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This section provides an overview for crossed roller bearings as well as their applications and principles. Also, please take a look at the list of 19 crossed roller bearing manufacturers and their company rankings. Here are the top-ranked crossed roller bearing companies as of December, 2024: 1.Luoyang Huigong Bearing Technology Co., Ltd., 2.Accent Bearings Co., Inc., 3.Bearings & Industrial Supply Co., Inc..
Table of Contents
A crossed roller bearing is a bearing in which the rollers are arranged orthogonally between the inner and outer rings.
Cylindrical rollers are arranged orthogonally and alternately at an angle of 90°, supporting loads from all directions simultaneously while maintaining high rotational accuracy. The crossed roller bearing is characterized by its high rigidity; in many cases, only one roller bearing is needed, whereas two average roller bearings are used.
Crossed roller bearings are used in robots and other components for various applications because of their high rigidity and space-saving capability. The following are applications of cross-roller bearings, taking advantage of their respective characteristics.
Applications that take advantage of high rigidity include industrial and industrial robots. Specifically, welding robots that combine a variety of movements. It may also be used in the swiveling parts of machine tools.
Applications that take advantage of the characteristics of compactness and precision include humanoid robots that require lightweight, joint parts of robot suits for agricultural work, nursing care, and logistics, and measuring and medical equipment that require precision. Other applications include IC manufacturing equipment, which requires compact and precise movements.
Other applications include cutting-edge fields in the aerospace industry.
Unlike standard bearings, which have balls or rollers between the inner and outer rings, crossed roller bearings use cylindrical rollers arranged at 90° angles in alternating directions. This structure allows the bearing to support loads in a variety of directions. It can also support larger loads due to the increased contact surface area.
The principle is illustrated by using crossed roller bearings on a rotating table. To increase the moment rigidity of the table, two bearings are installed as far apart as possible to increase the distance between the points of action in the case of a standard bearing. On the other hand, if crossed roller bearings are used, it is possible to obtain very compact and high rigidity because of its sizeable stand-alone working point distance.
A high-precision rotating mechanism requires attention to the bearing and the machining accuracy of the mounting parts and the assembly method.
Rigidity of mounting parts
In designing the housing and the push flange of crossed roller bearings, the rigidity of the parts, as well as the size and number of tightening bolts for the push flange, must be considered. Insufficient strength can cause deformation of the bearing or uneven roller contact inside, leading to premature failure or worsening rotational accuracy.
Housing Design
The housing should be designed so that the wall thickness is at least 60% of the bearing cross-sectional height. Also, if a threaded hole called a "pull-out tap" is machined for dismounting the bearing, the bearing can be dismounted without putting a load on it, preventing bearing damage during dismounting.
Design of push flange
The wall thickness of the push flange should be designed to be 50 to 120% of the bearing thickness, and the clearance between the flange and housing should be about 0.5 mm. Iron is the recommended material for the push flange.
Tightening Bolts
The bearing outer diameter dimensions determine the size and number of fastening bolts. For example, for bearings with outer diameters of 100 to 200 mm, the flange fastening bolts should be M4 to M8 in size, with a minimum of 12 bolts.
When installing the push flange, the order in which the bolts are tightened is also essential. To tighten the bearing evenly, tighten the diagonal screws little by little and assemble the bearing so that the tightening is even.
Crossed roller bearings can be pressurized similarly to standard ball bearings. However, since the rotational friction increases, it is necessary to calculate the rotational force.
Pressurization is usually applied by setting the radial clearance to a negative value. The recommended dimensional tolerance of the housing and shaft for mounting a pressurized bearing is g5/H7, and the fit should be set to avoid a tight fit. If the fit is tight, the internal stress will be high due to over pressurization, which may lead to bearing failure.
*Including some distributors, etc.
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Schaeffler Group USA Inc. (SGUS) is an American manufacturer and supplier of automotive products and solutions established in 1946 as the North American subsidiary of the Shaeffler Group, which operates globally. Based in Fort Mill, South Carolina, the company manufactures standard engine, transmission and chassis products such as torsion dampers, valve train systems, and camshaft phasing units. They also produce aftermarket repair solutions like clutch and release systems, as well as various industrial bearings and linear motion systems. SGUS primarily supplies the automotive sector, as well as the industrial operations of various industries including rail, green energy, and aerospace.
Hiwin Technologies Corp. was established in 1989 in Taichung, Taiwan, with subsidiaries across Asia, Europe, and the United States. The company is the first linear motion and motion control product manufacturer in the world to attain ISO-9001 and ISO-14001 certification and serves industries such as medical laboratories, packaging, metal fabrication, and general automation. The company uses CAD technology to design products such as linear guideways, ball screws & supports, torque motors, and industrial robotics machines.
