Overview
The SealMaster SFT-12 is a precision-engineered flange-mounted ball bearing unit designed for industrial machinery and equipment. This cast iron two-bolt flange bearing features 52100 bearing steel with black oxide coating and setscrew lock. The unit is non-expansion (fixed) with a 0.75″ straight bore and accepts ±2.0° static misalignment, making it suitable for applications with moderate radial loads and light to moderate thrust loads.
Key Features
- Relubricatable with lithium complex NLGI 2 grease and felt labyrinth seal
- Zone-hardened inner race with standard clearance and replaceable insert
- Grease fitting on the housing outer surface for easy relubrication
- Cast iron housing with machined foot pads for rigidity and vibration damping
- Setscrew locking collar designed for mounting onto bearing surfaces perpendicular to the shaft axis
- Cylindrical pilot extension on back face for accurate placement and increased stability
Technical Specifications
The SealMaster SFT-12 meets industry standards for flange-mounted bearing units in standard-duty service. Key technical parameters include operating temperature range, maximum speed rating, and dimensional tolerances for reliable installation in existing equipment footprints.
Typical Applications
This housing type is designed for applications with rotating and eccentric loads, with the standard-duty deep-groove ball bearing cartridge rated for applications with moderate radial loads and light to moderate thrust or combination loads. Mounted bearings are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers. Common uses include conveyor systems, pump shafts, fan motors, and general industrial machinery requiring durable, low-maintenance flange mounting.
Compatibility & Replacements
Compatible With
- Standard 3/4″ shaft applications
- Equipment requiring 2-bolt flange mounting
- Systems using standard lithium grease lubrication
- Industrial machinery with ±2° static misalignment tolerance
Replaces / Drop-In Replacement For
- SealMaster SFT-12 T (Alternative variant)
- SealMaster SFT-12 LO (Low-outlet variant)
- SealMaster SFT-12 RM (Alternate configuration)
Works With
- Cast iron or steel mounting surfaces
- 3/8″ bolt mounting hardware (standard 2-bolt pattern)
- Setscrew locking collar systems
- NLGI 2 compatible grease and relubricatable systems












