Overview
The Hub City FC350X1-3/4 flange cartridge bearing is a mounted bearing unit manufactured by Regal Beloit for industrial power transmission and machinery applications. Built with a cast iron housing and a 1-3/4″ straight bore, this unit provides reliable support for shafts operating perpendicular to the mounting surface. The FC350 series is recognized for interchangeable mounting dimensions compatible with competitive products, making it a versatile choice for equipment upgrades and replacements.
Key Features
- Four-bolt round flange cartridge with piloted design for easy installation
- 52100 bearing steel ball bearings with single-row configuration
- Nitrile rubber seals with steel trash guards for protection against contamination
- Setscrew locking mechanism on narrow inner race for secure, non-expansion mounting
- Prelubricated with #2 lithium grease; relubricatable via 1/4-28 Zerk fitting
- Nylon cage for bearing stability and reduced noise
Technical Specifications
The Hub City FC350X1-3/4 offers precise dimensional consistency and performance metrics suited for general-duty industrial service:
- Bore Diameter: 1-3/4″ (1.75″)
- Bore Type: Straight, setscrew lock
- Housing Material: Cast iron with gray paint finish
- Bearing Type: Ball bearing, single row, spherical outer race
- Bearing Material: 52100 bearing steel
- Mounting Style: 4-bolt round flange, piloted
- Expansion Type: Non-expansion (fixed)
- Seal Type: Single-lip contact seal with steel trash guard
- Lubrication: #2 lithium grease (relubricatable)
- Maximum Speed: 3,500 rpm
- Operating Temperature Range: Up to 200°F
- Misalignment Angle: 1-1/2°
- Duty Rating: Medium duty
- Weight: Approximately 4–5 lbs (varies by mounting depth)
Typical Applications
The Hub City FC350X1-3/4 is widely used in:
- General industrial machinery and equipment
- Conveyor systems and material handling
- Fan and blower assemblies
- Pump drive shafts and water circulation systems
- Aggregate processing and mining equipment
- Agricultural machinery and drive systems
- Take-up bearing assemblies for chain or belt-driven systems
Compatibility & Replacements
Compatible With
- Industrial machinery with perpendicular shaft mounting requirements
- Equipment designed for 4-bolt round flange piloted cartridge bearings
- Power transmission systems using 1-3/4″ bore shaft sizes
- General industrial duty applications rated for medium-duty service
- Machinery capable of accommodating up to 200°F operating temperatures
Replaces / Drop-In Replacement For
The Hub City FC350X1-3/4 features interchangeable mounting dimensions with most competitive 4-bolt round flange cartridge bearings in the 1-3/4″ bore size class. Verify your machine drawing and mounting bolt pattern before ordering. Verify compatibility with your system integrator before ordering.
Works With
- Standard 3/8″ mounting bolts
- Piloted 4-bolt flange cartridge bore mounting systems
- Relubricatable systems with 1/4-28 NPT Zerk fittings
- General industrial bearing maintenance procedures using standard lithium grease
