Timken's spherical pillow blocks combine rugged cast-iron or cast-steel housings with high capacity spherical roller bearings to meet the toughest demands of heavy industry.  The convenient split-housing design simplifies assembly and service.  Each pillow block contains an advanced-design spherical roller bearing with improved geometry and raceway finish for maximum load capacity and service life.  Timken manufactures pillow blocks in two main styles:  SAF and SDAF.  The larger SDAF block is suggested for extreme heavy duty applications. 

Size range: 35 mm to 300 mm shafts (1.37795 in. to 11.811 in.), with special shaft sizes available up to 1000 mm (39.37 in.) and beyond.

Design Attributes

• Split construction allows for easy assembly and disassembly.
• Pry tool slots and the exclusive Pry-Lug fulcrum simplifies bearing inspection, service and replacement.
• Caps are removed quickly and easily, preventing damange to the bearing or housing.
• Integrated housing and bearing design enhances unit lubrication characteristics.
• Multiple sealing options protect against contamination.

Applications

• Conveyors
• Mining applications
• Pulp and paper mills
• Rolling mills

Timken spherical pillow blocks are available with a variety of options, including:

• Heavy-duty housings
• Take-up units
• Inch and metric mounting adapters
• Tapered bore bearings
• Seal variations
• Alternate steel materials

Available in a variety of types, including:

• SAF - two- or four-bolt pillow block, cast iron
• SDAF - four-bolt heavy duty type pillow block, cast iron
• SAFS - two- or four-bolt pillow block, cast steel
• FSAF - four-bolt pillow block, cast iron (only when an option)
• FSAFS - four-bolt pillow block, cast steel (only when an option)
• SDAFS - four-bolt heavy-duty pillow block, cast steel

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Exploded view of a Timken spherical roller bearing pillow block, showing tapered bore spherical roller bearing, adapter sleeve, locknut and lock washer, stabalizing ring and triply labyrinth seals.  Recesses in cap and base, that form the pry tool slot, and integral fulcrum lugs in base and cap are shown.