Produced to ANSI specification, Drives® Heavy Series chains are offered in two main styles: HR Series and HZ Series. Both lead the industry in manufacturing processes and are critical to performance in demanding markets. This being said, it is important to know how they differ so you can choose the correct series for your application.
- HR Series: Contains a case-hardened pin and heavier sidebars for increased fatigue strength and wear life in high speed or abrasive applications.
- HZ Series: Contains a through-hardened pin and heavier sidebars for high load or pulsating applications.