TPA Motion was started in 2002 and based in Fort Mill, South Carolina. TPA Motion is now part of the Acuvi AB group of companies. Acuvi is a Swedish Technology company focusing on developing compact drive solutions for life science, medical, and industrial applications. TPA Motion is an ISO 9001:2015 certified manufacturer and distributor of motion and precision assemblies. TPA Motion has 2 main product segments, component products and engineered OEM solutions. Component products include rails, actuators, bearings, guides, and assemblies. Engineered OEM solutions include microplate robots, curved rail systems, special telescopic slides, and high temperature systems.
Isotech was founded in 182 and is headquartered in Hatfield, Pennsylvania. Isotech is a manufacturer’s representative and distributor of proprietary mechanical and electromechanical products to the industrial, medical, and military OEM and in-plant markets. Some of Isotech’s products include linear slide assemblies & rail sets, shock/vibration mounts & pads, linear bushings & shafting, telescoping lifting columns, positioning stages, air bearings, gas springs/air cylinders, motorized positioning tables, laser marking cutting systems, foamed aluminum/metal/composites, stamped metal, noise control products, and belt driven actuators.
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.
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.
SF Technology CO., LTD, founded in 2010 and headquartered in Tainan City, Taiwan, is a manufacturer of precision motion components and motion control products. The company specializes in manufacturing optimal-precision linear stages, rotary stages, and motion control systems designed to deliver robust accuracy and stability in various applications. The products are utilized for their precision, repeatability, and robust construction, making them ideal for industries such as semiconductor manufacturing, biotechnology, aerospace, and photonics. These components and solutions enable customers to achieve precise and controlled movement in their equipment and processes. It operates globally under SFT brand, and is ISO9001:2005 certified.
CPM S.p.A is an Italian specialized medium- as well as high-series bearings manufacturer that was established in 1967 and is located in Nova Milanese, Lombardy. The company’s product lineup includes roller and needle bearings for high-speed or high load applications, as well as standard ball bearings for use in robotics, automation, and power transmission. It also offers precision rings for performance applications, along with custom design, engineering, and manufacturing services for unique projects. The company chiefly serves its clients in Italy’s robotics and automation, hydraulic motors, and power transmission sectors.
Franke GmbH, established in 1936, is a manufacturer of wire race bearings and linear systems based in Aalen,Germany. The company's products include rolling bearings, slewing rings, thin section bearings and linear guides. Its bearings provide linear solutions for industries like packaging, mechanical engineering, medical technology, aerospace and intralogistics. It is ISO 9001:2015 certified and has 28 agencies worldwide that provide customer service. The company uses sustainable production methods like heat recovery and photovoltaics to reduce heating energy and generate environment-friendly electricity.
THK Co., Ltd. was incorporated in 1946 and is headquartered in Tokyo, Japan. THK is a manufacturer and supplier of machine components such as linear motion components for customers globally. THK’s products are used in many industries including electronics, aerospace, industrial robots, and precision instruments. THK’s primary product categories are Linear Motion, Feed Screw, Rotation, Custom Assemblies, and Seismic Isolation. Linear Motion products assist in linear motion and transportation. They include linear motion actuators, guides, and rollers. Feed screws include ball screws, screw nuts, and change nuts. Seismic Isolation includes both large systems and small guides.
Luoyang Huigong Bearing Technology Co., Ltd. is a manufacturer of bearings and bearing components. Established in 1998, the company is headquartered in Luoyang, Henan, China. The company's main activities involve designing and producing multiple types of bearings and bearing components. Its product range includes Thin-section bearings, Tapered roller bearings, Cylindrical roller bearings, Slewing bearings and Ball bearings. The company provide solutions for industrial robots, wind turbine, metallurgy, mining, and medical device industries. Luoyang Huigong Bearing offers services like customized bearing solutions and technical assistance.
GMT Global Inc. was founded in Taiwan in 1994. GMT initially started as a manufacturer and seller of precision mold components. In 2008, GMT expanded to optimize manufacturing procedures and improve machining technologies, so they developed automation components. The products offered by GMT are Ball Screws and Supports, Feeding Screws, Couplings, Slide Tables, Cross Roller Bearings, Automation, and Precision/Alignment Stages, Optical and Linear Motion Components, Motors, and Drives. These products are used in semiconductors and in the smartphone industry. GMT Global is CE and ISO 9001-2015 Certified.
IKO International was established in 1950 and is headquartered in Himeji, Japan. As a certified ISO 9001:2015, the company is a manufacturer of needle bearings, linear motion rolling guides, and precision positioning tables. Its products are used in a wide variety of applications, including industrial machinery, robotics, and medical equipment. The company's product range includes needle bearings, linear motion rolling guides, and precision positioning tables and are used in some of the world's advanced machines. IKO International has over 6,000 employees and operates in more than 50 countries.
