This section provides an overview for spherical bearings as well as their applications and principles. Also, please take a look at the list of 49 spherical bearing manufacturers and their company rankings. Here are the top-ranked spherical bearing companies as of September, 2024: 1.AST Bearings, 2.Triangle Manufacturing Company, 3.RJ Watson, Inc..
Table of Contents
Spherical bearings are bearings in which the inner and outer rings are in spherical contact.
They are mainly used for oscillating, tilting, and low-speed rotational motion. Spherical bearings are spherical and can support large radial loads and axial loads in both directions at the same time.
There are two main types: lubricating type, which requires lubrication of the spherical surface of the sliding portion in contact with the bearing, and non-lubricating type, which does not. They excel in wear resistance and are used in joints of industrial and construction machinery and other locations where large loads are applied.
The lubrication-free type is maintenance-free and is best suited for applications where oil is not required, such as in food processing machinery, or parts of machinery that cannot be lubricated.
Oilless spherical bearings have excellent resistance to wear and are capable of carrying large loads. Examples of applications include industrial machinery and construction equipment.
Oilless spherical bearings have low creep deformation when supporting compressed loads and have excellent resistance to wear. In addition, they do not require lubrication and do not require maintenance.
Oilless spherical bearings are suitable for supporting axial loads in one direction and are used in areas where oil is used, such as in food products, and in locations where lubrication maintenance is difficult.
Spherical bearings are generally made of high-carbon chromium bearing steel for both the inner and outer rings, and the sliding surfaces are treated with a phosphate coating. In addition, many are covered with a dry coating of molybdenum disulfide. These bearings operate at low torque and have a large load capacity with excellent wear resistance.
The sliding portion between the inner and outer rings is characterized by spherical contact and the absence of the grooves necessary to incorporate the inner ring, which allows for a large load capacity and can be used where impact or alternating loads are applied. If the sliding surfaces where the inner ring and outer ring contact each other are poorly lubricated, heat generation and other problems can occur.
An example of an oilless spherical bearing is a combination of a special PTFE liner reinforced with copper alloy adhered to the sliding surface of the outer ring and hard chrome plating on the sliding surface of the inner ring. High lubricity is added to the sliding surface itself.
Even without lubrication, large loads can be supported by applying a process such as adhering to a material with excellent resistance to wear.
When using spherical bearings, the housing in which the spherical bearing is mounted and the shaft that is inserted into the spherical bearing are dimensionally toleranced according to the application. Care must also be taken to ensure that the housing has sufficient wall thickness to prevent deformation due to load.
When mounting in a housing, only the outer ring should be pushed in so that no force is applied to the inner ring. It is also important to push only the inner ring into the shaft as well so that no force is applied to the outer ring. Poor mounting may result in uneven loading due to deformation of the bearing, resulting in shortened service life and rattling.
There are four different conditions of use when determining the dimensional tolerances of the housing and shaft of a spherical bearing: inner ring rotating load, outer ring rotating load, normal load, and heavy load.
Dimensional Tolerances for Oilless Type
For the inner ring rotating load, the recommended tolerance for the shaft under normal load is k6, and for heavy load is m6. For both housings, H7 is recommended for steel and J7 for light alloys.
For the outer ring rotating load, the dimensional tolerance of the shaft is h6 for both normal and heavy loads, and the housing is k7 for steel and m7 for light alloy for normal loads; for heavy loads, m7 for steel and no light alloy is specified.
Dimensional Tolerance for Oil-Filled Type
There are slight differences in dimensional tolerances for oil-feeding types, so it is necessary to check the manufacturer's technical data before determining dimensional tolerances.
Spherical bearings are used in a wide range of applications, with the most common use being in large equipment. In the use of shaft couplings, a shaft is connected with a coupling having two spherical bearings. This allows the eccentricity and misalignment of the two shafts to be absorbed.
An example of use in heavy construction equipment such as power shovels is the rod ends of hydraulic cylinders used in each joint. Other applications include coupling parts of cranes and suspension parts of trucks, which are often used under heavy loads with vibration and shock.
*Including some distributors, etc.
