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This section provides an overview for backup rings as well as their applications and principles. Also, please take a look at the list of 33 backup ring manufacturers and their company rankings. Here are the top-ranked backup ring companies as of February, 2025: 1.Ningbo Savvy Rubber & Plastics Co., Ltd., 2.Kurt, 3.Seal & Design Inc..
Table of Contents
A backup ring is a vital safety device employed to enhance the security and functionality of machine components, particularly shafts or axles.
Installed at the extremity of a shaft or axle, the backup ring rotates to safeguard against the entrapment of foreign objects or tools and the dispersal of debris. These rings come in various configurations, including flat, conical, and wavy designs, allowing for versatility in different applications.
Backup rings play a crucial role across diverse industries, including manufacturing, construction, automotive maintenance, and more. In manufacturing settings, they are utilized during the production, processing, and operation of heavy machinery, while in automotive maintenance, they facilitate the safe disassembly and assembly of engines and transmissions.
The fundamental mechanism of a backup ring involves its ring-shaped structure, typically featuring a groove for secure attachment. This design effectively prevents the trapping or scattering of foreign objects or debris, thereby enhancing safety and operational efficiency.
*Including some distributors, etc.
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Kurt WorkHolding is a manufacturer of vises and CNC workholding equipment for industrial manufacturing operations established in 1946 and located in Minneapolis, Minnesota, USA. The company’s product lineup includes its MaxLock brand 5-axis vise for precision clamping in standard machining processes, and its TriLock brand 3-in-1 vises with quick-change jaws for CNC machining operations. It also offers its Pyramid brand 45-degree mounting platforms for angular cutting or machining operations, and robotic grippers for automated processes. The company is ISO 9001:2015 and AS9100D-certified, and mainly serves clients in the industrial manufacturing sector.
Performance Sealing, Inc. is a manufacturer of engineered high-pressure polymer seals, bearings, and related components, located in Irvine, CA, and founded in 1868. The product line has spring-energized PTFE seals, hydraulic seals, self-lubricating polymer bearings, and PTFE rotary seals used in the scientific instrumentation, oil & gas, industrial equipment, semiconductor, and aerospace industries. The ISO 9001-certified company offers custom seal engineering services with capabilities such as design, rapid prototyping, reverse engineering, in-house testing, and providing installation tools.
Seal & Design Inc. is a sealing products manufacturer established in Clarence, New York since 1989, and present accross the US and Canada through its three divisions. The company's product line offers items for numerous types of sealing applications, including but not limited to gaskets, o-rings, seals, molded products, die-cut foams, and more. Its products are used in the Medical, Aerospace, Electronics, Power Generation, and other industries. In addition, the venture counts with multiple standard quotas, including the C0021493-IS12, C0393417, C0034953-IS7, and C0270071-IS3 certificates.
Guangzhou Ning E-plastics Co.Ltd (GNE) is a Chinese manufacturer of industrial plastic materials that was established in TianHe, Guangzhou in 2010. The company specializes in producing plastic materials for use in engineering operations, such as high-density polyethylene (HDPE), polymethyl methacrylate (PMMA), teflon, and polyoxymethylene (POM). It also offers custom design, CNC machining and worldwide export services for customer projects. GNE operates internationally, primarily serving clients in the construction, architecture, food processing, and automotive industries.
SKF UK is the British division of SKF, originally founded in 1907 and headquartered in Gothenburg, Sweden. SKF designs, develops, and manufacturers bearings, seals, lubrication systems, and services worldwide, with industrial and automotive segments, providing solutions for industries including aerospace, agriculture, transportation, food and beverage, general machinery, material handling, mining, energy, paper, and wind energy. SKF UK offers rolling bearings, mounted bearings, automotive seals, lubrication management, vehicle aftermarket services, waste electric products, and electronic equipment products as well as services including maintenance, remanufacturing, customization, and training.
Hony Engineering Plastics Co., Ltd., established in 2008 and located in Guangdong, China, is a manufacturer of plastic and metal components. The company offers a range of products, including engineering plastics, plastic sheets, plastic rods, CNC plastic machined parts, CNC metal machined parts, and more. It also offers plastic injection molding, antistatic material, engineering plastic tubes, extrusion profiles, and plastic injection molding. Its product material formulations reduce device contamination and ensure food safety. The company has achieved ISO9001 and MSDS certification. It serves various industries such as food and beverage, medical, pharmaceutical, and semiconductor.
AFT Fluorotec was founded in 1986 in Welwyn Garden City, Hertfordshire, England, as a manufacturer, designer, and provider of precision machined components and industrial coatings. The company's product portfolio consists of wiper seals, backup rings, custom seals, RCD seals, and standard seals. It also offers surface preparation, anti-corrosion coatings, non-slip coatings, and self-lubricating coatings. The seals ensure stability in applications requiring the prevention of liquids from entering hydraulic systems, while the coatings are applied to protect metal components and enhance resistance to chemicals, corrosion, abrasion, and wear. The company serves various industries, including aerospace, automotive, construction, electronics, food, and industrial bakeware.
Bosch Rexroth’s origins date back to 1795 and is now based in Lohr am Main, Germany. Bosh Rexroth is a manufacturer of industrial and mobile equipment control and motion products and systems. Bosch Rexroth’s products are divided into 10 technology segments. First is assembly technology which includes modular components. Next are electronic drives and controls which include CNC and motion control. Industrial hydraulics and linear motion technology follow. Mobile hydraulics, electronics, and IoT include solutions for mobile machines. Gear technology includes planetary gearboxes. The final four segments are molding and casting technology, tightening technology, resistance welding, and mobile robotics.
