Metal bearing housing with a cylindrical roller bearing on a white background

Spherical 4-Bolt Pillow Block Bearing

2 15/16
$850.24
Skip to product information
Metal bearing housing with a cylindrical roller bearing on a white background
Spherical 4-Bolt Pillow Block Bearing

Spherical 4-Bolt Pillow Block Bearing

SPB4 2 15/16 T
$850.24
6 left
Bore/Shaft Size

Secure Checkout

Free Local Delivery on orders $100+

30-Day Return Policy
Request a Quote

Spherical 4-Bolt Pillow Block Bearing is a heavy-duty mounted bearing unit designed to support rotating shafts in grain handling, agricultural, and industrial equipment.

Its self-aligning spherical bearing insert helps tolerate minor shaft misalignment while providing smooth and reliable operation.

Built with a durable cast iron housing and secure four-bolt mounting base, this bearing is suitable for conveyors, grain handling systems, agricultural machinery, and replacement or OEM applications.

Key Features

Heavy-duty 4-bolt mounted bearing unit
Self-aligning spherical bearing insert
Durable cast iron housing
Designed to support rotating shafts
Suitable for replacement and OEM use
Available in multiple bore / shaft sizes

Common Applications


• Grain conveyors
• Elevator legs
• Agricultural machinery
• Material handling equipment
• Industrial shaft support systems

Choose the correct bore / shaft size from the available options before ordering.
Suitable for replacement and OEM use.

Not sure if you need a pillow block or flange block bearing? See our guide on pillow block vs flange block bearings.

Frequently Asked Questions

What does "self-aligning" mean on a spherical pillow block bearing?
The bearing insert can pivot slightly inside the housing, so minor misalignment between the shaft and the mounting surface doesn't cause the bearing to bind or wear unevenly. This is useful on conveyor frames that flex slightly over time.
How do I know which bore size I need?
Measure the diameter of the shaft the bearing will mount on. The bore size must match the shaft diameter exactly, and this bearing is available in multiple bore sizes, so check your shaft before ordering.
Can this bearing replace a rigid (non-spherical) 4-bolt pillow block?
In most cases, yes, as long as the bore size and bolt pattern match. The spherical insert is generally an upgrade in tolerance for misalignment, not a different mounting style.
What's the difference between this and a flange block bearing?
Pillow block bearings mount on a flat, horizontal surface with bolts running down through the base. Flange block bearings mount on a vertical or perpendicular surface with bolts through the face.

You may also like