Brief Introduction
The cast iron extended flange bearing unit represents a precision-engineered mechanical component designed to deliver exceptional performance across diverse industrial applications. Manufactured in strict accordance with JIS standards, this advanced bearing assembly combines a high-grade insert bearing with an extended inner bearing configuration housed within a durable cast iron enclosure. Featuring a secure set screw locking mechanism and a space-saving 2-hole flange design, this bearing unit addresses the critical demands of modern industrial equipment where reliability, durability, and efficient space utilization are paramount.
This flange mounted bearing unit excels in environments requiring consistent rotational support, whether subjected to constant directional forces or alternating rotation patterns. The extended inner bearing architecture provides enhanced stability and misalignment compensation capabilities, making it an optimal choice for machinery installations where precise alignment may be challenging. Designed for wall or frame mounting applications, this bearing housing unit delivers cost-effective performance without compromising on operational integrity, serving industries from manufacturing and material handling to agricultural and woodworking sectors.
Distinctive Features and Advantages
Advanced Contamination Protection System
The cast iron flange bearing unit incorporates a sophisticated dual-seal configuration that delivers superior protection against environmental contaminants. An inner rubber seal, reinforced with a precision-engineered sheet steel washer, works in tandem with an external sheet steel slinger to create multiple defensive barriers. This multi-layer sealing architecture effectively prevents dust particles, metallic debris, moisture infiltration, and other foreign matter from compromising the bearing's internal components, ensuring optimal performance in challenging industrial environments where airborne contaminants are prevalent.
Superior Thermal and Velocity Performance
Engineered for demanding operational conditions, this flange ball bearing unit demonstrates exceptional capability in high-temperature and high-speed scenarios. The extended inner bearing design, combined with precision-manufactured components and optimized internal geometry, maintains operational stability across a wide temperature spectrum. This thermal resilience allows the bearing unit to function reliably in applications experiencing significant temperature variations, while the precision balance supports rotation speeds up to 5,850 r/min, meeting the requirements of modern high-performance machinery.
Robust Load-Bearing Capacity
Constructed from premium-grade steel components and housed within a reinforced cast iron body, the oval flange bearing unit exhibits impressive load-handling characteristics. The structural integrity of the unit enables it to support substantial radial loads while efficiently distributing forces across the bearing elements. This optimized load distribution minimizes localized stress concentrations, reduces component wear rates, and extends operational lifespan in heavy-duty applications such as conveyor systems, industrial pumps, and material handling equipment.
Misalignment Tolerance Capability
The extended inner bearing configuration provides inherent compensation for installation misalignment, offering flexibility during mounting procedures. This flange mounted bearing can accommodate moderate static misalignment angles without compromising rotational smoothness or bearing life. The enhanced tilting behavior ensures continued reliable operation even when minor shaft deflections or housing misalignments occur during machinery operation, reducing installation precision requirements and simplifying mounting procedures.
Lifetime Lubrication System
Pre-filled with high-quality lubricant engineered for extended service intervals, this bearing unit operates maintenance-free under standard conditions. The integrated lubrication port within the cast iron housing facilitates supplementary lubrication when operating parameters exceed normal ranges, providing operational flexibility. This lubrication strategy minimizes maintenance requirements, reduces operational downtime, and lowers total cost of ownership across the bearing's service life.
Compact Installation Footprint
The 2-hole flange mounting configuration delivers a space-efficient design ideal for installations with constrained dimensional envelopes. This compact profile makes the extended inner bearing unit particularly valuable in modern machinery designs where maximizing functional density is critical, without sacrificing structural integrity or load capacity.
Explore our comprehensive range of industrial solutions in different industries we serve.
Materials and Manufacturing Process
Component Materials
The insert bearing and associated rotating elements are manufactured from high-grade bearing steel, selected for superior hardness, wear resistance, and fatigue strength. The cast iron housing provides an optimal balance of structural rigidity, vibration damping characteristics, and cost-effectiveness. Sealing components utilize industrial-grade rubber compounds and sheet steel materials engineered for long-term resilience against environmental factors.
