Custom Micro Spur Gear Motor Used in Automated Door Locks

A highly reliable spur gear motor that we customized to meet our customer’s requirements. We were able to customize a standard spur gear motor to avoid expensive tooling.

12mm Micro Spur Gear Motor for Door Lock
Man entering code in keypad to unlock security door

Overview

We were asked to provide a high performance, highly reliable version of a common model spur gear motor that would also comply with international security standards within an automated locking system.

Challenge

Our customer came to us with an existing spur gear motor that only lasted 1,500 – 2,000 cycles in their application. Since these motors would be used in high security lock systems, they needed to have an ultra-high reliability spur gear motor with a 50,000 cycle life. In addition to the motor’s reliability, it also had to conform to newly-tightened international security standards.  Another issue was, once the end product was in the field, it would be very costly to field-service and replace these gear motors.

Solution

In a joint effort with our factory, ISL made modifications to the spur gear motor to meet the customer’s goal of 50,000 cycles. Among some of the innovations, we changed gear material from brass to a high-reliable stainless steel alloy in order to achieve long life and improved dependability.

After further testing, the ISL custom version exceeded 90K cycles before testing was halted. We were also able to do this without any NRE charges.

Conclusion

ISL transformed a spur gear motor rated for only 1,500 to 2,000 cycles into a rugged component that exceeded 90,000 cycles in testing, far surpassing the customer's original 50,000 cycle target. By switching the gear material to a high reliability stainless steel alloy, ISL met the tightened international security standards required for automated door locking systems while helping the customer avoid costly field service and replacement. This upgrade was delivered with no NRE charges, giving the customer a proven, long life motor solution at no additional development cost. The project shows how ISL can re-engineer standard components into high reliability parts for demanding security applications.

Components designed to your specifications

At ISL Products, we streamline the transition from initial design to final production. Provide us with your component specifications, performance targets, and any environmental constraints. We will analyze your requirements and provide a detailed quote and technical roadmap to help you hit your production deadlines without compromising on quality.

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  • Direct collaboration to optimize your component’s design and manufacturability.
  • Tailored performance to meet your exact mechanical and environmental needs.
  • Seamless transition from initial prototyping to high-volume production runs.
  • Precision-tested components to ensure long-term reliability and performance.