B22329 - B1310 Series Flange Yoke 3-1/8 Inch Diameter 4-Bolt Hole Pattern

Buyers Products B1310 Series Flange Yoke works seamlessly with heavy duty PTO driveline components in order to deliver reliable flexible coupling. The yoke is compatible with other major manufacturers' heavy duty driveline components. It comes in two different sizes and bore types to work with your system. The yoke is made of forged steel for strength and durability. It works with Buyers Products 5153XBA U-joint to provide smooth and continuous torque transfer. The B1310 Series Flange Yoke is perfect for heavy duty applications with the ability to handle up to 1560 inch pounds of torque at 1000 RPM continuous duty (approximately 25 HP).

Specifications

Buyers Products B1310 Series Flange Yoke: Precision Engineering for Heavy-Duty Driveline Applications

The Buyers Products B1310 Series Flange Yoke represents a pinnacle of precision engineering and robust construction, meticulously designed to serve as a critical component within demanding power take-off (PTO) driveline systems. This flange yoke facilitates the essential connection between a rotating power source, such as a PTO unit or hydraulic pump, and a universal joint (U-joint), which in turn transmits rotational force to an driven implement or axle. In the realm of heavy-duty machinery, where consistent and reliable torque transfer is paramount, the B1310 Series stands out for its structural integrity, dimensional accuracy, and exceptional performance characteristics, making it an indispensable element for a wide array of commercial, agricultural, and industrial applications.

Fundamental Role in Power Transmission

A driveline system, particularly in heavy-duty vehicles and equipment, relies on a series of interconnected components to transmit mechanical power efficiently and reliably from an engine or motor to a driven component. The flange yoke is a pivotal interface within this system. It mounts directly to a flanged output, typically from a PTO, gearbox, or differential, and provides the necessary ears to house the bearing cups of a U-joint. This specific B1310 Series flange yoke is engineered for seamless integration with heavy-duty PTO driveline components, ensuring that power is transferred effectively, even under dynamic and challenging operational conditions. Its design guarantees a secure and rigid connection, minimizing backlash and maximizing the lifespan of the entire driveline assembly.

Advanced Material Science: Cast Steel Construction

The durability and performance of a driveline component are fundamentally tied to its material composition and manufacturing process. The B1310 Series Flange Yoke is expertly crafted from high-grade cast steel. While some components benefit from the enhanced grain structure and impact resistance of forged steel, cast steel offers significant advantages in specific applications, particularly for complex geometries and cost-effectiveness in certain production volumes. The casting process allows for the creation of intricate shapes with minimal waste, which is beneficial for components like flange yokes that feature precise ear spacing, bolt patterns, and pilot diameters. High-quality cast steel provides an excellent balance of tensile strength, yield strength, and toughness, making it highly resistant to the torsional stresses and cyclical loading inherent in heavy-duty power transmission. Furthermore, cast steel possesses inherent damping properties, which can help absorb vibrations and mitigate shock loads, contributing to smoother operation and extended component life. The careful selection of cast steel for the B1310 Series underscores a commitment to delivering a product that offers both structural robustness and optimized performance characteristics for demanding environments.

Precision Dimensional Specifications and Design Integrity

The efficacy of a flange yoke hinges on its precise adherence to critical dimensions, ensuring proper fitment, alignment, and optimal performance within the driveline assembly. The B1310 Series is engineered with meticulous attention to detail, as evidenced by its comprehensive specifications:

