PBC Linear PN08D Plain Bearing 1/2″ ID Open Type Pillow Block

Overview

The PBC Linear PN08D is an open-type plain linear bearing pillow block engineered for demanding linear motion applications. With a 1/2″ inner diameter and precision running clearance of 0.0005″ per side, this bearing combines a mountable aluminum housing with a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The PN08D replaces traditional linear ball bearings where vibration dampening and extended service life are priorities.

Key Features

• Precision 0.0005″ per side running clearance ensures tight tolerances for accurate shaft guidance
• Self-lubricating FrelonGOLD® liner eliminates need for external lubrication and provides maintenance-free performance
• Static load capacity up to 166,000 lb (740 kN) for heavy-duty industrial use
• Temperature range of -400°F to +400°F (-240°C to 204°C) for extreme environment compatibility
• Maximum operating speed of 8 m/s (315 in/s) for smooth linear motion
• Open bearing design allows full shaft support and improved system rigidity

Technical Specifications

• Bearing Type: Open-type plain linear pillow block
• Inner Diameter (ID): 1/2 inch
• ID Clearance: 0.0005 inch per side (standard precision)
• Housing Material: Anodized aluminum
• Liner Material: FrelonGOLD® (PTFE-based self-lubricating)
• Overall Length: 1.5 inches
• Temperature Rating: -400°F to +400°F (-240°C to 204°C)
• Maximum Speed: 8 m/s (315 in/s)
• Static Load Capacity: Up to 166,000 lbf (740 kN)
• Series: PBC Linear Simplicity® Plain Bearing
• Mounting: Pillow block with standard mounting holes

Typical Applications

Plain linear bearings operate reliably in environments where contamination, vibration, shock loads, and extreme conditions quickly degrade traditional linear ball bearings. The PN08D excels in:

• Manufacturing and assembly machinery with high vibration
• Dirty, dusty, or contaminated industrial environments
• Extreme temperature processing equipment
• Automated printing, labeling, and packaging systems
• Food processing and washdown applications
• Foundry and welding equipment
• Material handling and conveyor systems

Compatibility & Replacements

Compatible With

• 1/2″ diameter precision round shafts (PBC Linear or equivalent quality)
• Linear rail and end-supported shaft mounting systems
• Open bearing designs for fully supported shafts
• Industry-standard pillow block mounting interfaces
• Systems requiring low-friction, vibration-dampening linear motion

Replaces / Drop-In Replacement For

• Standard plain linear bearings in 1/2″ ID sizes with equivalent mounting patterns
• Maintenance-intensive ball bearings in contaminated or extreme-temperature environments
• Other PBC Simplicity® 1/2″ pillow block models with identical outer dimensions

Works With

• PBC Linear precision-ground shafting systems
• O-ring and retaining ring groove mounting systems
• Linear ball bearings for parallel shaft applications
• Self-aligning and self-lubricating bearing ecosystems
• Industrial machinery requiring ISO or JIS standard bearing sizes