{"product_id":"7412-h7-series-end-yoke-7-8-inch-square-bore","title":"7412 - H7 Series End Yoke 7\/8 Inch Square Bore","description":"\u003cp\u003eBuyers Products H7 Series End Yoke with Square Bore is a strong, durable component for your flexible coupling needs. The yoke is compatible with other major manufacturers' medium duty driveline components. It comes in a variety of bore sizes and shapes to work with your system.  The yoke is made of forged steel for strength and durability. It works with Buyers Products NB7A U-joints to provide smooth and continuous torque transfer.    The H7 Series End Yoke is perfect for medium duty applications with the ability to handle up to 800 inch pounds of torque at 1,000 RPM (12 HP).\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse; width:100%; font-size:14px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eBore Dia\/Width (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e7\/8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eBore Type\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eSquare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align=\" left padding:6px border:1px solid background:\u003eCenter Line to End of Hub\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e2.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eEnd of Hub to Centerline of Set Screw Hole\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e0.625\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003ePlain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eHub Dia (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e2.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eJoint Angle\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eKeyway At\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eSquare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eKeyway Size (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eForged Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eSeries\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eH7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eSet Screw At\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border:1px solid #e5e7eb; background:#f9fafb;\"\u003eSet Screw Size\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e3\/8-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eComprehensive Technical Overview: H7 Series End Yoke with 7\/8 Inch Square Bore\u003c\/h2\u003e\u003cp\u003eThe Buyers Products H7 Series End Yoke, featuring a precise 7\/8 inch square bore, represents a critical component in the engineering of robust and efficient driveline systems. Engineered for medium-duty applications, this end yoke is meticulously designed to facilitate the smooth and continuous transmission of torque, acting as an essential interface between a power source or driven component and a universal joint (U-joint). Its specifications and material composition underscore its suitability for demanding industrial and mobile environments where reliability and durability are paramount.\u003c\/p\u003e\u003ch3\u003eAdvanced Material Science: The Strength of Forged Steel\u003c\/h3\u003e\u003cp\u003eAt the core of the H7 Series End Yoke's exceptional performance is its construction from high-grade forged steel. The forging process, a metallurgical technique involving the plastic deformation of metal at elevated temperatures, imparts superior mechanical properties compared to other manufacturing methods such as casting or machining from plate. During forging, the metal's grain structure is refined and aligned, conforming to the shape of the part and creating a continuous flow of grain that follows the contour of the yoke. This optimized grain flow significantly enhances the material's strength, toughness, and resistance to impact and fatigue stresses. Specifically, forged steel exhibits higher tensile strength, yield strength, and impact resistance, crucial attributes for components subjected to dynamic loads and torsional forces within a driveline. This inherent robustness ensures extended service life and reduced risk of premature failure, even under cyclic loading conditions characteristic of medium-duty power transmission applications. The choice of forged steel directly translates into a product that can withstand the rigors of continuous operation, minimizing downtime and maintenance requirements for the end-user.\u003c\/p\u003e\u003ch3\u003ePrecision Engineering: The 7\/8 Inch Square Bore Design\u003c\/h3\u003e\u003cp\u003eThe distinguishing feature of this particular H7 Series End Yoke is its 7\/8 inch square bore. The square bore configuration offers distinct advantages in specific power transmission scenarios. Unlike splined or keyed round bores, a square bore provides a direct, positive mechanical lock with a corresponding square shaft. This design is particularly effective in applications where high torque transfer is required without slippage, and where axial movement might be limited or unintended. The uniform contact area across the four faces of the square ensures an even distribution of torsional stresses, mitigating stress concentrations that could lead to wear or failure. The precision of the 7\/8 inch dimension ensures a snug fit with industry-standard square shafts, facilitating straightforward assembly and maintaining concentricity. The \"Keyway At: Square\" specification further emphasizes this direct engagement, indicating that the entire square bore acts as the keyway, maximizing the contact surface for torque transmission. This robust engagement mechanism is essential for maintaining rotational integrity and preventing any relative movement between the yoke and the shaft, which could otherwise lead to fretting corrosion or premature wear.