Overview
The FYH NA208 is a precision ball bearing insert engineered for demanding industrial and motion control applications. This deep groove ball bearing features a robust 4-bolt flange mount design that enables quick and secure installation in mounting housings. The NA208 (also referenced as NFX208) combines compact dimensions with reliable performance, making it an ideal choice for mechanical power transmission systems where precision alignment and load capacity are critical.
Key Features
- Deep groove ball bearing design for radial and axial load support
- 4-bolt flange mount configuration for secure, repeatable installation
- Sealed bearing construction to minimize contamination and extend service life
- 1-1/2″ (38mm) cylindrical bore for standard shaft applications
- Made in Japan by FYH, a trusted manufacturer of industrial bearings
- Compatible with mounted bearing unit housings (UCF, NA, NFX series)
Technical Specifications
- Bearing Type: Deep groove ball bearing
- Bore Diameter: 1-1/2″ (38mm)
- Mounting Style: 4-bolt flange (square or round flange options)
- Part Number: NA208 / NFX208
- Manufacturer: FYH Corporation (Japan)
- Sealing: Sealed bearing insert
- Material: Hardened steel races and balls
- Load Rating: Standard industrial duty
- Preload: Eccentric locking collar options available
Typical Applications
- Conveyor and material handling systems
- Industrial pumps and fan assemblies
- Gearbox and power transmission equipment
- Rotating machinery and spindle applications
- Agricultural and manufacturing equipment
- Food processing and packaging machinery
Compatibility & Replacements
Compatible With
- FYH mounted bearing unit housings (UC, UCF, NA, and NFX series)
- Standard 4-bolt flange mounting blocks and adapters
- 1-1/2″ shaft diameter applications
- Industrial machinery requiring precision ball bearing inserts
Replaces / Drop-In Replacement For
- FYH NA208-24 (sealed variant with eccentric locking collar)
- Equivalent 4-bolt flange bearings with 1-1/2″ bore from other manufacturers
- Standard deep groove ball bearing inserts in mounted unit housings
Works With
- FYH bearing housings and mounting units
- 4-bolt flange adapter plates and pillow blocks
- Standard industrial shaft and coupling configurations
- Set screw and eccentric locking collar retention systems




