grand slip ring

In a world of ever-evolving advanced technologies, slip rings play a vital role in various industries. As a key component in transmitting power and electrical signals from a stationary unit to a rotating body, slip rings are trusted for their efficiency and durability. With the growing demand for these indispensable components, it is imperative that businesses and people are well-informed about the leading manufacturers.

This article delves into the top 10 slip ring manufacturers in the USA market in 2023 and provides a guide covering key information on slip ring application, maintenance, and selection tips to help make an informed choice.

For more detailed information about slip ring Manufacturers, please check Top 10 Slip Ring Industry Key Manufacturers 2023 and Top 10 Slip Ring Manufacturers in China.

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What Is a Slip Ring?

A slip ring is a rotating connector that transmits power or electrical signals from a stationary unit to a rotating body. Power and signals are transferred through a metal ring that is placed on the rotating body and a brush on the fixed side.

Top 10 Slip Ring Manufacturers in the USA Market in 2023

3U.S. Tsubaki
4United Equipment Accessories, Inc.
5Cobham plc
6Meridian Laboratory
7Electro-Miniatures Corporation
9Grand Rapids Controls LLC
10Rotary Systems Inc.



Moog is a prominent American-based manufacturer that has gained acclaim for its high-quality slip rings. The company caters to numerous sectors, offering a vast range of slip ring solutions tailored to meet various unique needs. Backed by their commitment to research and development, Moog continuously innovates to produce industry-standard slip rings that stand up to the demands of diverse systems and applications.


Mercotac slip ring

Mercotac is another notable manufacturer renowned for its durable and precision slip rings. The company, based in California, USA, offers a variety of rotating electrical connectors. Mercotac’s slip rings are especially recognized for their excellent performance in high-speed applications. Their cutting-edge manufacturing process and commitment to quality control make their products a popular choice in many industries.

U.S. Tsubaki

U.S. Tsubaki

U.S. Tsubaki, a subsidiary of Tsubakimoto Chain Co., specializes in the design and production of motion and control products. They offer a wide range of slip rings, including heavy-duty, high-frequency, high-voltage, and customized slip rings. Their electrical slip rings are designed for high performance and durability in industries such as automotive, packaging, and material handling, providing reliable electrical current and signal transmission.

United Equipment Accessories, Inc.

United Equipment Accessories, Inc.

United Equipment Accessories (UEA), Inc. focuses on custom slip rings, hydraulic swivels, cable reels, and shift controls. They manufacture a broad array of slip rings such as through-bore, miniature, multi-channel, and high-speed slip rings, tailored to specific industry needs. UEA’s slip rings are designed to excel in robustness, durability, and quality performance and are used in wind energy, construction equipment, and industrial machinery applications.

Cobham plc

Cobham plc

Cobham plc serves the defense, aerospace, and space sectors. They offer diverse slip ring assemblies, including multi-channel, high-density, high-frequency, and high-voltage slip rings. Their assemblies are capable of handling a wide range of electrical needs, facilitating data, power, and signal transmission. Cobham’s slip rings are designed to meet the rigorous standards in industries such as military, aerospace, and satellite communications.

Meridian Laboratory

Meridian Laboratory

Meridian Laboratory has over 50 years of experience in developing high-performance electrical slip rings and rotary electrical contacts. They offer an extensive ROTOCON product line, featuring maintenance-free, low electrical noise slip rings. Meridian Laboratory produces various slip ring types, including high-speed, high-frequency, multi-channel, and harsh environment slip rings. Their slip rings are utilized in the semiconductor industry, medical equipment, and rotary indexing tables.

Electro-Miniatures Corporation

Electro-Miniatures Corporation

Electro-Miniatures Corporation designs and manufactures high-performance slip rings for demanding military and commercial applications. Their product range includes through-bore, capsule, pancake, multi-channel, and high-speed slip rings. These slip rings display exceptional robustness, precision, and enduring performance and are extensively used in radar systems, robotics, military vehicles, and various industrial applications.



Stemmann-Technik, a global innovator in slip ring technology, offers various custom slip ring solutions, including through-bore, high current, high voltage, and explosion-proof slip rings. Their slip rings cater to a wide range of industries, including automotive, cranes, renewable energy, and entertainment. Stemmann-Technik’s slip rings are customized to meet their clients’ specific requirements and provide seamless power, signal, and data transmission.

Grand Rapids Controls LLC

Grand Rapid Controls LLC

Grand Rapid Controls (GRC) focuses on high-quality custom slip ring assemblies for diverse industries. They manufacture a wide range of slip rings, such as through-bore, pancake, multi-channel, and high-speed slip rings. GRC is known for engineering excellence, design support, and customer service. Their slip rings cater to applications in military, industrial machinery, automotive, and wind energy sectors.

Rotary Systems Inc.

Rotary Systems Inc.

Rotary Systems Inc. specializes in designing and manufacturing custom and standard rotary unions and slip rings. They provide various slip ring options, including through-bore, pancake, multi-channel, high-speed, and hybrid electrical slip rings. Their precision engineering, quality manufacturing, and responsive customer service have made them a go-to choice for industries such as oil and gas, packaging, and material handling applications.

Other Information on Slip Rings

How to Inspect Slip Ring Manufacturers?

When inspecting slip ring manufacturers, it’s crucial to take into account a variety of factors beginning with industry experience – understanding how long the company has been in operation and its reputation within the market. Next, critically assess the quality of their products by examining their slip ring durability, performance, and customer reviews. Don’t overlook the importance of efficient technical support, which can ensure any issues are promptly resolved, and make sure that they have responsive customer service as this provides reassurance that the manufacturer prioritizes client satisfaction.

