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Hearing Aid and Micro-Precision Rubber Parts


Types of Hearing Aids

Hearing aids come in a wide variety of shapes, sizes, and models. Rubber materials are used to help improve the performance of hearing aids and hearing aid buds. Various applications include rubber hearing aid suspensions to dampen vibration and rubber in-ear components to provide comfort. This guide consists of information to assist you in understanding the basic styles of hearing aid devices, such as hearing aid tubing and other essential components.

For information on our micro-precision rubber parts, including help selecting the best rubber material for your specific application, contact us today.

Hearing aids today can be grouped into the following categories:

Behind-the-Ear (BTE) - These hearing aids sit behind your ear and are connected to an ear mold placed inside your ear via silicone tubing. BTE devices are fastened on the ear with an ear hook and the ear molds are custom-made to fit the user's ear. BTE hearing aids are known for being robust and durable. They have the ability to produce a lot of power, which accommodates all types of hearing loss.

In the Ear (ITE) - These hearing aids are placed in the ear of the wearer. They are often used by those who suffer moderate hearing loss. Some people who have extremely small ears may not find these models suitable.

In the Canal (ITC) and Completely in the Canal (CIC) - With ITCs and CICs, the whole hearing aid is placed inside the ear canal. ITCs are often larger than CIC devices. CICs are extremely tiny in size and are almost invisible. Some people due to their canal shape or size are unable to wear these types of hearing aids.

Performance and Comfort of Our Hearing Aid Parts

The usage of rubber in hearing aids, hearing aid tubing and hearing aid buds is critical to both the performance and the comfort of the device.

  • Acoustics – Rubber hearing aid suspensions perform acoustic damping and sound isolation. Damping prevents sound from escaping and isolation allows for greater clarity and elimination of ambient noise.
  • Comfort – In the ear rubber such as silicone provides for maximum comfort. Ear buds, tubing and domes that sit in the ear must be firm enough to maintain device position but soft enough to provide a comfortable feel for long wear.

Hearing Aid Parts, Hearing Aid Buds and Materials

Common materials used in various hearing aid components include:

  • Silicone: rubber ear buds, tubing, domes
  • Q-flex, FKM, and fluorosilicone: rubber sound tubes, elbows
  • Q-flex, FKM, fluorosilicone, butyl, and chloroprene: rubber hearing aid suspensions, receivers, boots

This is a small sampling of the parts we make and the materials that we use for hearing aid applications. Contact us to learn more about the range of possibilities available. The only limit is your imagination.


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