Overview
The Peer FB204 is a durable 3-bolt flange bracket bearing designed for industrial automation and power transmission systems. FB204 is the standard flange housing designation compatible with 200-series ball bearing inserts. This cast iron unit features a self-aligning ball bearing insert and two set screws on the inner race for positive shaft locking, making it a reliable choice for conveyor systems, agricultural machinery, and general mechanical drive applications.
Key Features
- 3-bolt offset flange mounting for rigid support and easy installation
- Cast iron housing with powder-coated epoxy finish resists corrosion
- Self-aligning ball bearing insert for radial load capacity
- Dual set screw shaft locking prevents unwanted rotation
- Grease zerk (relief fitting) for convenient relubrication
- Felt labyrinth seal protects bearing from contaminants in industrial environments
Technical Specifications
- Bore Diameter: 3/4″ (19.05 mm)
- Bearing Insert Series: 200-series (UC204-12 standard)
- Bore Thru-Length: 1.221″
- Housing Material: Cast iron
- Mounting Bolt Centers: 1.500″ Ă— 0.874″ (horizontal Ă— vertical)
- Bolt Size: 3/8″
- Overall Housing Dimensions: 2.5″ wide Ă— 4.25″ high
- Weight: 2 lbs
- Locking Method: Set screws (dual, zone-hardened inner ring)
- Seal Type: Felt labyrinth seal with flinger
- Lubrication: Grease zerk for relubricating capability
Typical Applications
- Conveyor system drive shafts and idlers
- Agricultural and construction equipment
- Industrial mixer and blender assemblies
- Material handling and process equipment
- General manufacturing and power transmission
- Compact-space installations requiring single-side mounting
Compatibility & Replacements
Compatible With
- 200-series self-aligning ball bearing inserts (UC204-12, UC204-10, UC204-8)
- Standard 3/4″ shaft applications with set screw locking
- Industry-standard flange-mount conveyor and drive systems
- Equipment designed for FB204 offset flange housings
Replaces / Drop-In Replacement For
- UC204-12 (bearing insert within FB204 flange housing)
- Sealmaster FB-204 (metric equivalent available)
- AST Bearings FB204-12U
- Other 3/4″ bore, 3-bolt flange configurations meeting ISO 3953 standards
Works With
- Standard 3/4″ diameter shafts with grease or oil lubrication
- Any 200-series pillow block or bearing cartridge using UC204 inserts
- Conveyor roller and drive sprocket assemblies
- Industrial motor couplings and transmission systems
- Standard industrial maintenance and relubrication schedules
