Product Overview

The UCPH series is a high-center variant of the UCP pillow block; the shaft center height (the distance from the base bottom to the shaft centerline) is greater than that of the standard UCP. High-center housings are selected when the shaft needs to be elevated above the mounting surface or when clearance is required beneath the shaft for other components (such as other shafts, piping, or mechanisms).

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.

Structural Features

Housing base is similar to the standard UCP, but the housing body is taller

Shaft center height (Dimension H) is higher than that of a standard UCP with the same bore diameter

Spherical bore accommodates a spherical outer ring ball bearing

Two-bolt mounting

Typically equipped with UC-type set-screw locking bearings

Common Models

Product Features

Elevated shaft position: Shaft center height exceeds that of standard housings, meeting specific layout requirements

Under-shaft clearance: Creates space beneath the shaft for the arrangement of other components

Mounting compatibility: Base mounting hole spacing matches or closely aligns with standard UCP

Self-aligning capability: Spherical interface allows for self-alignment

Retrofitting/Adaptation: Frequently used in equipment modifications to match existing shaft heights

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.

Technical Specifications

Shaft diameter (metric): 12mm ~ 50mm

Load series: 200 (Light duty)

Locking method: UC set screw

Housing material: Gray cast iron

Seal type: Double-lip seal

Number of mounting bolts: 2

Center height: Higher than the standard UCP value for the same bore diameter

Typical Applications

Elevated conveyor supports; equipment retrofitting/replacement (matching existing shaft heights); applications requiring clearance for piping or other shafts beneath the shaft; transmission systems with special layouts; elevated supports for agricultural machinery

Selection Tips

Verify that the center height (Dimension H) matches equipment requirements during selection

High-center housings involve a longer cantilever; check housing strength and stability

If there are no specific height requirements, prioritize the standard UCP series