Precision Manufacturing
Each flange bearing housing undergoes rigorous quality control throughout the production process. The bearing components are heat-treated to achieve optimal hardness gradients, while grinding operations ensure precise dimensional tolerances. The cast iron housing is manufactured using controlled casting processes that deliver consistent wall thickness and material properties, followed by precision machining of mounting surfaces and bolt holes to guarantee proper alignment during installation.
Industrial Applications
Manufacturing and Production Equipment
The cast iron extended flange bearing unit serves as a critical component in manufacturing environments, providing reliable shaft support for production machinery, assembly line equipment, and automated systems. Its bolt-on mounting design enables secure attachment to machine frames and walls, while the robust construction withstands the continuous operation demands typical of industrial production facilities.
Material Handling Systems
Conveyor systems, sortation equipment, and material transfer machinery benefit from this bearing unit's high radial load capacity and contamination resistance. The dual-seal system protects against dust and debris common in warehouse and distribution environments, while the extended inner bearing design accommodates the shaft deflections often encountered in long-span conveyor applications.
Compact Machinery Applications
The space-efficient 2-hole flange design makes this flange ball bearing particularly suitable for packaging equipment, textile machinery, food processing equipment, and small industrial pumps where installation space is limited. The compact profile allows machinery designers to minimize equipment footprints without compromising bearing performance or reliability.
Agricultural and Heavy Equipment
Agricultural machinery, woodworking equipment, and metalworking tools operating in demanding environments rely on this bearing unit's contamination resistance and load capacity. The ability to function in both constant and alternating rotation directions makes it adaptable to diverse equipment configurations across these sectors.
Pump and Compressor Applications
Industrial pumps and compressor systems requiring reliable shaft support benefit from this bearing unit's thermal stability and vibration resistance. The cast iron housing provides effective vibration damping, contributing to quieter operation and reduced stress on associated machinery components.
Learn more about our sustainability initiatives in bearing manufacturing.
Installation and Operational Guidelines
Pre-Installation Preparation
Thoroughly clean the shaft surface and mounting location to remove any contaminants, burrs, or surface irregularities. Verify shaft diameter matches the h6 tolerance specification to ensure proper fit. Inspect the bearing unit for shipping damage and confirm all components are present before beginning installation.
Mounting Procedure
Position the flange bearing unit on the mounting surface, aligning the bolt holes with the frame or wall attachment points. Insert mounting bolts and tighten progressively in a cross-pattern to ensure even load distribution. Slide the bearing onto the shaft and position it at the desired location, then tighten the set screws alternately to secure the bearing without inducing shaft damage or bearing distortion.
Alignment Verification
Confirm the bearing unit is properly aligned to minimize misalignment beyond recommended tolerances. While the extended inner bearing provides misalignment compensation, proper initial alignment maximizes bearing life and operational efficiency.
Operating Environment Considerations
Maintain operating temperatures within recommended ranges to preserve lubricant properties and bearing material integrity. While the dual-seal system provides excellent contamination protection, avoid prolonged exposure to corrosive chemicals or excessive moisture that may degrade sealing effectiveness over time.
Load and Speed Compliance
Operate within the specified basic dynamic load rating of 14 kN and basic static load rating of 7.8 kN to prevent premature bearing failure. Do not exceed the limiting speed of 5,850 r/min, as excessive rotational velocities can cause overheating, lubricant breakdown, and accelerated component wear.
Maintenance Inspection Schedule
Implement regular visual inspections to identify signs of abnormal wear, seal damage, lubricant leakage, or housing cracks. While the bearing is lubricated for life under normal conditions, harsh operating environments may necessitate supplementary lubrication through the integrated lubrication port. Use only compatible lubricants specified for bearing applications.
For technical support and guidance, visit our support center.
Comparison with Related Bearing Products
Cast Iron vs. Pressed Steel Housing Units
While pressed steel housing bearing units offer lighter weight and lower cost, the cast iron flange bearing provides superior vibration damping, dimensional stability, and resistance to housing distortion under heavy loads. Cast iron construction also delivers enhanced mounting rigidity, making it preferable for applications where precision shaft positioning is critical.
Extended vs. Standard Inner Bearing Design
Standard inner bearing configurations provide adequate performance for well-aligned installations, whereas the extended inner bearing design offers enhanced misalignment compensation and improved shaft retention. This makes the extended configuration particularly valuable in applications where shaft deflection or mounting surface irregularities are concerns.