Dechengwang is an ISO 9001, ISO 14001, and IATF 16949-certified manufacturer of polytetrafluoroethylene (PTFE) component parts established in 2006 and is based in Shenzhen, China. The company primarily produces PTFE component parts such as sheets, tubes, and rods. It also offers polyether ether ketone (PEEK) parts for chemical or mechanical force-resistant applications, as well as compression molding and CNC machining services for unique customer projects. The company mainly serves clients in the semiconductor, engineering, and medical device manufacturing sectors.
Trelleborg AB, a company founded in 1905 and headquartered in Trelleborg, Sweden, is a manufacturer that provides solutions for extreme cold, heat, pressure, or the tremendous power of nature. The company offers a wide range of products, including Cassette Seal CSL 1500, Pneumatic seals, O-rings, and more. It also has a shop called Seals-Shop that offers various products, such as Rod and Piston Seals. It provides rubber wear liners with synthetic rubber and chemical resistance. It has received the Excellence in Quality 2018 Award and Certificate of Merit from Hyster-Yale Group. It serves various industries, including Aerospace, Agriculture, and more.
Hi-Tech Seals Inc. is a manufacturer of sealing and gasket components established in 1990 and headquartered in Edmonton, Alberta, Canada. The company’s products include a wide selection of o-rings, seal kits, and gaskets. It offers products fabricated from BoKure urethane, KasPex PEEK, and RyFlor compounds. The company primarily serves clients in the oil and gas, water treatment, and aerospace sectors. It also offers custom molding services, in-house rapid prototyping, and optical measurement inspections.
Greene Tweed & Co., established in 1863 in the United States, is a global manufacturer of custom engineered materials and components for demanding applications. The company’s products, designed to withstand extreme temperatures, pressures, chemical corrosion, and mechanical wear, are used in industries such as aerospace, semiconductor, energy, defense, life sciences, and industrial operations. With over 200 engineers across North America, Europe, and Asia, it is continually researching and developing new thermoplastic plastics, composites, and custom parts. Its strength lies in its technical expertise and commercial experience, which it leverages to develop advanced solutions that optimize the performance of its customers’ equipment.
DMS SEALS TECHNOLOGY CO.,LIMITE, founded in China in 2008, is a supplier of O Ring and Hydraulic Seals. The company offers O-Rings in various materials, sizes, and configurations and hydraulic seals including piston seals, rod seals, wipers, and wear rings used for optimal performance in hydraulic systems, ensuring leak-free and efficient operation. It serves a diverse range of industries, including but not limited to automotive, aerospace, industrial manufacturing, hydraulics, and more.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Ningbo Savvy Rubber & Plastics Co., Ltd. |
25.0%
|
| 2 | Kurt |
25.0%
|
| 3 | Seal & Design Inc. |
25.0%
|
| 4 | Hony Engineering Plastics Co.,Ltd. |
12.5%
|
| 5 | AFT Fluorotec Ltd |
12.5%
|
Derivation Method
The ranking is calculated based on the click share within the backup ring page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
4 | 44.4% |
|
United States of America
|
3 | 33.3% |
|
Sweden
|
1 | 11.1% |
|
United Kingdom
|
1 | 11.1% |
61 products found - Page 2
61 products - Page 2
M-O Tech Co., Ltd.
50+ people viewing
Last viewed: 1 hour ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
100+ people viewing
Last viewed: 1 hour ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
130+ people viewing
Last viewed: 3 hours ago
KYB: IDI type U packing compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair part...
M-O Tech Co., Ltd.
90+ people viewing
Last viewed: 1 hour ago
NOK: DKBI compatible product, metal ring coating We handle a wide range of products, mainly various hydraulic seals and backup rings used as repai...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 1 hour ago
■What is Hytrel®? Hytrel is a registered trade name for polyester resin manufactured by DuPont in the United States, and is called thermoplastic po...
M-O Tech Co., Ltd.
90+ people viewing
Last viewed: 10 hours ago
Trelleborg: Step seal compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts ...
M-O Tech Co., Ltd.
100+ people viewing
Last viewed: 1 hour ago
KYB: DKBI type compatible product, long lip, high temperature resistant type We handle a wide range of products, mainly various hydraulic seals an...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 10 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
90+ people viewing
Last viewed: 1 day ago
NOK: DLI compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
100+ people viewing
Last viewed: 1 hour ago
NOK: LBH compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
70+ people viewing
Last viewed: 10 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 1 hour ago
NOK: IDI compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
90+ people viewing
NOK: LBI, Nippon Valqua: DHS compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 44 minutes ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
70+ people viewing
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
90+ people viewing
Last viewed: 1 hour ago
NOK: DKI compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 7 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
120+ people viewing
Last viewed: 1 hour ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
110+ people viewing
Last viewed: 1 hour ago
NOK: DSI compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
50+ people viewing
Last viewed: 7 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
130+ people viewing
Last viewed: 12 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
70+ people viewing
Last viewed: 1 hour ago
NOK SPGA compatible product for Caterpillar We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair par...
M-O Tech Co., Ltd.
80+ people viewing
Last viewed: 1 hour ago
NOK: DSI compatible product We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construct...
M-O Tech Co., Ltd.
110+ people viewing
Last viewed: 1 hour ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
TIMKEN
70+ people viewing
Last viewed: 5 hours ago
Oil seals are used in a variety of situations where shafts rotate and bearings require lubrication. Timken's line of O-ring seal kits are available...
M-O Tech Co., Ltd.
90+ people viewing
Last viewed: 5 hours ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
80+ people viewing
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
M-O Tech Co., Ltd.
60+ people viewing
Last viewed: 1 hour ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
Hinode Manufacturing Co., Ltd.
30+ people viewing
Last viewed: 18 hours ago
■Features The conditions for packing under high pressure and high load are extremely harsh. Hinode Seisakusho designs and manufactures backup rings...