• Bolt Circle Diameter (BCD): 3.125 inches (3-1/8 inch): This precise BCD is crucial for ensuring compatibility with standard heavy-duty PTO outputs and other flanged connections. A consistent and accurate bolt circle diameter is essential for uniform load distribution across the mounting bolts, preventing stress concentrations and ensuring a secure, concentric attachment to the mating flange. The specified 4-bolt hole pattern further reinforces this secure connection, distributing the forces evenly for reliable operation.
• Bolt Circle Spacing: 80 mm (Implied by 3.125" BCD): While the table lists 80, this typically refers to the Bolt Circle Diameter in millimeters if the primary unit is metric, or it could refer to a different spacing metric. However, given the BCD of 3.125 inches, this value might be an alternative metric representation or a misinterpretation. For consistency, we adhere to the 3.125-inch BCD as the definitive dimension for the 4-bolt pattern.
• Bolt Hole Diameter: 0.388 inches: The diameter of the bolt holes is precisely sized to accommodate standard heavy-duty fasteners, ensuring a snug fit that minimizes play and maximizes clamping force. This precision is vital for maintaining the integrity of the bolted connection, especially under conditions of high torque and vibration.
• Face to Pin Center: 1.375 inches: This critical dimension dictates the overall length and operating angle of the driveline. Accurate Face to Pin Center (FPC) measurement is essential for proper driveline design, allowing engineers to calculate working angles and ensuring that the U-joint operates within its specified deflection limits. Incorrect FPC can lead to premature U-joint wear, vibration, and driveline failure.
• Flange Diameter: 3.875 inches: The overall diameter of the flange provides sufficient surface area for robust mounting, contributing to the structural stability of the connection and accommodating the necessary bolt pattern without compromising material integrity.
• Pilot Diameter: 2.375 inches: The pilot diameter is a machined concentric surface designed to precisely locate the flange yoke relative to the mating component. A tight pilot fit is paramount for ensuring perfect concentricity, eliminating radial run-out, and significantly reducing vibrations and dynamic imbalances throughout the driveline. This precision piloting is a cornerstone of the B1310 Series' ability to deliver smooth and continuous torque transfer.
• Pin Hole Diameter: 1.063 inches: This dimension specifies the bore through which the universal joint cross journal passes, typically interfacing with the U-joint bearing cups. Its accuracy ensures a proper, interference-free fit for the U-joint, crucial for smooth articulation and long service life.
• Yoke Diameter: 3.469 inches: This refers to the overall maximum diameter of the yoke ears themselves, providing an indication of the component's robust sizing and strength, while also informing clearance considerations within the application environment.
• Finish: Plain: The "Plain" finish signifies that the yoke is supplied in its as-cast or as-machined state, without additional surface coatings like paint or plating. This approach offers flexibility to the end-user or system integrator, allowing for application-specific surface treatments such as primers, paints, or specialized corrosion-resistant coatings to be applied as dictated by the operational environment. It also ensures that critical mating surfaces maintain their unadulterated machined precision.

Optimized Performance: Torque Capacity and HP Rating

The Buyers Products B1310 Series Flange Yoke is engineered for impressive performance, capable of handling substantial power requirements. It is rated to manage up to 1560 inch-pounds of torque at 1000 RPM under continuous duty. This translates to approximately 25 horsepower (HP). Understanding these specifications is critical for proper system design and component selection:

• Torque Capacity (1560 in-lbs): Torque is the rotational force that the component can transmit. 1560 inch-pounds represents the maximum twisting force the yoke can reliably handle. This figure is critical for ensuring that the component will not yield or fracture under the operational loads of the attached machinery.
• Rotational Speed (1000 RPM): Revolutions per minute (RPM) indicate the speed at which the component is designed to operate. The combination of high torque at a moderate RPM demonstrates the yoke's suitability for heavy-duty applications that often involve significant loads at relatively lower speeds, typical of many PTO-driven implements.
• Continuous Duty Rating: This specification is paramount. "Continuous duty" means the yoke is designed to sustain this level of torque and RPM for extended periods without overheating, premature wear, or failure. This distinguishes it from intermittent duty ratings, which apply to components designed for short bursts of high power. A continuous duty rating provides assurance of long-term reliability in demanding operational cycles.
• Horsepower (25 HP): Horsepower is a measure of mechanical power. The relationship between torque, RPM, and HP is fundamental (HP = (Torque in lb-ft * RPM) / 5252). Converting 1560 in-lbs to lb-ft (1560/12 = 130 lb-ft), we can confirm the horsepower calculation: (130 lb-ft * 1000 RPM) / 5252 ≈ 24.75 HP. This rating signifies that the B1310 Series can capably transmit power levels suitable for a wide range of heavy-duty auxiliary equipment, such as hydraulic pumps, generators, compressors, and specialized implements.

The ability of this flange yoke to seamlessly integrate with the Buyers Products 5153XBA U-joint is a testament to its design compatibility and engineered system performance. The U-joint, with its cross and bearing cups, provides the necessary flexibility to accommodate angular misalignment and changes in driveline length during operation, while the robust yoke provides the strong, stable foundation for these movements, ensuring smooth and continuous torque transfer without excessive vibration or binding.

