Sealmaster MPD-43 Pillow Block Ball Bearing, Non-Expansion Type, Medium-Duty, Regreasable, Double Setscrew Locking Collars, Felt Seals, Cast Iron Housing, 2-11/16″ Bore, 3-1/2″ Base to Center Height, 9″ Bolt Hole Spacing Width, ±2 degrees Misalignment Angle

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The Sealmaster MPD medium-duty pillow block ball bearing has a cast-iron housing with two bolt holes, felt seals, and double setscrew locking collar. The two-bolt cast iron housing with steel ball bearing insert provides a ready-to-mount installation. The solid one-piece housing is built for maximum strength and rigidity and the black oxide-coated bearing races are corrosion resistant. A felt seal protects against contamination and helps retain lubricant. It can be relubricated if necessary and has a non-expansion-type bearing with double setscrew locking collar that provides a secure attachment to a guided shaft. The pillow block is suitable for carrying shafts with radial or radial-and-thrust loads and is designed for medium-duty applications.

Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers.

Sealmaster manufactures bearings and bearing accessories. The company, founded in 1938 and headquartered in Elsmere, KY, meets International Organization for Standardization (ISO) standard 9001.


Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Relubricatable solid one-piece housing pillow block for maximum strength and rigidity
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Relubricatable solid one-piece housing pillow block for maximum strength and rigidity
Non-expansion-type bearing with double setscrew locking collars for secure attachment to guided shaft
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Relubricatable solid one-piece housing pillow block for maximum strength and rigidity
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Two-bolt housing with ball bearing insert for a ready to mount installation
Two-bolt housing with ball bearing insert for a ready to mount installation
Cast iron housing and steel bearing unit for carrying shafts with radial or radial and thrust loads
Relubricatable solid one-piece housing pillow block for maximum strength and rigidity
Non-expansion-type bearing with double setscrew locking collars for secure attachment to guided shaft
Felt seal to protect against contaminants and retain lubrication