Bearing NKI 25/20 INA



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Product detailed description
Bearing NKI 25/20 INA
The NKI 25/20 INA is a high-quality needle roller bearing designed to provide exceptional performance in demanding mechanical applications. Manufactured by INA, a globally recognized leader in bearing technology, this bearing is engineered for reliability, durability, and precision.
This specific bearing type, NKI 25/20, features a needle roller design that offers a compact solution for radial load support in limited space conditions. Needle roller bearings are known for their high load-carrying capacity and low sectional height, making them ideal for applications where space and weight are critical factors.
Key Features of NKI 25/20 INA
- Design: Needle roller bearing without an inner ring
- Manufacturer: INA, part of the Schaeffler Group
- Application: Suitable for automotive, industrial machinery, and other mechanical systems requiring compact and efficient radial load support
- Durability: High-quality materials and precise manufacturing ensure long service life and resistance to wear
- Performance: Reduces friction and improves operational efficiency in rotating assemblies
The NKI 25/20 INA is particularly advantageous where the shaft design does not accommodate a separate inner ring, enabling direct mounting on the shaft. This not only saves space but also simplifies assembly and reduces overall equipment weight.
While exact dimensions for the NKI 25/20 INA are not universally standardized in popular catalogs, this bearing typically corresponds to a bore diameter of 25 mm and an outer diameter close to 30 mm, with a height around 20 mm. For precise specifications, consulting INA’s official documentation or a detailed product catalog is recommended.
In summary, the NKI 25/20 INA is an excellent choice for engineers and technicians seeking a reliable, space-saving needle roller bearing solution that meets stringent quality and performance standards. Its robust construction and trusted brand heritage make it a dependable component in a wide range of applications.

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INA Bearings and Transmission Technology Manufacturer
INA is a globally recognized manufacturer specializing in high-quality bearings and transmission technology. As a key brand within the renowned Schaeffler Group, INA has established itself as a pioneer in precision components and systems for various industries worldwide.
Company History
INA was founded in 1946 in Herzogenaurach, Germany. Since its inception, the company has focused on developing innovative bearing solutions and transmission systems, contributing significantly to the advancement of mechanical engineering and automotive technology. Over the decades, INA expanded its product portfolio and global footprint, ultimately becoming an integral part of the Schaeffler Group, one of the world’s leading automotive and industrial suppliers.
Product Range
INA offers a comprehensive range of products tailored for multiple industrial sectors. Key offerings include:
- Rolling Bearings: Ball bearings, roller bearings, needle roller bearings designed for durability and precision.
- Plain Bearings: Sleeve bearings, thrust washers, and self-lubricating bearings suitable for various applications.
- Linear Technology: Linear guides, sliding units, and linear bearings for automation and machine tools.
- Transmission Components: Bushings, belt tensioners, clutches, chain adjusters, and chain guides used in automotive and industrial drive systems.
- Engine Components: Camshaft and crankshaft bearings designed to optimize engine performance and reliability.
Main Focus
INA focuses on delivering high-performance bearing and transmission solutions that enhance machine efficiency, reduce friction, and increase lifespan. Innovation, quality, and sustainability are at the core of INA’s operations, ensuring products meet rigorous industry standards and customer requirements.
Application Areas
INA’s products serve a wide array of industries, including:
- Automotive Industry: Engine components, transmission systems, and chassis bearings to improve vehicle performance.
- Industrial Machinery: Rolling mill bearings, linear guides, and heavy machinery components.
- Aerospace: Lightweight precision bearings designed for demanding aerospace applications.
- Renewable Energy: Bearings and transmission technology for wind turbines and other sustainable energy systems.
- Railway and Transportation: Robust solutions that withstand extreme conditions and continuous operation.
Company Headquarters
The headquarters of INA is located in Herzogenaurach, Germany. This strategic location serves as a central hub for research, development, and production, supporting INA’s global distribution network.