Overview
The Sealmaster MPD-43 2-11/16 pillow block bearing is a medium-duty mounted ball bearing designed for industrial machinery and equipment requiring reliable shaft support. This pillow block features a 2-11/16 inch bore diameter and 2-bolt base mounting, making it suitable for a wide range of industrial automation and mechanical applications. With its durable cast iron housing and advanced locking mechanism, the MPD-43 delivers consistent performance in demanding operating conditions.
Key Features
- Medium-duty ball bearing with extended inner race design
- 2-11/16 inch shaft bore diameter with 2-bolt pillow block base
- Dual setscrew locking on both sides of ball path with 120° spacing
- Sealmaster exclusive lock pin and dimple system for direct lubrication and anti-rotation
- Cast iron housing with powder coated epoxy finish and black oxide corrosion-resistant race
- Felt-lined labyrinth seal with unique land riding retainer for superior pocket clearance
- Zone-hardened inner race with 52100 high quality bearing steel
- 360° grease circulation around rolling elements for optimal retention and utilization
- Precision-ground, diamond-faceted setscrews
- Permanent metal nameplate for identification
Technical Specifications
- Bearing Type: Ball Bearing, Non-Expansion (Fixed)
- Shaft Diameter: 2-11/16 inches (2.6875″)
- Housing Type: Pillow Block, 2-Bolt Base
- Duty Rating: Medium-Duty
- Center Line to Base: 3-1/2 inches
- Minimum Bolt Hole Spacing: 7-7/8 inches
- Housing Material: Cast Iron with Epoxy Powder Coat
- Inner Race Material: 52100 High Quality Bearing Steel
- Sealing Type: Felt-lined Labyrinth Seal with Flinger
- Locking Method: Dual Setscrew with 120° Spacing
- Lubrication System: Direct Lubrication via Lock Pin and Dimple
Typical Applications
The Sealmaster MPD-43 is widely used in industrial equipment requiring reliable shaft support, including:
- Ventilation and blower systems (New York Blower plug fans and similar equipment)
- Conveyor systems and material handling machinery
- Industrial motors and pump applications
- HVAC equipment and fan assemblies
- General machinery and production equipment where medium-duty pillow block mounting is required
Compatibility & Replacements
Compatible With
- Shafts with 2-11/16 inch diameter
- Standard 2-bolt pillow block mounting frames
- Medium-duty industrial machinery and equipment
- Ventilation systems and blower applications
- Industrial automation and control applications
Replaces / Drop-In Replacement For
Verify compatibility with your equipment manufacturer or system integrator before ordering. The P-312 designation indicates this specific bearing variant.
Works With
- Standard grease lubrication systems
- 2-bolt pillow block mounting bases
- Industrial bearing maintenance and replacement programs
