Buyers Products Set Screw Locking Flange Bearing (2 Bolt) is built for long life with simple installation and maintenance. The driveline-grade steel bearing is mounted in a cast iron housing, which helps make the flanges rugged and durable. The included grease fitting ensures ease of maintenance for continual smooth operation. The standard 2 bolt mounting design makes installation easy even in tight places. Its set screw design helps avoid shaft slippage.
Specifications
| Bearing Insert Material | Carbon Steel |
|---|---|
| Bearing Insert Type | Self Aligning |
| Bi (Diagram) | 1.500 |
| Bolt Hole Center to Center | 4.609 |
| Bolt Pattern | 2 Hole |
| Bolt Size | 0.500 |
| Bore Diameter | 1.125 |
| G (diagram) | 0.50 |
| Greasable (y/n) | Yes |
| Housing Material | Cast Iron |
| I (diagram) | 0.70 |
| L (diagram) | 1.22 |
| Locking Type | Set Screw |
| Overall Depth | 1.59 |
| Overall Height | 3.16 |
| Overall Width | 5.41 |
| S (diagram/Bolt Hole Diameter) | 0.625 |
Advanced Technical Overview: 1-1/8 Inch Shaft Diameter Set Screw Style Flange Bearing - 2 Hole
The 1-1/8 Inch Shaft Diameter Set Screw Style Flange Bearing with a 2-hole configuration represents a meticulously engineered solution designed for the demanding requirements of industrial power transmission and rotational support systems. This component, distinguished by its robust construction, precise shaft locking mechanism, and inherent self-aligning capabilities, is optimized for applications requiring reliable performance, extended service life, and simplified maintenance protocols. Fabricated by Buyers Products, this bearing unit integrates a high-quality carbon steel insert within a durable cast iron housing, offering a synergy of material science and mechanical design to withstand significant operational stresses and environmental challenges.
Precision Engineering and Material Selection
Bearing Insert: High-Performance Carbon Steel with Self-Aligning Capability
At the core of this flange bearing unit is a bearing insert crafted from driveline-grade carbon steel. Carbon steel is selected for its excellent balance of hardness, tensile strength, and wear resistance, properties crucial for sustaining continuous rotational motion under various load conditions. The specific metallurgical composition ensures that the bearing raceways can endure the high contact stresses generated between the rolling elements and the inner/outer rings, thereby minimizing friction and extending operational lifespan. The use of carbon steel in the bearing insert directly contributes to its capacity for heavy-duty applications, ensuring that it can competently manage both radial and moderate axial loads inherent in driveline and conveyor systems.
A critical engineering feature of this bearing insert is its self-aligning capability. This design attribute is paramount in applications where perfect shaft alignment cannot always be guaranteed due to manufacturing tolerances, structural deflection, or thermal expansion. The self-aligning mechanism allows the bearing insert to pivot slightly within the housing, compensating for initial static or dynamic shaft misalignment. This intrinsic flexibility mitigates edge loading on the rolling elements, reduces localized stress concentrations, and prevents premature bearing failure caused by excessive bending moments on the shaft. By accommodating up to several degrees of angular misalignment, the self-aligning characteristic significantly enhances the bearing's reliability and contributes to smoother, quieter operation by ensuring optimal load distribution across the bearing's internal geometry.
Housing Construction: Robust Cast Iron for Structural Integrity
The external housing of this flange bearing is precision-cast from high-grade iron. Cast iron is an ideal material choice for bearing housings due to its exceptional compressive strength, excellent vibration damping characteristics, and inherent rigidity. These properties are vital for maintaining the structural integrity of the bearing assembly and ensuring stable operation even under dynamic loads and shock conditions. The substantial mass and metallurgical structure of cast iron effectively absorb and dissipate operational vibrations and noise, leading to a quieter working environment and reducing fatigue on adjacent machinery components. Furthermore, cast iron provides superior resistance to deformation, ensuring that the critical internal clearances of the bearing are maintained over its operational life, which is essential for consistent performance.