Universal Compatibility and System Versatility

A key advantage of the B1310 Series Flange Yoke is its inherent compatibility with other major manufacturers' heavy-duty driveline components. This interchangeability is critical in the heavy-duty sector, where equipment fleets often comprise diverse brands and models. Standardization of driveline components, often adhering to industry standards such as SAE, ensures that replacement parts are readily available and integration into existing systems is straightforward. This cross-compatibility simplifies maintenance, reduces downtime, and offers greater flexibility in system design and repair. Furthermore, the mention that the series "comes in two different sizes and bore types to work with your system" indicates the flexibility within the B1310 Series, offering tailored solutions for diverse power transmission requirements beyond the specific configuration detailed in the specifications. This modularity allows customers to select the precise flange yoke variant that perfectly matches their unique application and existing driveline architecture.

Diverse Heavy-Duty Applications

The robust construction and high-performance capabilities of the B1310 Series Flange Yoke make it an ideal choice for a broad spectrum of heavy-duty applications where reliable power transmission is non-negotiable. These include, but are not limited to:

• Commercial Trucking: Essential for dump trucks, refuse vehicles, utility trucks, and snowplows that utilize PTOs to power hydraulic pumps for tipping beds, compactors, aerial lifts, and other auxiliary equipment.
• Agricultural Machinery: Integral in tractors and various implements (e.g., sprayers, spreaders, balers) where PTOs drive attachments, requiring resilient components to withstand the rigors of farm work.
• Construction Equipment: Found in concrete mixers, excavators, loaders, and road maintenance vehicles, powering auxiliary functions like hydraulic systems, water pumps, or specialized attachments.
• Industrial Machinery: Utilized in static industrial setups that require power transmission from motors to pumps, compressors, conveyors, or other process equipment, particularly in environments with high torque demands.
• Marine Auxiliary Drives: For powering auxiliary equipment on commercial vessels or specialized boats, such as bilge pumps, generators, or winches.
• Specialty Vehicles: Applications in fire trucks for pump drives, or other custom-built heavy-duty vehicles requiring reliable power take-off.

In each of these scenarios, the B1310 Series Flange Yoke ensures the vital link for power transfer, enabling the effective operation of heavy machinery and contributing to productivity and operational efficiency.

Installation, Maintenance, and Longevity

To maximize the lifespan and ensure the optimal performance of the B1310 Series Flange Yoke and the entire driveline system, proper installation and routine maintenance are paramount. Key considerations include:

• Precision Alignment: Correct alignment of the flange yoke with the mating component is crucial. Misalignment can induce excessive stress on the U-joint, bearings, and mounting bolts, leading to premature wear, vibration, and component failure. Utilizing proper tools and techniques to ensure concentricity and angular alignment is essential.
• Secure Fastening: All mounting bolts must be torqued to the manufacturer's specified values. Under-torquing can lead to loose connections and fretting corrosion, while over-torquing can damage fasteners or the yoke itself.
• U-Joint Assembly: When installing the U-joint, ensuring proper seating of the bearing cups within the yoke ears and securing them with the appropriate retaining clips is vital for smooth articulation and load distribution.
• Regular Inspection: Periodic inspection of the flange yoke for signs of wear, cracks, corrosion, or deformation is recommended. Checks should also include the integrity of the bolted connections and the condition of the mating U-joint.
• Lubrication: While the flange yoke itself does not typically require lubrication, the associated U-joint components do. Ensuring the U-joint bearings are adequately lubricated according to manufacturer recommendations will significantly extend the life of the entire assembly, reducing friction and heat generation.
• Environmental Protection: Although the "Plain" finish allows for user-defined coatings, protecting the cast steel from corrosive elements, especially in harsh operational environments (e.g., road salt, chemicals, marine air), is essential for long-term durability.

By adhering to these best practices, operators can ensure that the B1310 Series Flange Yoke delivers its full potential in terms of reliability, performance, and an extended service life, ultimately contributing to the overall efficiency and longevity of the heavy-duty equipment it serves.

Buyers Products: Commitment to Quality and Reliability

The B1310 Series Flange Yoke is a testament to Buyers Products' unwavering commitment to engineering excellence and manufacturing quality. Every component is subjected to rigorous quality control processes, from material selection and casting to precision machining and final inspection. This dedication ensures that each flange yoke meets stringent industry standards and delivers the consistent performance expected by professionals in heavy-duty sectors. Choosing Buyers Products means investing in a component that is designed for maximum uptime, minimal maintenance, and dependable operation in the most challenging applications. The B1310 Series embodies the brand's reputation for providing robust, high-performance solutions that heavy-duty industries can rely upon.