Overview
The SealMaster SFT-20TC is a premium 1-1/4″ bore flange-mounted ball bearing designed for standard-duty industrial applications. This unit features a 4-bolt piloted cast iron flange housing with 52100 bearing steel inserts, making it an ideal choice for machinery requiring reliable, long-service positioning and power transmission. The SFT-20TC is part of SealMaster’s Gold Line bearing family, engineered for superior performance in manufacturing, pumping, and mechanical power transmission systems.
Key Features
- 4-Bolt Piloted Flange: Ensures precise alignment and secure mounting on standard shaft applications
- 52100 Bearing Steel Inserts: Provides excellent load capacity and durability under continuous operation
- Cast Iron Housing: Black oxide coated for corrosion resistance and extended service life
- Concentric Locking Mechanism: Holds bearing insert firmly in place without setscrew interference
- Single Lip Contact Seal: Protects against contamination while minimizing drag
- Relubricatable Design: Allows periodic maintenance for extended bearing life
Technical Specifications
The SFT-20TC mounting bearing is engineered to exacting industrial standards with the following specifications:
- Bore Diameter: 1-1/4″ (1.25″)
- Bearing Type: Mounted ball bearing unit (radial)
- Flange Mount: 4-bolt piloted flange
- Housing Material: Cast iron, black oxide coated
- Bearing Insert: 52100 bearing steel
- Duty Rating: Standard duty
- Locking Mechanism: Concentric lock
- Seal Type: Single lip contact seal
- Cage Material: PPS (polyphenylene sulfide) land-riding retainer
- Relubricatable: Yes
Typical Applications
The SFT-20TC is suited for a broad range of industrial machinery including:
- Centrifugal and positive displacement pump systems
- Industrial fan and blower drives
- Conveyor and material handling equipment
- Gearbox and speed reducer applications
- Electric motor mounting and alignment
- Agricultural and construction machinery
- Textile, paper, and food processing equipment
Compatibility & Replacements
Compatible With
- 4-bolt flange mounting surfaces per industrial standards
- 1-1/4″ shaft diameter applications (straight bore)
- Standard industrial lubrication systems (mineral oil and synthetic greases)
- Machinery operating at moderate speeds and loads
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Direct replacement capability depends on exact flange configuration, bolt hole spacing, and mounting surface specifications.
Works With
- Compatible with standard piloted flange mounting systems
- Works with 1/2″ bolt hardware (typical for 4-bolt flange units)
- Integrates with industrial-grade grease and oil lubrication systems
- Suitable for belt-drive, chain-drive, and direct-couple power transmission
