Maintenance
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Copyright © 2025 Fluent Conveyors, LLC. All right reserved
Fluent Conveyors logo is a registered trademarks of Fluent Conveyors, LLC. Serial Number 97664258 Registered on Dec. 12, 2023
Copyright © 2025 Fluent Conveyors, LLC. All right reserved
Fluent Conveyors logo is a registered trademarks of Fluent Conveyors, LLC. Serial Number 97664258 Registered on Dec. 12, 2023
Fluent Conveyors supplies replacement Dodge Industrial 4-bolt flange bearings for general replacement and retrofitting. Maximum mounting strength for heavy-duty conveyor applications.
Reliable performance for conveyor and industrial applications.
We carry Dodge flange bearings in other bolt configurations to match your mounting requirements and load conditions:
2-bolt flange bearings (also called diamond flange bearings) provide compact vertical mounting for light to moderate load applications
A 3-bolt triangular pattern distributes mounting forces more evenly than 2-bolt designs while maintaining a relatively compact footprint.
Dodge bearings are manufactured in the USA at ISO 9001:2015-certified facilities. Fluent guarantees consistent quality and unrivaled lead times for OEM replacement bearings.
for reliable performance.
Dodge conveyor parts deliver measurable advantages that improve your conveyor’s performance and lifespan:
4-bolt flange bearings are available in different housing materials and seal configurations to match operating environments. Select materials and seals based on contamination exposure, temperature extremes, and washdown requirements.
Cast iron housings: Standard duty for general industrial conveyor applications with moderate temperatures and dry to moderately dusty conditions.
Cast steel housings: Heavy-duty applications requiring maximum strength and durability. Available with Dodge Safety Mount and S-2000 bearing families featuring lifetime guarantee against housing breakage.
Thermoplastic housings: Washdown duty bearing applications in food processing and packaging where corrosion resistance and hygiene are mandatory. Compatible with NSF H1 grease for incidental food contact.
Stainless steel housings: Maximum corrosion-resistant bearing protection for harsh chemical environments, marine applications, or extreme moisture exposure.
Triple lip contact seals: Standard for most industrial applications. Three sealing lips provide excellent dust ingress protection and moisture exclusion while allowing grease relubrication.
FloBack seals: Design improves contamination protection in extremely dusty environments. The seal geometry redirects contaminants away from the bearing cavity.
Labyrinth seals: Non-contact sealing for high-temperature and high-speed applications where contact seal friction would generate excessive heat.
For food processing conveyors, specify thermoplastic housings with food-grade grease (NSF H1 grease). These food and beverage bearings meet sanitary standards and withstand regular washdown cycles without degradation.
Choose a locking mechanism based on shaft loads, thermal expansion, and maintenance access.
Set screw units secure to the shaft using two set screws threaded into a wide inner ring. The set screws create dimples in the shaft surface to prevent rotation and axial movement. This locking method works best with hardened shafts (minimum Rockwell C30) to resist deformation under set screw pressure.
Advantages:
Simple installation requires only a hex wrench for set screws
Economical compared to eccentric collar designs
Common for standard conveyor applications with moderate loads
Quick removal for maintenance
Set screw torque must match bearing size specifications. Under-torqued set screws allow shaft slippage, while over-torqued set screws damage the shaft. Verify shaft hardness before installation to prevent deformation that loosens the bearing.
Eccentric collar units use a locking mechanism that wraps around the shaft circumference. As you tighten the collar, it creates a uniform clamping force and stronger shaft engagement. This provides better axial load control and manages thermal expansion in one direction.
When to choose eccentric collar locking:
Applications with significant axial forces that could dislodge set screw units
Fixed-end shaft positioning requiring reliable axial control
Conveyors experiencing thermal growth requiring one fixed bearing location
Higher vibration environments where set screws might loosen over time
Eccentric collar bearings cost more than set screw units but provide superior holding power and longer service life.
Choose 4-bolt flange bearings for heavy-duty applications requiring maximum mounting strength and load capacity. The four-bolt square flange pattern provides superior load distribution and mounting rigidity to 2-bolt and 3-bolt configurations.
Common applications include:
Heavy-duty conveyor head shaft bearing and conveyor tail shaft bearing mounting
Large diameter idler shaft support for high-tension conveyor belt tracking and tensioning systems
Industrial material handling equipment in mining, aggregate processing, and heavy manufacturing
Wall or frame mounting applications requiring vertical surface mounting with high load capacity
Drive systems with significant radial and thrust loads
Continuous-duty operations
For lighter-duty applications, consider 2-bolt or 3-bolt configurations for more compact installations. Protect bearings with bearing guards in contaminated environments.
Relubricate bearings through a zerk fitting every 2,000–4,000 operating hours in clean environments. Increase frequency to 500–1,000 hours in dusty or wet conditions.
During lubrication, inspect the contact seal or metal shield for damage or deterioration. Replace damaged seals immediately to prevent contamination.
Check mounting bolt tightness monthly for the first three months, then quarterly. Vibration can loosen bolts over time.
Monitor bearing operating temperature during inspections. Temperatures exceeding the temperature rating (typically 180°F for standard units) indicate lubrication, loading, or alignment problems.
Flange bearing size is determined by load requirements, shaft diameter, mounting surface dimensions, conveyor speed, and environmental conditions. To figure out which flange bearing you need, follow these steps:
Dodge offers one of the industry's best mounted-bearing size ranges, so you can find an exact match.
Fluent designs and manufactures custom conveyors for aggregate, C&D, recycling, and other heavy industries. When you source flange bearings through Fluent, you're working with engineers who specify, install, and maintain these components every day.
Genuine Dodge flange bearings
Technical guidance grounded by real-world experience
Available for Fluent conveyors and retrofit applications
Standard lead time 1–2 weeks
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