Overview
The Sealmaster 700864 TB-10 is a standard-duty pillow block ball bearing unit designed for general industrial machinery, conveyor systems, and drive train applications. This tapped base mounted bearing features a 5/8″ (0.625″) bore diameter and combines a gold line wide inner race insert with a cast iron housing for robust performance in production environments.
Key Features
- 5/8″ (0.625″) bore diameter with wide inner race design
- Cast iron tapped base housing for secure mounting to machine frames
- 52100 bearing steel with black oxide corrosion protection
- Setscrew shaft locking for positive drive engagement
- Felt labyrinth seal with flinger for contaminant protection
- Lock pin and dimple system prevents outer ring rotation
- Self-aligning ±1.5 degrees for misalignment compensation
Technical Specifications
| Model Number | 700864 (Sealmaster TB-10) |
| Bore Diameter | 5/8″ (0.625″) |
| Bearing Type | Mounted Ball Bearing (Pillow Block) |
| Housing Material | Cast Iron |
| Base Type | Tapped Base (4-hole mounting) |
| Bearing Material | 52100 Bearing Steel |
| Surface Finish | Black Oxide Coated |
| Shaft Locking | Setscrew (Diamond Faceted) |
| Seal Type | Felt Labyrinth with Flinger |
| Self-Alignment | ±1.5 Degrees |
| Operating Temperature | -20°F to +200°F |
| Relubrication | Grease Fitting (Plugged) |
| Weight | 1.8 lbs |
Typical Applications
- Conveyor and material handling systems
- Agricultural and construction equipment
- Industrial pump and motor mounting
- Pulley and sprocket drive shafts
- OEM machinery requiring standard-duty support
- Replacement bearings for worn pillow block units
Compatibility & Replacements
Compatible With
- 1/2″ to 3/4″ shaft sizes (standard TB series compatibility)
- 4-hole tapped base mounting (SAE standard spacing)
- All standard pillow block lubrication systems
- Belt drive, chain drive, and coupled shaft applications
Replaces / Drop-In Replacement For
Verify compatibility with your equipment documentation. The TB-10 series is a direct replacement for equivalent 5/8″ bore tapped base pillow blocks from comparable manufacturers when mounting holes and bore diameter align.
Works With
- Standard grease (GoldPlex® HP recommended by manufacturer)
- Any machinery requiring SAE standard pillow block mounting
- Conveyor, pump, and fan drive systems
- Open and closed coupled shaft arrangements


