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RJ Watson, founded near Buffalo, New York, is a manufacturer and supplier specializing in custom structural solutions for the construction industry. The company’s products include bridge and structural bearings, expansion joint systems and bridge deck waterproofing. It specializes in engineering, fabricating, and manufacturing of bearings, joints and structural devices. The company delivers a diverse and custom range of products and services to customers worldwide and provides cost-effective raw materials resulting in competitive pricing.
SDP/SI, founded in 1950 and headquartered in New York, USA, is a manufacturer of mechanical components. The company provides mechanical components, engineering and manufacturing services for industrial and commercial applications. Its product portfolio consists of over 80,000 products, such as precision gears, bearings and couplings in various metals and alloys. It also provides custom solutions for motion control and small power transmission. The company is compliant with the RoHS and REACH standard, and has obtained AS9100D quality management certification.
Triangle Manufacturing Company, established in 1922, based in Oshkosh, Wisconsin, manufactures stamped and fabricated motion components and assemblies to meet the needs of equipment manufacturers. The company’s product portfolio includes bearings, linkages, rod ends, Lazy Susan turntable bearings, and motor mounts. Their team of engineers help design the products from quoting to prototyping and manufacturing to on-time delivery. The company’s services provided will assist customers in creating ideal solutions to improve products and increase efficiency.
Aurora Bearing Co. is a Montgomery, Illinois-based manufacturer of mechanical bearings founded in 1971. The company produces various bearing configurations for clients in the automotive, aerospace and defense, construction, mining, and agriculture industries. The company specializes in manufacturing spherical bearings designed to accommodate oscillating movements, rod end bearings engineered to connect and maintain alignment throughout motion transfer processes, and journal bushings used to reduce friction, wear and tear under rotating shafts. Aurora Bearing Co. is certified to ISO 9001:2015 as well as AS9100:2016 standards and offers custom design and prototyping services to customers with demanding specifications.
Carl Hirschmann, founded in 1957, with Head Quarter in Fluorn-Winzeln, Germany, is a manufacturer of spherical bearings, rotary tables, clamping systems, axial shaft seals, and synthetic fluid and these products have applications in Medical Engineering, the Aerospace industry, and Automotive/Racing Sports. The company produces Aluminium-Titanium lightweight bearings, Ultralight Tie Rods, and rolled-in-spherical bearings which have applications in Mould &Tool manufacturing, and the Turbine industry. They also provide Rotary indexing tables in single-axis/two-axis/multiple-axis models. They offer indexing/rotating spindle, and hollow axes besides they produce synthetic fluid in two forms namely dielectric fluid and grinding fluid that are used in the automobile sector.
AST Bearings LLC was founded in 1963, in New Jersey as a manufacturer of ball bearings. The company stocks an extensive inventory of miniature bearings and precision ball bearings that help in reducing rotational friction and support radial and axial loads. There are also linear, cylindrical, and spherical bearings where aligning of movements between shaft and housing is required. There are also other products such as bushings, rod ends, rollers, sub-assemblies, and much more. The applications of these items extend to aerospace, medical, robotics, food processing, green energy, and many other industries
Action Bearing was founded in 1965 and headquartered in Boston, Massachusetts. The company and its sister company Emerson Bearing are manufacturers and servicers of ball and roller bearings for OEM and maintenance markets throughout the United States as well as the international markets. The company distributes bearings and other products from companies such as Timken Drives, Nachi, NTN, Alinabal, and Bando. The company also provides bearing modifications including grooving, re-lubrication, and internal clearance.
Lubrite Technologies, founded in 1897 and headquartered in Hanover, Massachusetts, is a custom manufacturer self-lubricating components. The company specializes in producing bushings, washers, expansion plates, as well as bearings which are used to support medium to heavy loads operating at slow to medium speeds in a several applications, such as bridges, hydroelectric facilities, nuclear facilities, offshore drilling equipment and many more. It also extends to an array of complementary offerings, encompassing couplings, coupling adapters, and bearing housings.