Factors to Be Considered When Selecting a Slip Ring

Selecting a slip ring requires careful consideration of several aspects. Firstly, discern the type and size of the slip ring you need, which should align with the nature of your project or machine. Another important factor is the current and voltage capacity, which should match your system requirements. Take into account the maximum speed at which the slip ring can operate effectively, and don’t forget to consider the environment (hot, cold, dusty, moist, etc.) in which the slip ring will be used as it must be capable of withstanding such conditions.

Advantages of Slip Rings

Slip rings come with a host of benefits. They enable stable power and signal transmission, ensuring consistent performance. They are versatile and can be customized to fit an array of applications, making them suitable for use in various types of rotating equipment. Their design can also accommodate systems requiring power and signal transmission simultaneously, rendering them a practical solution for complex setups.

Application of Slip Ring

Slip rings find numerous applications across various industries. They are essential in wind power generators, where they enable the transfer of electrical power from the rotating wind turbine to the stationary grid. Machine tools, centrifuges, agitators, and robot arms also use slip rings for efficient power transfer. Slip rings are also integral in cranes, surveillance cameras, helicopters, turntables, drum heaters, radar antennas, and a myriad of other rotary machines and motors.

Maintenance Skills of Slip Rings

Effective maintenance of slip rings significantly prolongs their lifespan. Routine cleaning of the brushes and sliding surfaces can prevent dust accumulation and maintain good conductivity. Regular lubrication of the brushes with a conductive lubricant can reduce wear and improve performance. Ensure any worn-out parts are replaced promptly to prevent system failure.

Installation Tips for Slip Rings

In order to enjoy optimum performance, slip rings should be installed according to the manufacturer’s instructions. Provide adequate clearance for the slip ring to prevent friction with other parts. Always establish a good connection with the terminal connections to prevent power loss. Ensure that the brushes are resting properly on the rotating ring for proper contact.

Precautions for Slip Rings

Slip rings, although designed for long-term use, still need precautions to keep them functioning properly. Their brushes can wear over time, which may lead to contact failure. Therefore, it’s recommended that you clean and lubricate them once every few years. Moreover, avoid any inappropriate handling that could cause physical damage to the slip rings.

Frequently Asked Questions about Slip Rings

Q: What is a slip ring?

A: A slip ring is a rotating electrical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.

Q: What are some common applications of slip rings?

A: Slip rings are commonly used in wind-powered generators, cranes, radar antennas, helicopters, and many types of rotating machinery.

Q: Who are the top manufacturers of slip rings?

A: Top manufacturers include Hangzhou Grand Technology Co., Ltd, Schleifring, Moog, Mercotac, and BGB.

Q: How are slip rings maintained?

A: Proper maintenance of slip rings involves regular cleaning of the brushes and sliding surfaces, lubricating the brushes with a conductive lubricant, and replacing worn-out parts timely.

Q: What factors should be considered when selecting a slip ring?

A: Considerations should include assessing the type and size, current and voltage capacity, maximum speed, and the environment in which the slip ring will be used.

Q: What are the advantages of using slip rings?

A: Slip rings enable stable and efficient power and signal transmission, have versatility in application, and can suit many types of rotating machinery.

Q: How can I ensure the proper installation of a slip ring?

A: Follow manufacturer instructions, allow adequate clearance, establish proper connections, and ensure that brushes are resting correctly on the rotating ring for optimal performance.

Q: How do slip rings work?

A: Slip rings work by creating an electrical connection through brushes that touch a rotating metal ring. As the ring turns, the electrical current or signal gets transmitted to the rotating structure.

Q: Can slip rings transfer data?

A: Yes, slip rings can transfer both analog and digital signals along with power.

Q: Is there a difference between a slip ring and a rotary joint?

A: While they are often used interchangeably, a distinction can be made in terms of application. Slip rings are generally used for electrical signal and power transmission, while rotary joints are used for fluid media transfer in rotating machinery. Some advanced designs can handle both tasks simultaneously.

Q: What are the key components of a slip ring?

A: A slip ring consists of several essential components, including brushes, contact rings, a rotating structure (the rotor), and a stationary structure (the stator).

Q: Can I use slip rings in harsh environments?

A: Yes, slip rings are designed to function in various environments. However, you need to choose a slip ring with appropriate sealing, insulation, and temperature resistance properties according to your specific application.

Q: What is the lifespan of a slip ring?

A: The lifespan of a slip ring depends on its quality, application, and maintenance. With proper care and timely replacement of worn-out parts, slip rings can function for several years.

Q: How do I know which slip ring to choose?

A: Understand your application requirements and consult technical datasheets or the manufacturer’s experts to choose an appropriate slip ring based on size, current and voltage capacity, speed, and environmental conditions.

Q: Are slip rings customizable?

A: Yes, many manufacturers can provide customized slip rings to suit unique application needs and requirements.

Q: What is the difference between a brushed and brushless slip ring?

A: A brushed slip ring uses physical brushes to provide contact with the rotating surface. In contrast, a brushless slip ring does not have physical contact, using magnetic, capacitive, or optical technologies to transfer signals and power.

Q: What types of signals can slip rings transmit?

A: Slip rings can transmit a variety of signals including power signals, analog and digital data signals, as well as video and audio signals.

Q: Do slip rings generate noise when transmitting signals?

A: While slip rings generate some noise during operation, this noise is usually minimal and acceptable for most use cases. A careful selection of materials and design can reduce noise generation.

Q: How can I extend the life of my slip ring?

A: Follow recommended maintenance guidelines: clean brushes and sliding surfaces regularly, lubricate brushes with conductive lubricant, and replace worn parts as needed.