Product Overview

The UCFL series features an oval (rhomboid) flanged housing secured to a vertical mounting surface via two bolts. Compared to the square-flanged UCF series, the UCFL is smaller, lighter, and requires less installation space, making it ideal for light-duty applications where space is limited.

The Pillow block Bearings are essentially a variant of Deep Groove Ball Bearings; they are characterized by a spherical outer diameter surface on the outer ring, allowing them to fit into a corresponding concave spherical seat within the bearing housing to provide self-aligning capability. These bearings are primarily designed to accommodate combined radial and axial loads—with radial loads predominating—and are generally unsuitable for bearing axial loads in isolation.

Pillow block Bearing is a bearing unit combined roller bearing and housing together. Most of the outer spherical bearings are made outer diameter sphere, installation and imported bearing bore together with a spherical structure forms, versatility and interchangeability.

Structural Features

Oval (rhomboid) flange housing with one bolt hole on each side

Spherical inner bore designed to accommodate a spherical outer-ring ball bearing

Two-bolt mounting for a compact structure

Typically paired with UC-type bearings (set-screw locking)

Some models equipped with a grease nipple

Common Models

Product Features

Compact and Lightweight: Smaller overall dimensions than UCF; saves installation space

Easy Installation: Two-bolt mounting allows for quick installation

Cost-Effective: Uses less material; lower price than UCF models with the same bore diameter

Self-Aligning Capability: Spherical interface allows for automatic self-alignment

Suitable for Light Loads: Two-bolt mounting offers lower rigidity than four-bolt mounting; suitable for light-to-medium loads

Technical Specifications

Shaft Diameter (Metric): 12mm ~ 120mm

Shaft Diameter (Imperial): 1/2" ~ 3"

Load Series: 200 Light Duty (Primary)

Locking Method: UC Set Screw / UK Adapter Sleeve

Housing Material: Gray Cast Iron (Standard) / Stainless Steel / Pressed Steel

Seal Type: Double-lip seal / Triple-lip seal

Number of Mounting Bolts: 2

Pillow Block Bearings can be classified into three types based on their locking method: UC (set screw), UEL (eccentric sleeve), and UK (adapter sleeve).

Commonly matched cast bearing seats include vertical seat (P), narrow vertical seat (PA), high center vertical seat (PH), square seat (F), convex square seat (FS), convex circular seat (FC), diamond seat (FL), annular seat (C), slider seat (T), suspension seat (HA), adjustable diamond seat (FA), and suspension bearing seat (FB);

The commonly matched stamped bearing seats include circular stamped seats (PF), diamond stamped seats (PFL), triangular stamped seats (PFT), vertical stamped seats (PP), etc.

Typical Applications

Small conveyors, roller conveyor ends, light industrial machinery, home appliances, agricultural machinery, textile machinery, packaging machinery, small food processing equipment, automated assembly lines, fitness equipment

Selection Tips

Two-bolt mounting offers limited rigidity; choose the four-bolt square UCF housing for heavy-load or high-vibration applications

Tighten both mounting bolts evenly during installation to prevent housing misalignment

Commonly used for light-duty applications with space constraints; not recommended for equipment subject to high impact loads