McNeil Industries was founded in 1986 and is based in Painesville, Ohio. The ISO 9001-certified company is a manufacturer of seals, bearings, and other components for industries such as aerospace and firearms. The company’s three primary product lines are MAXM Bearings, Firearms, and Guide Systems. MAXAM Bearings are engineered to operate in harsh environments reaching 1000 degrees F, immersion in water, acids, and other corrosive environments. Firearms category includes weapons components such as guides, rails, barrels, sleeves, and safety locks. Guide Systems are designed with CAD software, and can be made from reverse-engineered products or developed as OEM products.
Regal Rexnord Corporation, established in October 2021 as a combination company of Regal and Rexnord, is a manufacturer and service provider of motors and conversion systems. Its parent companies have over 125 years of industry experience, with its products powering HVAC systems, smart buildings, agricultural and food service equipment, and conveyor systems. As a producer of motors and related components, Regal Rexnord supports various industries such as healthcare, food and beverage, and pharmaceutical production. Their global presence spans over 220 sites, and their product range and services include AC/DC drives, bearings, blowers, conveyor technologies, and predictive maintenance solutions.
Specialty Components, incorporated in 1980 in Connecticut, is a manufacturer of precision products for the optics and air bearings. The company specializes in the design and production of high-precision air bearings, offering a range of options including porous carbon and discrete inlet (orifice) types for use in critical sectors such as semiconductor and aerospace industries which require speed, repeatability, stiffness, and minimal friction as well as various geometries such as linear, spherical, and cylindrical shapes which can be provided as complex multilevel assemblies or individual components.
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.
Royerford Foundry & Machine Co., Inc., established in 1890 and based in Phoenixville, Pennsylvania, is a manufacturer specializing in precision power transmission products and machine tools. Its comprehensive product portfolio encompasses various vital components catering to diverse applications, which includes a range of bearings, such as pillow blocks and flange bearings, essential for industrial machinery and automotive engines. The company also produces couplings, from flexible to rigid, facilitating seamless power transmission between shafts. Further offerings include safety set collars for shaft security and arbor presses pivotal in machining operations across industries like aerospace and automotive.
Hartford Technologies was founded in 1926 in Hartford, Connecticut and is currently headquartered in the suburbs of Hartford in Rocky Hill. The ISO 9001 certified company is a manufacturer of custom bearings and assembly solutions for the automotive, agriculture, medical, and other industries. The company has four primary product categories: Custom Bearings & Components, Precision Balls, Bearing Parts, and Precision Pins, Shafts, and Rollers. The company’s manufacturing and service capabilities include prototype development, 3D modeling, technical support including inventor management, and quality control systems.
Roller Bearings Incorporated was founded in 1919 and is headquartered in Oxford, Connecticut. RBC manufactures and markets precision bearings and related components globally, mainly to the aerospace, agricultural, automotive, industrial, and semiconductor manufacturing sectors. The company’s products are primarily divided into two market segments: aerospace and industrial. Both segments include basic components such as airframe control ball bearings, needle track rollers, ball bearing rod ends, and thin-section ball bearings. The Aerospace Segment also includes special machine components while the Industrial Segment also includes heavy-duty needles roller bearings and self-lubricating bearings subsegments.
The Jensen Machine Co. (JMC) is an American contract manufacturer specializing in Babbitt soft metal alloy bearings and related products that was established in 1946. Based in Newington, Connecticut, the company offers various capabilities including general and CNC machining, as well as legacy conversion of obsolete components using CAD/CAM or reverse engineering. It produces various Babitt bearings such as elliptical or self-equalizing models, along with labyrinth seals according to customer designs and specifications. JMC primarily serves clients in the power generation, petrochemical, aerospace, and industrial machinery sectors.
The Timken Company (Timken) was founded in 1899 and is headquartered in North Canton, Ohio. Timken designs, manufactures, and manages engineered bearings and industrial motion products worldwide. Timken operates in two segments, Mobile Industries and Process Industries. The Mobile Industries segment’s portfolio includes bearings, seals, and lubrication devices and systems. The Process Industries segment provides industrial bearings and assemblies; industrial motion components, such as gears and gearboxes; and linear motion products, couplings, seals, lubricants, chains, belts, and related products and services to OEMs and end users in various industries.
