Overview
The SealMaster F-526 2-bolt flange mount bearing (model SFT-23 1-7/16) is a medium-duty, flanged ball bearing unit designed for direct face mounting in industrial machinery. SealMaster, manufactured by Regal Rexnord, has delivered mounted bearing solutions since 1935. This F-526 unit features a cast iron housing, 1-7/16 inch bore, and set screw locking mechanism for secure shaft installation. The bearing is equipped with extended inner and outer races that distribute loads effectively and reduce shaft deflection in mechanical power transmission applications.
Key Features
- 2-Bolt Flange Design: Direct face mounting for simple installation in existing equipment.
- Cast Iron Housing: Durable and corrosion-resistant powder-coated epoxy finish.
- Zone Hardened Inner Race: Heat-treated specifically under the ball path for extended bearing life.
- Felt Labyrinth Seal: Protects rolling elements from contamination in dry to moderately damp environments.
- Set Screw Locking: 120° spaced diamond-faceted setscrews with anti-rotation locking pin provide positive shaft engagement.
- Land-Riding Retainer: Metal ball retainer design permits 360° grease circulation for superior lubrication retention.
Technical Specifications
- Bore Diameter: 1-7/16 inches (1.4375″)
- Bolt Center to Center Length: 5.1250 inches
- Overall Length: 6.1250 inches
- Housing Material: Cast Iron with epoxy coating
- Bearing Type: Ball bearing with extended races
- Locking Device: Set screw with dimple positioning system
- Duty Rating: Standard Duty
- Seal Type: Felt labyrinth seal
- Operating Temperature: -20°F to +200°F (standard range)
Typical Applications
The SealMaster F-526 is commonly used in:
- Conveyor drive systems and material handling equipment
- Pump and fan assemblies requiring shaft support
- Gearbox input/output shafts
- Agricultural machinery and implements
- HVAC and industrial motor mounting
- Wood processing and light industrial machinery
Compatibility & Replacements
Compatible With
- Standard shaft mounting (flange-to-mounting surface interface)
- Motors with 1-7/16″ shaft diameter
- Flexible couplings and direct-drive applications
- Machines requiring 2-bolt face-mount bearing blocks
- Grease lubrication systems (standard NLGI #1 or #2 grease)
Replaces / Drop-In Replacement For
This SealMaster F-526 with SFT-23 insert is the direct replacement for equipment originally specified with:
- SealMaster SFT-23 1-7/16 two-bolt flange units
- Standard industrial bearing applications requiring 1-7/16″ bore, 2-bolt flange configuration
Works With
- Standard NLGI grease lubrication (zerk fitting)
- Shaft sizes matching 1-7/16″ bore specification
- Conventional industrial machinery alignment and mounting procedures
- OEM replacement bearing programs
