Browning SATN1 Shaft Drive Tightener

Browning SATN1 Single Adjusting Drive Tightener is a compact, surface‑mounted belt tensioner for fixed‑center V‑belt, gear belt, and roller‑chain drives. It uses a single‑adjusting mechanism to take up slack and maintain the correct center distance, helping prevent belt slip and excessive wear in power‑transmission systems. The tightener features a 0.5 in N1 shaft, a 1.5 in shaft length, a 3/8-16 stud hole, and a housing length of 3 9/32 in; bolt‑hole spacing is 0.71875 in, and the end‑of‑shaft mounting distance to the hole is 2 in. The SATN1 unit weighs about 0.56 lb and is commonly offered with a malleable iron construction, with the shaft included in the assembly. Applications include taking up slack in belt drives and roller‑chain systems where space is tight or where center distance cannot be changed readily. This specification‑driven design helps maintain transmission efficiency by reducing belt slip and vibration, while the compact form factor makes it suitable for conveyors, machine tools, and other light‑to‑medium duty drive tightener installations.