This section provides an overview for stainless steel bearings as well as their applications and principles. Also, please take a look at the list of 32 stainless steel bearing manufacturers and their company rankings.
Table of Contents
A stainless steel bearing is a bearing that is fabricated of stainless steel. Stainless steel has excellent corrosion resistance, so it is used in food processing plants and areas with high temperature and humidity.
Environments where the corrosion resistance of stainless steel can be utilized include underwater, humid environments, food processing plants, high temperature environments, and acid/alkali environments. The following are applications for stainless steel bearings.
Due to its corrosion resistance, the product is used in submerged and humid environments. Examples of applications include submersible pumps and cleaning equipment.
The corrosion resistance of stainless steel prevents foreign matter from adhering to it, thus maintaining a clean appearance. Food grade grease may be used for lubrication since it may come into contact with foodstuffs or products. Examples of use include food conveying equipment.
Stainless steel bearings specialized for atmospheric corrosion are used in high-temperature environments. Examples of use include the inside of metal baking furnaces.
Due to their resistance to corrosion, stainless steel bearings can be used for acidic and alkaline gas-liquid chemical transfers. Examples of applications include chemical equipment and plating equipment.
Stainless steel bearings are characterized by the use of stainless steel. Stainless steel is defined by international standards as "an alloy steel" containing not less than 10.5% chromium and 1.2% carbon, respectively, with iron as the main component. It has excellent corrosion resistance and can be used in corrosive environments.
Some products are treated with ceramic or fluoroplastic depending on the intended use. By changing the materials used and adding processing, bearings are marketed to suit the application and environment in which they are used.
The performance of stainless steel bearings varies depending on the type of stainless steel used. Stainless steel is assigned the symbol SUS.
Typical stainless steels used as materials are listed below.
SUS304 is an austenitic stainless steel made by adding chromium and nickel to iron, and has high corrosion resistance and heat resistance. Because it contains chromium and nickel, its specific gravity and density are high, and because it is not magnetic, it does not adhere to magnets. It is a stainless steel material that is readily available in large quantities, although it is moderately priced.
SUS404C is a martensitic stainless steel made by adding chromium and carbon to iron. It has the highest hardness among stainless steels due to quenching and tempering, and is used when high strength is required. Its corrosion resistance is lower than other stainless steels.
SUS630 is a precipitation hardening stainless steel whose strength is strengthened by adding copper. It is difficult to use in places where magnetism is generated due to its magnetic properties. it is classified into H900, H1025, H1075, and H1150 in JIS standard, and the lower the number, the harder it is.
Bearings are "parts that help things rotate." While supporting a rotating object, they play a role in reducing friction and creating smooth rotation.
Therefore, if they rust, not only can they not fulfill their intended role, but they can also cause mechanical failures due to sticking and deterioration. Therefore, bearings must be selected to withstand the operating environment. Stainless steel bearings are more expensive than steel or plastic bearings, but they have superior corrosion and heat resistance.
*Including some distributors, etc.
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ABB E-mobility provides electric vehicle charging solutions for customers around the globe. ABB E-mobility offers DC fast chargers as well as AC chargers with focus on reliability and uptime. Since 2010, ABB E-mobility has sold over 50,000 DC fast chargers and over 1 million total AC chargers. ABB E-mobility offers home single and multi-charge units, retail, workplace, and hospitality charge units, electric vehicle fleet sales, as well as public transportation. Additionally, numerous digital solutions and software services are available.
J.W. Winco was originally founded as Ganter in 1894 in Germany. Winco specializes in parts manufacturing. Parts offerings the operating parts segment including handles, adjusting, and positioning parts; clamping parts segment featuring tensioning, clamping, switching, and levers; and finally the machine parts segment with indexing, locking, mounting, connecting elements, guides, spindles, rollers, magnets, casters, and wheels. Winco’s complete catalog contains over 75,000 standard parts. Winco is also ISO 9001 certified. Winco offers free CAD downloads and technical documentation for many arts.
Mädler North America was founded in 2020 as the US-based subsidiary of Mädler which was founded in Berlin, Germany in 1882. Mädler specializes in manufacturing precision-made machine parts. Product lines include linear guides, bearings, bushes, bevel gears, worm wheels, castors and wheel systems, couplings, fastening elements, clutches, gear boxes, idlers, linear bearings, locking assemblies, machine mounts, elements for pneumatic machines various joints, rubber padding and dampers, splined shafts and hubs, sprockets, timing belts, spindles, adhesives, sealants, and other assorted accessories.
Cook-Leitch Inc. was incorporated in 1964 and serves as a distributor for engineered components and metal finishing solutions. Cook-Leitch serves a number of industries including home & commercial appliances, aerospace & defense, automotive, agriculture, fluid power & hydraulics, distribution, and heavy truck & construction equipment. Some of Cook-Leitch’s product categories include powdered metal featuring Eastern Sintered Alloys, screw machine/complex shafts featuring Precision Capital LTD, springs/wire forms/stampings featuring Wire products company, split seam tubes featuring Baker Stamping, fasteners featuring Vasco Inc, and metal finishing featuring Decal Metal Finishing, Hale Performance Coatings, and Whitaker Finishing.
Doran Specialties is based in Yorba Linda, California and is a distributor of a variety of fastening hardware and tools. Doran Specialties is 9001:2015 certified. Product categories include AN, MS, NAS, and BAC-certified fasteners including bolts, nuts, fittings, washers, rivets, screws, inserts, and pins. Doran Specialties’s other products include retaining rings, bushings, rods, cables, lanyards, captive screws and nuts, clams, connectors, semiconductors, fuses, keys, machine screws, set screws, spacers and standoffs, springs, wire forms, stampings, switches, washers, and wire. Additional aircraft-specific hardware include hook and loop fasteners, nylon fasteners, O-rings, and plugs.
Paramount Fasteners was founded in 1988 and is based in Santa Fe Springs, California. Paramount Fasteners supplies both common and rare industry standard nuts, bolts, screws, and other fastener products. Materials that Paramount Fasteners uses include B16, B8, B8M, B16, B7, 16-4, 17-7, Inconel, Hasteloy, and Monel and provided in 300 series stainless steel, 316 stainless steel, brass, bronze, carbon steel, nylon, and plastic. Paramount Fasters also distributes parts that have painted heads, hot dip galvanized, zinc plated, cad plated, black oxided, chrome plated, and flour coated.
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.
Ranking as of March 2023 in United States of AmericaDerivation Method
|1||KMS Bearings, Inc.||25%|
|2||Specialty Components, Inc.||25%|
|4||TOK America, Inc.||25%|
Ranking as of March 2023 GloballyDerivation Method
|1||KMS Bearings, Inc.||25%|
|2||Specialty Components, Inc.||25%|
|4||TOK America, Inc.||25%|
Derivation MethodThe ranking is calculated based on the click share within the stainless steel bearing page as of March 2023. 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.
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