Overview
The Rexnord PB22447FH is a precision mounted spherical roller bearing pillow block engineered for heavy-duty rotary and linear motion applications. Featuring a cast iron 4-bolt pillow block housing with single setscrew locking collar, this unit provides robust support for conveyor systems, packaging machinery, material handling equipment, and general industrial automation.
Key Features
- 2-15/16″ bore diameter mounted spherical roller bearing
- Self-aligning double-row spherical roller design for load distribution
- Cast iron 4-bolt pillow block housing for durability
- Single setscrew collar locking device for secure shaft mounting
- Clearance seal design protects against contamination
- Precision engineered for smooth, low-friction operation
Technical Specifications
Key performance metrics for standard Link-Belt B22400 series pillow blocks with this bore size include:
- Bore Diameter: 2-15/16″ (2.9375″)
- Housing Type: Cast Iron 4-Bolt Pillow Block
- Locking Device: Single Setscrew Collar
- Seal Type: Clearance Seal (Floating Labyrinth)
- Dynamic Load Rating: 51,100 lbs
- Static Load Rating: 71,500 lbs
- Maximum Operating Temperature: 225°F (107°C)
- Maximum Speed: 1,950 rpm (dependent on applied load)
- Weight: Approximately 23 lbs
Typical Applications
The Rexnord PB22447FH pillow block is well-suited for:
- Conveyor belt systems and transfer lines
- Industrial packaging and filling equipment
- Material handling and accumulation systems
- Wood and paper processing machinery
- Food processing and bottling lines
- General industrial machine tools and automation equipment
- Applications requiring shock load tolerance and self-aligning capability
Compatibility & Replacements
Compatible With
- Link-Belt and Rexnord spherical roller bearing families
- Standard industrial shafting (tapered or parallel mounts)
- ISO metric and imperial mounting specifications
- 4-bolt pillow block mounting holes (standard spacing)
- Standard industrial greasing systems and lubricants
Replaces / Drop-In Replacement For
- Rexnord PEB22447H (expansion pillow block variant)
- Link-Belt equivalent bearing units with same bore diameter and mounting class
- Verify OEM specifications before ordering for direct compatibility in critical applications
Works With
- Cast iron fixed and expansion pillow block housings
- Setscrew and adapter sleeve mounting collars
- Clearance and contact seal designs in this series
- Standard NLGI Grade 2 industrial bearing greases
- High-temperature and EP (extreme pressure) lubricants per application
