Tension spring, hook shape, round hook and reverse round hook.

The typical hook shapes of tension springs are reverse round hooks and round hooks.

The representative hook shapes of tension springs are the reverse round hook and the round hook. The reverse round hook is in the foreground of the photo, while the round hook is in the background. The reverse round hook is designed to be pinched at the center before being raised (indicated by the arrow), which means the spring is pulled from the center of the coil, resulting in excellent load stability. However, a disadvantage is that stress (load) concentrates at the pinched part. The round hook, on the other hand, is raised without being pinched, which helps reduce stress concentration. Additionally, based on experience, its load stability is comparable to that of the reverse round hook. (For more information about the round hook, please refer to the related links.) There are various other hook shapes as well, including U hooks, half-round hooks, and side round hooks. If you have any issues with springs, please feel free to consult us. Our technical staff will respond carefully. Tsuruga Spring Co., Ltd. Technical Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com We also support web conferencing.

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