The design of the cast iron housing incorporates a robust flange configuration with a standard 2-hole bolt pattern. This design facilitates straightforward and secure mounting to a variety of structural surfaces, frames, or bulkheads. The precision-machined bolt holes, with a bolt hole diameter of 0.625 inches and a center-to-center spacing of 4.609 inches, ensure compatibility with standard fasteners (0.500-inch bolt size) and simplify installation. The flange's inherent rigidity, coupled with the sturdy cast iron construction, ensures that the bearing is securely anchored, providing unwavering support for the rotating shaft and effectively transmitting operational forces to the mounting structure.
Advanced Locking Mechanism: The Set Screw System
The integral set screw locking mechanism is a cornerstone feature of this flange bearing, specifically engineered to provide a positive and secure attachment between the bearing's inner ring and the 1-1/8 inch diameter shaft. This mechanism employs one or more set screws strategically positioned on the bearing's inner ring, which, when tightened, exert radial force onto the shaft. This creates an interference fit, relying on frictional forces to prevent axial and circumferential movement between the shaft and the inner ring. The efficacy of the set screw design lies in its simplicity, adjustability, and reliable anti-slippage performance.
Proper application of the set screws is crucial for optimal performance. The screws should be tightened evenly and progressively to the manufacturer's specified torque values. This ensures a concentric grip on the shaft, minimizing runout and preventing vibrational loosening. The direct contact and clamping action of the set screws provide a robust resistance to torque transmission and axial thrust, making this locking type highly effective in applications where continuous rotational motion and fluctuating loads are common. Furthermore, the set screw design allows for relatively easy installation and removal, facilitating maintenance, replacement, or repositioning of the bearing without requiring specialized tools or complex procedures, thus reducing downtime and labor costs.
Operational Dynamics and Performance Benefits
Load Management and Durability
This flange bearing is engineered to effectively manage a combination of radial and axial loads. The carbon steel bearing insert, with its optimized internal geometry and rolling elements, is designed to distribute loads evenly across the raceways, minimizing localized stress points. The robust cast iron housing acts as a strong foundational support, absorbing and distributing the forces exerted on the bearing assembly to the mounting structure, thereby preventing premature failure of both the bearing and the associated equipment. The combined strength of the bearing insert and housing ensures superior resistance to fatigue and shock loading, contributing significantly to the bearing's long service life and overall system reliability.
Vibration Control and Noise Reduction
The inherent material properties of cast iron play a pivotal role in the operational performance of this bearing unit, particularly concerning vibration and noise. Cast iron exhibits excellent damping characteristics due to its microstructure, which effectively dissipates vibrational energy. This damping capability reduces the transmission of operational vibrations from the rotating shaft through the bearing and into the machine structure. The result is a substantial reduction in both audible noise and mechanical stresses on adjacent components, leading to a smoother running system, improved operator comfort, and extended life for other machinery elements.
Precision Bore Diameter and Dimensional Accuracy
The precisely engineered 1.125-inch bore diameter of this flange bearing is critical for ensuring proper fit and function with compatible shafts. Maintaining tight manufacturing tolerances for the bore diameter guarantees that the shaft can be accurately inserted and securely locked, minimizing eccentricity and promoting balanced rotation. The dimensional accuracy across all components, from the bore to the overall height (3.16 inches), width (5.41 inches), and depth (1.59 inches), ensures interchangeability and facilitates seamless integration into existing and new machine designs. Specific diagrammatic dimensions such as Bi (1.500), G (0.50), I (0.70), and L (1.22) provide critical engineering data for designers to ensure precise spatial planning and interference-free operation.
Maintenance and Longevity
Integrated Lubrication System: Grease Fitting for Optimal Performance
A key feature contributing to the extended operational life and consistent performance of this flange bearing is the inclusion of a grease fitting, confirming its "Greasable (y/n): Yes" specification. This fitting allows for the direct injection of lubricant into the bearing, ensuring that the rolling elements and raceways are continuously bathed in a protective film. Proper lubrication is paramount for minimizing friction, dissipating heat, and preventing wear and corrosion within the bearing. Regular lubrication, according to recommended schedules, flushes out contaminants, replenishes the grease film, and significantly prolongs the bearing's service life, reducing the need for premature replacement.
The maintenance protocol should specify the type of lubricant (e.g., lithium-complex grease for high temperatures and loads) and the frequency of lubrication, which will vary based on application severity, operating speed, and environmental conditions. Adhering to these guidelines ensures optimal performance and prevents common failure modes associated with inadequate lubrication, such as pitting, spalling, and overheating.
