2 Pack, 1-inch Bore Flange Bearing — ships ready to use: Includes 2 x UCFL205-16 pillow block bearings with 1" (25.4mm) bore diameter. Set screw locking style secures shaft in place. Ships ready to use — zerk port installed on housing for scheduled field maintenance access without disassembly. Chrome steel insert with cast iron housing: Bearing insert made from chrome steel (AISI 52100) for high hardness and long service life under load. Housing is solid cast iron for rigidity and vibration resistance. 2-bolt oval flange design. Bearing number UC205-16, housing number FL205. Bolt hole size: 5/16" (8mm). Dimensions: 5.11 x 2.67 x 1.4 inches. Self-aligning design reduces wear and noise: Spherical outer diameter of the insert automatically compensates for shaft misalignment up to ±2°. Reduces noise, vibration, and premature wear — especially useful on conveyors, agricultural equipment, and DIY builds where perfect alignment is difficult. Wide application — conveyor, agricultural, DIY and more: Suitable for 1-inch shaft applications including conveyor systems, agricultural machinery, swamp cooler / evaporative cooler shaft assemblies, Santa Maria rotisserie grills, rock tumblers, go-kart axles, and general industrial equipment. ABEC-3 precision grade. Donepart quality, built for real-world use: Cast iron housing withstands vibration and impact in demanding environments. Chrome steel (AISI 52100) insert bearing delivers consistent performance under radial and axial loads. Suitable for both indoor industrial equipment and outdoor agricultural applications. 30-day return guaranteed. Contact us for any fit or installation questions before purchase.

The UCFL205-16 is a 2-bolt oval flange pillow block bearing designed for 1-inch (25.4mm) shaft applications. Each pack includes 2 units, ready to install with no additional components required.

Construction: The insert bearing is manufactured from chrome steel (AISI 52100), providing high hardness, excellent wear resistance, and long service life under radial and axial loads. The housing is cast from solid gray iron — no hollow cavities or fillers — delivering superior rigidity and resistance to vibration compared to stamped steel housings.

Self-aligning capability: The spherical outer surface of the UC205-16 insert automatically compensates for shaft misalignment of up to ±2°. This is especially valuable in welded or fabricated frames where perfect geometric alignment is difficult to achieve during installation.

Set screw locking: Two set screws secure the inner ring to the shaft, preventing axial displacement under load. A standard hex key (Allen wrench) is used for installation — no special tooling required.

Lubrication: Each bearing is pre-lubricated with grease before shipment and protected with an anti-rust coating. A grease fitting (zerk) is installed on the housing, allowing field re-lubrication without disassembly. For most applications, re-lubrication every 6 months is sufficient under normal operating conditions.

Technical specifications:
Model: UCFL205-16
Bearing insert number: UC205-16
Housing number: FL205
Bore diameter: 1 inch (25.4mm)
Overall length: 5.118 inches (130mm)
Overall height: 2.677 inches (68mm)
Housing thickness: 1.4 inches
Bolt hole size: 5/16 inch (8mm)
Bolt hole center-to-center: 99mm
Precision grade: ABEC-3
Locking type: Set screw
Sealing: Double rubber seal (2RS)
Lubrication type: Greasable (zerk fitting included)
Quantity: 2 units per pack

Typical applications: Conveyor belt systems, agricultural equipment (auger drives, spreader shafts), swamp cooler and evaporative cooler motor shafts, Santa Maria rotisserie grills, rock tumblers, go-kart and Baja Bug steering assemblies, general industrial machinery, food processing equipment, and packaging lines.

Compatibility note: Standard manufacturing tolerance for this bearing type is ±0.002"–0.003". This is normal for set-screw style pillow block bearings at this price point. If your shaft is at the upper tolerance limit (exactly 1.000"), a light pass with fine sandpaper on the shaft end will ensure smooth insertion. This is standard practice for precision shaft fits.

Donepart UCFL flange bearings are available in five bore sizes: 1/2" (UCFL201-8), 5/8" (UCFL202-10), 3/4" (UCFL204-12), 1" (UCFL205-16), and 1-1/4" (UCFL206-20). All sizes share the same 2-bolt oval flange design and set screw locking style and are available within this listing.