Bearing NKIA 5911 INA



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Product detailed description
Bearing NKIA 5911 INA: High-Quality and Reliable Performance
The bearing NKIA 5911 INA is a premium spherical plain bearing designed to meet the demanding requirements of various industrial applications. Manufactured by INA, a leading brand known for precision and durability, this bearing offers exceptional performance in heavy-duty and high-load environments. Its robust construction ensures long service life and reliable operation, making it an ideal choice for machinery that requires smooth rotational or oscillating movements.
Designed to accommodate radial and axial loads in both directions, the NKIA 5911 INA spherical plain bearing features an inner ring with a spherical convex outer surface and an outer ring with a correspondingly spherical but concave inner surface. This design allows the bearing to compensate for misalignment and shaft deflections, enhancing operational stability and reducing maintenance needs.
Key Features and Benefits
- Durability: Constructed from high-grade steel with optimized heat treatment processes to resist wear and corrosion.
- Self-lubricating capabilities: Often equipped with a maintenance-free sliding contact surface, reducing the need for additional lubrication.
- Versatile load handling: Supports heavy radial and axial loads, suitable for complex motion systems.
- Misalignment accommodation: Spherical design allows for angular movement, protecting the bearing and associated components from excessive stress.
- Wide application range: Commonly used in construction machinery, agricultural equipment, and industrial automation.
Technical Specifications
While the exact dimensions of the NKIA 5911 INA bearing are standardized by INA, typical specifications include:
- Inner diameter (d): 55 mm
- Outer diameter (D): 90 mm
- Width (B): 30 mm
These dimensions make the NKIA 5911 INA suitable for medium to large-scale machinery requiring reliable spherical plain bearings. For precise engineering applications, always refer to the manufacturer’s datasheet or catalog to confirm exact measurements and tolerances.
Applications of NKIA 5911 INA Bearing
The NKIA 5911 INA bearing is widely used across various industries due to its strength and adaptability. Typical applications include:
- Construction equipment such as excavators and cranes
- Agricultural machinery including tractors and harvesters
- Industrial automation systems with oscillating joints
- Material handling equipment and conveyors
- Hydraulic cylinders and steering systems
Choosing the NKIA 5911 INA bearing ensures enhanced mechanical reliability and performance in challenging operational conditions. Its proven track record and engineered precision make it a top choice for professionals seeking dependable bearing solutions.

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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.