Simplified Installation and Replacement Procedures
The design philosophy behind this flange bearing emphasizes ease of installation and maintenance. The standard 2-hole bolt pattern simplifies mounting onto flat surfaces, requiring only basic tools for secure attachment. The set screw locking mechanism allows for direct shaft insertion and securement without complex adapter sleeves or hydraulic tools, making field installation and replacements straightforward. This "simple installation and maintenance" aspect significantly reduces labor time and technical complexity, translating into lower operational costs and increased uptime for machinery. The precise bolt hole center-to-center dimension of 4.609 inches ensures compatibility with a broad range of industrial mounting plates and existing equipment.
Applications and Versatility
The 1-1/8 Inch Shaft Diameter Set Screw Style Flange Bearing is engineered for a diverse array of industrial and commercial applications where reliable rotational support is essential. Its robust construction and performance characteristics make it particularly well-suited for:
- Agricultural Machinery: Providing support for shafts in conveyors, balers, harvesters, and other farm equipment exposed to harsh environments and intermittent shock loads.
- Material Handling Systems: Integral to conveyor belts, rollers, and processing equipment in manufacturing plants, warehouses, and distribution centers.
- Construction Equipment: Supporting rotational components in mixers, compactors, and auxiliary equipment where durability and resistance to challenging conditions are critical.
- Pumps and Fans: Offering stable shaft support in industrial pumps, ventilation systems, and blowers where smooth, continuous operation is required.
- Food Processing Equipment: In certain configurations, these bearings can be found in equipment requiring robust support, provided environmental sealing and lubrication methods are appropriate for sanitary conditions.
- General Industrial Machinery: Widely used in various forms of processing machinery, packaging lines, and textile equipment where shafts require fixed-point support.
The combination of a carbon steel bearing insert, cast iron housing, self-aligning capability, and set screw locking mechanism makes this flange bearing a versatile and dependable choice for engineers and maintenance professionals seeking a high-performance, long-lasting solution for their power transmission requirements.
Technical Specifications in Context
The provided specifications are not merely numerical values; they are critical design parameters that inform selection, integration, and performance prediction:
- Bore Diameter (1.125 inches): Defines the exact shaft size the bearing is designed to accommodate, ensuring a snug fit necessary for the set screw to achieve optimal grip.
- Bolt Hole Center to Center (4.609 inches) and Bolt Size (0.500 inches), Bolt Hole Diameter (S = 0.625 inches): These dimensions are fundamental for mechanical integration, ensuring the bearing can be properly mounted and aligned with corresponding holes on a machine frame or bracket.
- Overall Dimensions (Depth 1.59 inches, Height 3.16 inches, Width 5.41 inches): These metrics are crucial for spatial planning, ensuring the bearing unit fits within the allocated design envelope of the machinery.
- Bi (1.500), G (0.50), I (0.70), L (1.22): These diagrammatic dimensions provide additional geometric data essential for detailed engineering drawings, assembly planning, and confirming component compatibility.
Understanding these specifications allows for precise engineering calculations regarding stress distribution, vibrational analysis, and overall system stability, reinforcing the professional application of this component.
Conclusion
The 1-1/8 Inch Shaft Diameter Set Screw Style Flange Bearing with a 2-Hole configuration stands as a testament to robust engineering and materials science. Its construction, featuring a driveline-grade carbon steel, self-aligning bearing insert encased within a high-strength cast iron housing, guarantees exceptional durability and performance under challenging operational conditions. The precision set screw locking mechanism ensures a positive, anti-slippage grip on the shaft, while the integrated grease fitting facilitates a comprehensive maintenance regimen, thereby extending the bearing's service life and minimizing total cost of ownership.
Designed for reliability and ease of installation, this flange bearing is an indispensable component in a wide spectrum of industrial and commercial applications. Its ability to accommodate slight misalignments, dampen vibrations, and withstand significant loads positions it as a preferred solution for engineers and operators prioritizing continuous, efficient, and low-maintenance rotational support. Buyers Products delivers a component that not only meets but often exceeds the rigorous demands of modern machinery, ensuring long-term operational excellence and contributing significantly to the overall productivity and safety of industrial systems.
