Boston Gear PPB24 Pillow Block Bearing Plain Sleeve Bearing

Boston Gear PPB24 Pillow Block Bearing—Plain Sleeve Bearing—is a split cast-iron pillow block designed to anchor a 1-1/2 in bore sleeve bearing. The two-bolt base provides a stable mounting and, with a 4-1/2 in bolt-hole spacing, aligns easily with standard shaft installations. Rated for light-duty service, this fixed (non-expansion) bearing does not accommodate thermal expansion, making it suitable for steady, moderate-load conveyors, fans, or machine tools where a durable, low-maintenance shaft support is required. The housing’s cast-iron construction delivers rigidity and durability, while the plain sleeve bearing (as opposed to a ball bearing insert) provides a simple wear surface for shaft support. The PPB24 is part of Boston Gear’s PPB Series and is commonly paired with standard 1-1/2 in shafts in industrial environments requiring reliable, cost-effective shaft support.