Overview
The Dodge F4B-E-307R is a Type E-XTRA mounted tapered roller bearing unit engineered for heavy-duty industrial applications requiring high radial and thrust load capacity. The F4B-E-307R is a tapered roller bearing unit, 4-bolt flange type with a 3-7/16 in bore diameter, non-expansion (fixed) bearing. It features a cast iron housing with a 4-bolt flange mounting, set screw locking device, and XTS triple-lip contact seal in the F4B-E series. This unit delivers reliable performance across food processing, air handling, mining, aggregate processing, paper production, and material handling industries.
Key Features
- Type E-XTRA mounted bearings are manufactured with high-capacity tapered roller bearing inserts which allow for combination radial and thrust loads; featuring the highest load ratings in the industry.
- They are mounted to the shaft by means of set screw collars having 65 degree set screw spacing for optimum clamping force.
- The tapered roller bearings for these mounted bearings all have case carburized inner races (cones), outer races (cups), and rollers.
- Regreasable design supports extended service intervals
- Type E-XTRA bearings are suitable for high load applications and used in industries such as air handling; food and beverage; mining; aggregate and cement; pharmaceutical; paper and forest; and unit and baggage handling.
Technical Specifications
- Bore Diameter: 3-7/16″ (3.4375″)
- Bearing Type: Tapered Roller
- Mounting Type: 4-Bolt Flange
- Housing Material: Cast Iron
- Housing Configuration: 1-Piece Solid
- Seal Type: XTS Triple-Lip Contact
- Expansion: Non-Expansion (Fixed)
- Bolt Spacing: 7″ Center-to-Center
- Bolt Diameter: 3/4″
- Bolt Circle Diameter: 9.9″
- Overall Length/Diameter: 9-1/4″
- Overall Depth: 5-1/2″
- Overall Height: 9-1/4″
- Dynamic Load Rating: 17,750 lbs
- Static Load Rating: 108,600 lbs
- Maximum Speed: 1,640 rpm
- Operating Temperature: -100°F to +200°F
- Weight: 50–51.2 lbs
- Relubricatable: Yes
- Pilot Configuration: No Pilot
Typical Applications
The Dodge F4B-E-307R is ideal for machinery requiring high load carrying capacity with minimal downtime. Common applications include conveyor systems, aggregate processing, cement production, lumber mills, food processing equipment, air handling units, and material handling systems where set screw collar mounting and rigid bearing support are required.
Compatibility & Replacements
Compatible With
- 3-7/16″ shaft diameters (3.4375″)
- Standard 4-bolt square flange mounting surfaces
- Set screw collar mounting systems
- Machines requiring rigid, non-expansion bearing support
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Dodge F4B-E-307R (manufacturer part number 023114) may be interchangeable with other Type E-XTRA units of the same bore size, but always confirm mounting dimensions and load requirements with original equipment specifications.
Works With
- Standard industrial grease lubrication systems
- Set screw collar locking mechanisms (65-degree spacing)
- Flange-mount applications on conveyor frames, gear reducers, and driven machinery
- RBC Bearings and Dodge Industrial product ecosystem
