Bearing NJ 2315 C4 FY KOYO



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Product detailed description
Bearing NJ 2315 C4 FY KOYO is a high-quality cylindrical roller bearing designed for heavy-duty applications requiring durability and precision. Manufactured by KOYO, a renowned leader in bearing technology, this model is engineered to provide exceptional performance in demanding industrial environments.
Key Features of Bearing NJ 2315 C4 FY KOYO
- Type: Cylindrical Roller Bearing, NJ Design
- Internal Clearance: C4 (greater than normal clearance for thermal expansion and high-speed operation)
- Seal Type: FY (Contact seal on one side, non-contact seal on the opposite side)
- Manufacturer: KOYO
Dimensions
- Inside Diameter (d): 75 mm
- Outside Diameter (D): 130 mm
- Width (B): 31 mm
This bearing is specifically designed to handle heavy radial loads and moderate axial loads in one direction, making it ideal for use in gearboxes, electric motors, and various industrial machinery. The C4 clearance allows the bearing to accommodate higher thermal expansion and reduce the risk of premature failure under high-speed conditions.
The FY sealing arrangement helps protect the bearing from contamination and retains lubrication, thus extending the service life and reliability of the bearing in harsh environments.
Applications
The NJ 2315 C4 FY KOYO bearing is widely used in:
- Industrial gearboxes
- Electric motors and generators
- Machine tool spindles
- Pumps and compressors
- Construction and mining equipment
Choosing the NJ 2315 C4 FY KOYO bearing ensures optimized performance, reduced maintenance, and enhanced operational efficiency in your machinery. Its robust construction and precision engineering make it a reliable choice for professionals seeking longevity and consistent results.

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KOYO: Leading Manufacturer of Bearings and Transmission Technology
KOYO is a globally recognized manufacturer specializing in high-quality bearings and advanced transmission technology. Founded in 1921, KOYO has established itself as a pioneer in the industry with nearly a century of expertise and innovation.
Company History
Since its inception in Japan, KOYO has consistently evolved to meet the changing demands of industrial applications. In the mid-20th century, KOYO expanded its technology portfolio by incorporating cutting-edge manufacturing processes that enhanced product durability and performance. Today, KOYO is part of JTEKT Corporation, a leader dedicated to automotive components and industrial products.
Product Range
The extensive KOYO product lineup addresses a wide array of bearing and transmission needs:
- Ball Bearings: Deep groove, angular contact, and thrust ball bearings designed for smooth rotational performance.
- Roller Bearings: Cylindrical, tapered, spherical, and needle roller bearings suitable for heavy load and shock resistance.
- Automotive Bearings: Specialized bearings for wheel hubs, transmission systems, and engine components.
- Precision Bearings: High-accuracy bearings for machine tools, robotics, and aerospace applications.
- Transmission Technology: Gearboxes, steering systems, and other transmission-related components tailored for industrial and automotive sectors.
Main Focus and Technologies
KOYO is committed to delivering innovative bearing solutions that optimize machinery efficiency and reliability. Key technologies include:
- Advanced Material Science: Use of high-grade steel and ceramics to extend bearing life.
- Sealing Technology: Enhanced seals to prevent contamination and maintain lubrication integrity.
- Smart Bearings: Integration of sensors for predictive maintenance and condition monitoring.
- Low Friction Designs: Bearings engineered to reduce energy loss and heat generation.
Application Areas
KOYO bearings and transmission components serve a diverse range of industries, including:
- Automotive Industry: Engines, transmissions, wheels, and chassis applications.
- Industrial Machinery: Manufacturing equipment, conveyors, and heavy machinery.
- Aerospace: High-precision bearings for aircraft systems.
- Robotics and Automation: Compact, precision bearings for robotic arms and automation systems.
- Renewable Energy: Bearings for wind turbines and solar tracking systems.
Company Headquarters
KOYO's headquarters are located in Japan, reflecting its strong roots in Japanese manufacturing excellence. As part of the JTEKT Corporation network, KOYO benefits from a global presence with production and sales facilities distributed worldwide to support regional markets effectively.