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.
Nippon Thompson Co., Ltd. - IKO is based in Japan and was established in 1950 as a manufacturer of bearings. The company designs Linear Motion Rolling guides and Mechatronics series and they were the first to produce Needle Roller Bearings. These products have vast applications in various industries as they are used in Electronics-related Devices and Equipment like semiconductors and for precision devices that are used in laboratory measuring instruments and medical equipment. Textile, printing, construction, transportation, and robotics are also on the list of industries that benefit from IKO products.
Quality Bearings Online, established in 2012, is a supplier of precision bearings, engineering spares, and lubricants headquartered in Leeds, West Yorkshire, England. Its production is segmented into spherical plains, adhesive & lubricants, ball & roller bearings, housing & inserts, and maintenance tools such as lubrication analysis, hydraulic, alignment, heating, and mechanical tools. The company offers products from various brands including Protorque, Hoffman, Timken, Renold, and Pollard used in various sectors such as food manufacturing, aerospace, oil & gas, and precision engineering.
GSF Promount, the e-commerce branch of Sliding Systems and a part of the GSF Group of Companies established in 1988 is a distributor of sliding systems headquartered in Chirk, Wrexham, United Kingdom. It offers telescopic slides, drawer slides, and linear rails used for sliding, transferring, and withdrawing loads of a few kilos up to 4,000kg. All its product ranges are supported by quality systems, including ISO 9001:2008 & 2015, IATF 16949 and ISO 14001.
Accelerated Parts is a supplier of fasteners, motion control components, robotics, and tools, established in 2003. They offer a wide selection of fasteners, including bolts, nuts, and screws. In addition, they provide motion control components such as actuators, ball screws, ball splines, and bearings. Furthermore, Accelerated Parts offers a comprehensive range of robotic parts, including end-effector kits, sensors, gearboxes, tool changers, and wheels. Their products support the performance, functionality, and efficiency of various applications in industries ranging from manufacturing and automation to robotics.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Luoyang Huigong Bearing Technology Co., Ltd. |
14.8%
|
| 2 | Accent Bearings Co., Inc. |
14.8%
|
| 3 | Bearings & Industrial Supply Co., Inc. |
11.1%
|
| 4 | TPA Motion, LLC |
11.1%
|
| 5 | CPM S.p.A |
7.4%
|
| 6 | Franke GmbH |
7.4%
|
| 7 | Accelerated Parts |
7.4%
|
| 8 | SF Technology CO., LTD |
3.7%
|
| 9 | THB Bearings Co.Ltd |
3.7%
|
| 10 | Schaeffler Group USA Inc. |
3.7%
|
Derivation Method
The ranking is calculated based on the click share within the crossed roller bearing page as of December 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 (%) |
|---|---|---|
|
United States of America
|
7 | 41.2% |
|
Taiwan
|
2 | 11.8% |
|
Japan
|
2 | 11.8% |
|
China
|
2 | 11.8% |
|
United Kingdom
|
2 | 11.8% |
|
Italy
|
1 | 5.9% |
|
Germany
|
1 | 5.9% |
42 products found
42 products
Sunk Japan Co., Ltd.
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Compact slider Linear modules that do not generate play due to optimized length, empty pressure drive, Preload Cross Roller bearing Advantages and...
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Advantages and benefits ■ Cross roller guide type and solid type Guarantee the high bearing load capacity and the accuracy of the stop position reg...
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Japan Laser Co., Ltd.
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■Features ・Super stable, submicron performance ・Thermally compatible crossed roller bearings ・Vacuum compatible up to 10-6 Torr
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■Features ・Super stable, submicron performance ・Thermally compatible crossed roller bearings ・Vacuum compatible up to 10-6 Torr
TOAMEC Co., Ltd.
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5.0 Company Review
SFT is a manufacturer that researches, develops, designs, and manufactures precision cross roller bearings in-house. With stable quality and on-tim...
Japan Laser Co., Ltd.
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Last viewed: 52 minutes ago
Standard Response
■Features ・Super stable, submicron performance ・Thermally compatible crossed roller bearings ・Vacuum compatible up to 10-6 Torr
Japan Laser Co., Ltd.
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Japan Laser Co., Ltd.
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Japan Laser Co., Ltd.
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Japan Laser Co., Ltd.
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■Features ・Submicron accuracy: Precise optical alignment possible ・Made of stainless steel: high stability and durability ・Cross roller bearing ...
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Japan Laser Co., Ltd.
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Japan Laser Co., Ltd.
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60+ people viewing
Last viewed: 1 hour ago
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140+ people viewing
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■Cross roller ring Cross Roller Rings have cylindrical rollers arranged orthogonally on the 90° V-groove raceway through spacer retainers, so one b...
