UCFL204 Flange Pillow Block Ball Bearing – Reliable Support for Industrial Equipment

The UCFL204 is a compact flange-mounted ball bearing unit designed for easy installation and steady shaft support. It combines a spherical outer ring bearing with a cast iron two-bolt flange housing, making it a practical choice for machines that need side or vertical mounting.

Buyers in Europe and North America often choose this model because it offers good performance at a reasonable cost while handling both radial loads and light axial loads. The self-aligning feature helps compensate for minor shaft misalignment during assembly, which reduces stress on the shaft and extends service life.

Pre-lubricated and sealed for protection against dust and moisture

Two-bolt diamond-shaped flange for simple bolt-on installation

Set screw locking for secure shaft grip

Cast iron housing with good strength and vibration resistance

Suitable for operating temperatures from -20°C to +120°C (depending on grease)

The UCFL204 is widely used across many industries because of its straightforward mounting and solid performance:

Agricultural equipment (conveyors, harvesters, seeders)

Belt and roller conveyors

Packaging and food processing machinery

Small fans, pumps, and blowers

Construction equipment and material handling systems

Textile and woodworking machines

The housing is made from cast iron and designed with two mounting holes for easier installation on flat surfaces.

Inside the housing is a UC204 insert bearing. The bearing is fixed onto the shaft with set screws to help reduce movement during operation.

The insert can also be replaced separately during maintenance work.

To help improve service life:

Add grease regularly

Keep the mounting area clean

Check screw tightness during operation

Avoid improper shaft alignment

Simple maintenance can help reduce machine downtime and improve bearing performance.

Q: How do I install the UCFL204 correctly?
A: Align the flange holes with the mounting surface, insert bolts, and tighten evenly. Make sure the shaft is clean and the set screws are tightened to the recommended torque. No special tools are required.

Q: Can this bearing handle outdoor or wet environments?
A: The standard version offers basic dust and splash protection. For continuous outdoor use or frequent wash-down, consider adding protective covers or choosing a version with better sealing.

Q: What shaft size does the UCFL204 fit?
A: It is designed for a 20 mm (approximately 3/4 inch) shaft. Always measure your shaft diameter before ordering to ensure a proper fit.

Q: How often does it need re-lubrication?
A: Under normal conditions, the factory grease lasts a long time. In dusty, high-speed, or high-temperature environments, periodic re-lubrication through the grease fitting (if present) will help extend bearing life.

Q: What is the difference between UCFL204 and UCP204?
A: Both use the same UC204 bearing insert. The main difference is the housing: UCFL204 has a two-bolt flange for side or vertical mounting, while UCP204 has an upright pillow block housing for mounting on a flat base.

Q: Is this bearing interchangeable with other brands?
A: Yes. Most manufacturers follow the same international dimensions for UCFL204, so units from different suppliers are generally interchangeable as long as the bore size and load ratings match your requirements.

This model remains a popular choice for OEMs and maintenance teams looking for a dependable, cost-effective flange bearing solution.

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