Tiodize Company, Inc has been a manufacturer of coatings and composites based in California since 1966. The company deals in various forms of coatings as their product such as Dry Film Lubricants, Aluminum and Titanium anodizing, and Anti-Seize Greases, and provides services for their application as well. They also manufacture fasteners and fastening devices made of composite materials having high tensile strength, lighter weight, and can be processed into various shapes and sizes. Industries that require the application of lubricants for corrosion and friction resistance benefit from Tiodize's products and services, such as automotive, electronics, marine, and aerospace.
Scheerer Bearing Corporation is an American industrial bearing manufacturer founded in 1963 and headquartered in Willow Grove, Pennsylvania. The company produces ball bearings, cylindrical, spherical, and tapered roller bearings, slewing ring bearings, and thrust bearings along with other industrial motion products in the forms of bearing sleeves, hubs, plain bearings, and fittings which it supplies to distributors and OEMs globally. Additionally, they offer customization and modifications, such as coatings and lubricants, and reconditioning, and repair services. The company primarily serves military, mining, metal, material handling, and energy production industries.
Bearings Industrial Supply Company, Inc (BIS) was founded in 1982 in Addison, Illinois. The company is a supplier and distributor of bearings, seals, belts, power transmission parts, and a variety of other industrial supplies to small and large customers such as Boeing and Toyota. The company isources from manufactureres such as Emerson, KOYO, Tsubaki, NTN, and Timken. The company's offerings include numerous types of bearings, many varieties of seals, several different belts, AC and DC motors, and power transmission components.
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.
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.
Baker Bearing Company is a distributor of bearings based in Oregon since 1991. The company stocks various items from different manufacturing brands to further supply to its customers. The product listing includes flange units, pillow blocks, split housings, cam followers, and bearing seals. However, they excel in distributing popular as well as hard-to-find balls and bearings such as tapered roller, radial ball, cylindrical roller, spherical roller, and self-aligning ball bearings. There are also Angular contact ball bearings, needle roller bearings, and linear ball bearings and the industries served by Baker Bearing include agriculture, oilfields, industrial, automotive, and trucking
Accent Bearings Co. Inc. was established in 1993 and is a distributor for industrial bearings. Accent Bearings offers a full range of bearing-related parts including ball, cylindrical, radial, thrust, and standard, as well as CAM followers, rod ends, belts, sheaves, busings, bronze busings, bar stock, pulleys, chains, sprockets, gears, speed reducers, motors, clutches, brakes, couplings, shafts, shaft accessories, oil seals, gauges, retaining rings, air cylindeers, conveyor belts, and fluid power process control equipment.
Emerson Bearing is based in Boston, Massachusetts and serves both domestic and international customers of industries ranging from mining to machine tools to power generation to wood products to wastewater treatment to robotics and more with bearings and casters. Emerson Bearing’s product list includes adhesives, sealants, ball bearing, roller bearing, mounted nut bearings, linear motion bearings, rod ends, belts, sheaves, chains, sprockets, couplings, clutches, brakes, locknuts, washers, lubricants, pullers, tools, retaining rings, seals, and shaft collars.
NEI Ltd., formed in 1946 and located in Jaipur, India, is a manufacturer of various types of bearings and the like. The company provides the market with ball bearings, cylinder roller bearings, and needle roller bearings. It also crafts railway bearings, spherical roller bearings, taper roller bearings, and special products. A ball bearing uses balls to maintain separation between its moving parts and serves the purpose of reducing rotational friction while supporting both radial and axial loads.
SYZ MACHINE, founded in 2012 and headquartered in Shanghai, China, is a manufacturer of suspension components for aircrafts, automobile, boats, industrial machines and many others. The company's range of suspension components include ball joints, suspension arms, linkage suspension, various rod ends and related products like spherical balls and bearings, jam nuts and rebuildable flex joints. The company also offers custom parts and custom machining services like CNC machining, stamping, bending, welding and laser cutting based on a product sample or a drawing. The company's infrastructure facility includes R&D, engineering and prototyping as well as shock assembly, dynamometer testing and pull testing facility.
