Overview
The Dodge F4B-SC-107 (also known as Baldor 124208) is a standard-duty pillow block bearing designed for general industrial applications. This four-bolt square flange bearing unit accommodates a 1-7/16″ shaft bore and is rated for continuous operation up to 5,500 rpm. The casting is made of durable iron housing with a single-lip contact seal for reliable protection in typical industrial environments.
Key Features
- Superior setscrew locking: Dodge’s patented 65° spacing design provides optimum balance between locking force and inner ring stress.
- Reinforced cage design: Heat-stabilized nylon ball cage with fiber-glass reinforcement for added structural strength.
- Anti-rotation protection: Integrated anti-rotation pin prevents outer race rotation within the housing.
- DualGuard seal system: Patented Dodge sealing system offers maximum protection in tough industrial environments.
- Cast iron housing: Powder-coated finish ensures corrosion resistance and long service life.
Technical Specifications
- Bore Diameter: 1-7/16″ (36.512 mm)
- Bearing Type: Ball bearing (207 series)
- Series: 207 (Standard Duty)
- Mounting: Four-bolt square flange
- Bolt Center-to-Center: 3.63″
- Bolt Hole Diameter: 0.5″
- Overall Length/Height: 4-3/4″
- Overall Depth: 1-3/4″
- Housing Material: Cast iron (powder-coated)
- Locking Device: 65° setscrew
- Maximum Speed: 5,500 rpm
- Dynamic Load Rating: 5,759 lbs
- Static Load Rating: 3,461 lbs
- Seal Type: Single-lip contact seal with nitrile rubber
- Temperature Range: 225°F to 400°F
- Duty Class: Standard/Normal duty, non-expansion
Typical Applications
The Dodge F4B-SC-107 is suitable for:
- Conveyor belt systems
- Fan and blower assemblies
- Industrial pump drives
- General machinery and equipment requiring surface-mounted bearing support
- Exposed shaft applications where a robust, sealed flange bearing is preferred
Compatibility & Replacements
Compatible With
- Dodge industrial bearing systems and power transmission assemblies
- Standard 1-7/16″ shaft diameter applications
- Four-bolt flange mounting surfaces with 3.63″ bolt center-to-center spacing
- Baldor/Dodge motor and gearbox packages
Replaces / Drop-In Replacement For
- Baldor 124208 (original manufacturer part number)
- Dodge 207 series equivalent two-bolt configurations may be substituted with proper flange adapter, but verify mounting dimensions before installation.
Works With
- Dodge mounting hardware and guard kits
- Standard industrial bearing lubricants (oil or grease compatible with nitrile seals)
- Flange-mounted motor couplings and pulleys rated for 1-7/16″ shafts
- Dodge bearing end cap covers (such as Dodge 128354)





