Overview
The UCP series pillow block bearing is a compact, one-piece mounted bearing unit featuring a durable cast iron housing designed for industrial applications requiring normal load transmission. UCP pillow blocks combine an insert bearing with a solid-base cast iron housing, providing self-aligning performance and excellent shaft support. This unit includes a 2-bolt mounting base for secure, level-surface installation and a grease fitting for straightforward relubrication and maintenance.
Key Features
- Self-aligning ball bearing insert with wide inner ring compensates for shaft misalignment and handles normal industrial loads
- 2-bolt cast iron housing for robust mounting and stability in any installation position
- Integrated grease fitting enables simple on-site relubrication without disassembly
- Set-screw locking mechanism secures the shaft and prevents slippage during operation
- Pre-lubricated and ready to install from receipt, reducing commissioning time
- Bonded seal design protects bearing internals from contamination in wet or dirty environments
Technical Specifications
UCP series pillow block bearings are available in multiple bore sizes to match standard shaft diameters. Common configurations include:
- Mounting Type: 2-Bolt Base (threaded holes or clearance holes dependent on model)
- Housing Material: High-strength cast iron with solid base construction
- Locking Device: Setscrew with ball-point design to prevent shaft damage
- Seal Type: Bonded seal with metal shields and slinger design for contamination protection
- Lubrication: Pre-greased bearing with relubricating grease fitting (typically NPT thread)
- Insert Bearing: Chrome steel, wide inner ring, self-aligning spherical outside diameter
- Load Duty: Standard to light-duty rating (exact radial and static load capacity varies by bore size)
Typical Applications
UCP series pillow block bearings are specified for a broad range of industrial equipment and machinery, including:
- Conveyor systems and belt drives
- Agricultural and farm equipment
- HVAC units and furnaces
- Manufacturing equipment and machinery assemblies
- Crushers, mills, and material handling systems
- Pump assemblies and motor-driven equipment
- Construction and mining equipment
- Marine and water-handling applications
Compatibility & Replacements
Compatible With
- Standard industrial shafts (available in multiple bore diameters: 1 in., 1-5/16 in., 1-7/16 in., 1-15/16 in., etc.)
- Metric and inch-series shaft applications
- Level mounting surfaces and equipment frames designed for 2-bolt pillow block installation
- Most industrial drive systems and mechanical power transmission equipment
Replaces / Drop-In Replacement For
UCP series pillow blocks maintain interchangeable bolt-hole spacing and base-to-center height dimensions with many competitive units from manufacturers including Fafnir (RASC series), Browning (VPS/VPE series), Sealmaster (NP/RP series), and other ISO-standard pillow block suppliers. Verify exact bore size and model compatibility with your system integrator before ordering.
Works With
- Standard ISO 286 shaft tolerance classes (h6, h7, h9)
- Industrial grease refill (NLGI Grade 2 or equivalent standard bearing grease)
- Standard metric and imperial fasteners (2-bolt configuration)
- Rigid and flexible shaft coupling systems
- Laboratory and field alignment tools for checking bearing runout and housing concentricity