CCTY Bearing Company, founded in 1996, and headquartered in Zhenjiang, China, is a manufacturer of bearings and assemblies. Its comprehensive range includes ball joints, spherical plain bearings, rod ends, mast guide bearings, as well as metallic & self-lubricating bushings, providing smooth movement, stability, and reduced friction in mechanical systems for efficient functioning and performance of equipment across different sectors such as agriculture, automotive, construction, mining, and transportation. Notably, their quality management systems hold ISO 9001 and TS certification.
MinebeaMitsumi Inc. was incorporated in 1951in Japan and manufactures and supplies machined components, and electronic devices and components globally. It operates through four segments: machined components, electronic devices and components, MITSUMI Business, and the U-Shin business segment. MinebeaMitsumi specializes in bearing products including spherical, roller, rod end, and ball bearings for aerospace. MinebeaMitsumi also produces products including precision mechanical assemblies, fasteners, other special components including clutches and brakes, motors, blowers, sensors and lighting devices. Additionally, MinebeaMitsumi offers its products for use in PCs and peripheral equipment, information and telecommunications equipment, household electrical appliances, automobiles, and aerospace.
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.
igus GmbH, established in 1964 and based in Cologne, Germany, is a manufacturer and distributor of technical products made using polymers for movement. Its products include injection molding frames, motor control systems, and plain bearings, and it has over 240,000 products in over 1,000,000 variations. It serves 188,000 companies from over 80 countries worldwide in 50 different industries, including packaging, automotive, and renewable energy. The company is ISO 9001, ISO 14001, and ISO 50001 certified, and in 2023, it recorded €1.115 billion in sales. Since 2021, the company has purchased 380 new injection-molding machines and has replaced 275 old ones.
NTN Bearings began in 1918 in Kuwana, Mie, Japan, and is now headquartered in Osaka. The company is a manufacturer of bearings, velocity joints, and precision equipment, as well as a maintenance and service provider. The company serves the aerospace, automotive, construction, wind energy, and infrastructure industries. The company operates via BCA Bearings, Bower Heavy Duty Bearings, and NTN SNR brand of velocity joints, linear modules, distribution rollers, and suspension parts. Other components the company manufactures include linear motion, flanged discs, and condition monitoring equipment.
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.
WD Bearings, founded in 1999, is a manufacturer of bearings, including cylindrical rollers, spherical & tapered rollers, deep grove balls, angular contact balls, and combination bearings used in pump & compressors, gearbox, and machinery in the agricultural, construction, electric motor, and material handling industries. The Indianapolis, Indiana, company is ISO 9001, ISO 14001, and IATF 16949 certified and provides services like flexible manufacturing, product validation, customized solutions, limitless design modifications, and low MOQ capabilities.
GGB, Inc. is a manufacturer of metal-polymer plain carriage founded in 1989 and established in England. The company offers thermoplastic materials, fiber-reinforced plastic composite materials, solid polymer, housings and assemblies, and special materials. GGB serves clients worldwide.They also cater to various industries which include aerospace, automotive, and industrial applications The company takes dignity in its customer-centric approach, fostering long-lasting partnerships and are driven by excellence and aim to be at the forefront of technological advancements to ensure a brighter and more hopeful future.
American Roller bearing Company is headquartered in Hickory, North Carolina and is a manufacturer of heavy duty industrial class bearings that are used in various industries in the US and around the world. The company’s capabilities include maximum manufacturing diameters of 84 inches for ball bearings, cylindrical, spherical, custom, and tapered roller bearings in both radial and thrust configurations. The company’s service capabilities include bearing modification, service engineering, employee training, bearing repair & reconditioning, and engineering design services.
THB Bearings Co.Ltd, a company established in 2009, based in Shanghai, China, is a manufacturer and supplier of various types of bearings and related products. The company provides various products such as wire wound resistors, metal glaze film resistors, oxide film resistors, water cooled resistors, and ribbon wound resistors. These products are designed to be durable, energy efficient, and engineered to save money. A specialized solutions provider of bearing technology and it is an industrial technical services company that offers customers a simple and convenient source for bearing components, technical services and solutions.