Set Screw vs. Eccentric Locking
Set screw locking mechanisms, as employed in this bearing unit, provide simple installation and reliable shaft retention for standard industrial applications. Eccentric locking systems offer enhanced security against rotational creep in applications with frequent start-stop cycles or severe vibration, though at increased cost and complexity.
Frequently Asked Questions
What distinguishes the locking mechanism of this flange bearing unit?
The bearing employs a set screw locking system utilizing two grub screws positioned on the extended inner bearing. These screws are tightened against the shaft surface to create a secure mechanical connection, preventing axial movement and rotational slippage during operation.
Does this bearing accommodate axial shaft movement?
No, this cast iron extended flange bearing unit is designed primarily for radial load support and does not permit axial shaft displacement. It provides moderate initial misalignment compensation but maintains a fixed axial position once installed. Applications requiring axial movement should consider alternative bearing configurations.
When is supplementary lubrication required?
Under standard operating conditions with moderate loads, speeds, and temperatures, the pre-filled lubrication remains effective throughout the bearing's service life. Supplementary lubrication becomes necessary when operating in extreme environments characterized by sustained high temperatures, heavy contamination, excessive loads, or continuous high-speed operation. The integrated lubrication port facilitates maintenance when required.
What material composition ensures this bearing's durability?
The rotating bearing components are manufactured from high-quality bearing steel, providing optimal hardness, wear resistance, and fatigue life. The housing utilizes durable cast iron, selected for its excellent cost-to-performance ratio, structural rigidity, and vibration damping properties. Sealing elements incorporate industrial rubber compounds and sheet steel reinforcement.
Which rotation patterns are compatible with this bearing unit?
The oval flange ball bearing unit accommodates both unidirectional constant rotation and bidirectional alternating rotation patterns. This versatility makes it suitable for diverse machinery configurations, including equipment with reversing drives, reciprocating mechanisms, and standard continuous rotation applications.
How does the dual-seal system enhance bearing protection?
The two-piece sealing architecture creates multiple barriers against environmental contaminants. The inner rubber seal prevents internal lubricant escape while blocking particle ingress, reinforced by a sheet steel washer that adds structural support. The outer sheet steel slinger deflects larger contaminants before they reach the primary seal, significantly extending bearing life in dusty or dirty environments.
What installation space advantages does the 2-hole flange design offer?
The compact 2-hole mounting configuration reduces the bearing unit's overall footprint compared to 4-hole flange designs, enabling installation in space-constrained applications. The 99 mm center distance between bolt holes provides adequate mounting security while minimizing the required mounting surface area, making it ideal for compact machinery designs.
Why Choose E-ASIA Bearing for Your Flange Bearing Units
With over 60 years of bearing industry expertise, E-ASIA Bearing delivers comprehensive solutions combining product excellence with exceptional customer support. Our cast iron extended flange bearing units represent decades of engineering refinement, manufacturing precision, and quality commitment.
Comprehensive Product Range
We provide cost-effective, multi-variety bearing solutions spanning complete industrial applications. Whether you require specialized configurations or standard bearing units, our extensive inventory ensures rapid availability.
Technical Expertise and Support
Our experienced technical team offers application guidance, installation support, and troubleshooting assistance, ensuring optimal bearing performance in your specific operational context. We provide customized recommendations based on your load requirements, speed parameters, and environmental conditions.
Quality Assurance
Every bearing unit undergoes rigorous quality control procedures, ensuring compliance with international standards and consistent performance. Our commitment to quality primacy and service supremacy drives continuous improvement across our product line.
Global Service Network
Operating across more than 50 countries with an extensive dealer network, we deliver local stock availability and remote delivery capabilities. Our 7x24 hours service commitment ensures support whenever your operations require assistance.
Value-Focused Pricing
Through partnerships with over 1,000 manufacturing facilities, we deliver exceptional price-performance ratios without compromising quality. Our cost-effective solutions help reduce your operational expenses while maintaining reliability standards.
Visit our about us page to learn more about our commitment to excellence in bearing solutions, or contact our team to discuss your specific bearing requirements and discover how our cast iron extended flange bearing units can enhance your machinery performance.
English
