assembly is the replacement spring for Hobart meat grinders. It can also be used as a replacement part on most brands of grinders. The Hobart 00-873500 tension assembly is made of heavy duty stainless steel and has all of the style that you need. The Hobart 00-873500 tension assembly is used for most HBL-20, 25 and 30 series welders manufactured before June 2007. The Hobart TL 150-400-750 COLD TENSION ASSEMBLY _ALSO KNOWN AS_ 00 87 35 00 is designed to hold the drum and drive assembly together for all models in the Hobart Series 300 & 400. It set on top of the axis assembly. Made to exacting Hobart specifications. 3 7/8″ tall x 2 1/16″ Componet Number and Description: 00-873500 01 Internal spacer. 1 for each assembly. 02 External Mounting Plate, Chrome Plated, For (1) Sheave Only. 03 Internal Sheave Spacer and Nylon Band. 04 Internal Pinch Roller with retaining spring and rubber. 06 Internal Clutch Sheave. Get the best possible results when working with glass, porcelain, plastics, wood and many other materials. The Ultimate Series Tension Assembly for Hobart ® Glastar & Unicoring cutter grinders provides the ideal tension needed for producing a high-quality, smooth finish on all types of materials.