P.T. International, also known as PTI, was founded in 1994 and is headquartered in Charlotte, North Carolina. PTI is a distributor of European metric and American standard industrial power transmission products, serving the food/beverage, wood products, steel, automotive, and other industries. PTI’s 3 product segments are bearings, power transmission components, and linear products. PTI also offers value-added services including bearing forensics, private branding & custom labeling, custom projects, and new product designing. PTI is ISO 9001 certified.
Jamieson Equipment Company (JEC) was founded in 1982 and located in the state of Georgia. JEC serves infrastructure-related industries including pavement with concrete, aggregate, and asphalt, chemicals, sewage and waste management, and agriculture and food. JEC sells, installs, retrofits, repairs, and offers training and troubleshooting for a range of components and tools from simple fittings to motion sensors to electronics to valves to actuators, cranes, mixers, silos, hoppers, and plants.
MiMotion was founded in 1946 in Birmingham, Alabama and today operates under Genuine Parts Company. The company operates as a distributor and supplier of custom parts for both maintenance repair and operating replacement part market and the OEM market. The company’s product line includes many types of products including abrasives, chemicals & lubricants, hand & power tools, hose & fittings, and process pumps & equipment. The company also provides maintenance repair and operating replacement parts as well as OEM parts ensuring compatibility with existing customer operations.
Ritbearing is a wholesale distributor and supplier of a full range of ball and roller bearing products based in the United States since 1946. Ritbearing offers various types of ball and bearings including plastic and stainless steel bearings, and cylindrical roller bearings. The company has an extensive bearing partner network which enables them to offer custom bearing solutions to meet individual needs. They can design and deliver custom-engineered bearings for specialty applications without requiring high-volume order quantities.
Bearing Distributors and Bearing Distributors & Drives have been family owned and operated since 1953 and are headquartered in Columbia, South Carolina. Bearing Distributors is a distributor of bearings, power transmission components, electric motors, and other parts from companies such as ABB, Bondhus, and American Pulley. The company has additional product segments including Industrial HVAC, Material Handling, Power Transmission Equipment, and Tools. The company offers services including branch inventory, plant surveys, vendor-managed inventory, onsite factory training, and repair services.
OTC Industrial Technologies, formerly known as OTP Industrial Solutions, was founded in 1963 and headquartered in Columbus, Ohio. OTC is and industrial distributor for automation machinery for industrial customers in industries such as steel production, paper, agriculture, process & manufacturing, and water treatment, across northern and northeastern United States. OTC’s product line includes individual parts such as bushings for power transmission or roller bearings, machines such as pumps and ovens, and systems including air filtration systems. OTC offers custom engineered solutions, engineered pump systems, rental options, and services and repair capabilities across the United States.
BDI Exppress was established in 1935 and is headquartered in Cleveland, Ohio. BDI develops and deploys custom distribution and supply chain solutions for customers across Asia, Europe, and North America. BDI serves multiple industries including automotive, primary metal, food processing, public utilities, pulp and paper, mining, material handling, bearings, mechanical power transmission, electrical power transmission and motion control, linear motion, pneumatic and hydraulic fluid power, industrial, safety, and material handling.
Ranking as of September 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | AST Bearings |
10.5%
|
2 | Triangle Manufacturing Company |
7.9%
|
3 | Regal Rexnord Corporation |
7.9%
|
4 | RJ Watson, Inc. |
6.6%
|
5 | Aurora Bearing Co. |
6.6%
|
6 | Carl Hirschmann |
5.3%
|
7 | Scheerer Bearing Corporation |
3.9%
|
8 | ABB E-mobility |
3.9%
|
9 | P.T. International |
3.9%
|
10 | Maedler North America |
3.9%
|
Derivation Method
The ranking is calculated based on the click share within the spherical bearing page as of September 2024. 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 (%) |
---|---|---|
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25 | 71.4% |
![]() |
6 | 17.1% |
![]() |
1 | 2.9% |
![]() |
1 | 2.9% |
![]() |
1 | 2.9% |
![]() |
1 | 2.9% |