\u003c\/p\u003e\u003ch3\u003eH7 Series: Standardized Performance for Medium-Duty Applications\u003c\/h3\u003e\u003cp\u003eThe designation \"H7 Series\" is not arbitrary; it signifies a specific set of design parameters, load ratings, and dimensional characteristics that align with industry standards for medium-duty driveline components. This standardization is critical for ensuring interoperability and interchangeability. The H7 Series is engineered to interface seamlessly with other major manufacturers' components designed to similar specifications, providing engineers and maintenance professionals with flexibility in sourcing and system design. This compatibility significantly simplifies replacement procedures and allows for integration into existing driveline architectures without extensive modification. The \"medium duty\" classification indicates that this yoke is optimized for applications requiring a balance of power transmission capacity, durability, and cost-effectiveness, without the excessive weight or cost associated with heavy-duty components, or the limited capacity of light-duty counterparts. This thoughtful classification ensures that the component is appropriately specified for its intended operational environment, providing optimal performance within its designed envelope.\u003c\/p\u003e\u003ch3\u003eTorque Capacity and Performance Metrics: 800 in-lbs at 1,000 RPM (12 HP)\u003c\/h3\u003e\u003cp\u003eThe specified torque capacity of 800 inch-pounds at 1,000 RPM, equating to 12 horsepower, is a critical performance metric for the H7 Series End Yoke. This rating defines the maximum continuous torsional load that the component can reliably transmit under specified rotational speeds without exceeding its material's yield strength or compromising its structural integrity over time. Understanding this specification is fundamental for proper system design and selection. For instance, in an application operating at a lower RPM, the available torque capacity might be higher, and conversely, at higher RPMs, heat generation and dynamic stresses might necessitate careful consideration. The 12 HP rating provides an alternative perspective on its power handling capability, allowing engineers to match the yoke to the output of various prime movers or the input requirements of driven equipment. It is imperative that the application's peak and continuous torque demands remain within these specified limits, ideally with an appropriate safety factor applied, to prevent overstressing the yoke and other driveline components. Exceeding these limits can lead to accelerated wear, fatigue failure, or catastrophic component breakdown. The ability to handle these loads reliably is a testament to the forged steel construction and precise engineering.\u003c\/p\u003e\u003ch3\u003eSeamless Integration with Buyers Products NB7A U-Joints\u003c\/h3\u003e\u003cp\u003eWhile the H7 Series End Yoke is designed for broad compatibility, its optimal performance is achieved when paired with Buyers Products NB7A U-joints. This specific pairing is engineered for synergistic operation, where the dimensions and tolerances of both components are meticulously matched to ensure smooth, efficient, and vibration-free torque transfer. The trunnion and bearing cup dimensions of the NB7A U-joint will precisely fit within the yoke's ears, providing the necessary articulation while minimizing play. Proper selection of the U-joint is crucial because an improperly matched U-joint can introduce excessive vibration, accelerated wear, or even failure due to misalignment or inadequate load capacity. The design integration between the H7 series yoke and the NB7A U-joint ensures that the joint angle (specified as 15 degrees) can be accommodated efficiently, allowing for angular misalignment between shafts while transmitting power. This design synergy guarantees the highest levels of operational efficiency, extended service life for both components, and reduced maintenance intervals, ultimately contributing to a lower total cost of ownership.\u003c\/p\u003e\u003ch3\u003eGeometric Precision and Driveline Architecture\u003c\/h3\u003e\u003cp\u003eThe detailed dimensional specifications are crucial for proper driveline design and assembly. The \"Center Line to End of Hub\" dimension of 2.50 inches, for example, dictates the effective length of the yoke from the U-joint centerline to the end where it engages with the shaft. This dimension is vital for calculating driveline length, shaft engagement depth, and ensuring adequate clearance within the system. The \"End of Hub to Centerline of Set Screw Hole\" at 0.625 inches pinpoints the location for securing the yoke to the shaft, ensuring that the set screw engages correctly with the shaft without compromising the structural integrity of the yoke hub. The \"Hub Dia (in.)\" of 2.00 inches provides the external diameter of the yoke's hub, which is important for clearance considerations in confined spaces and for determining the appropriate size of any external retaining collars or bearings if present. These precise measurements are not merely arbitrary numbers but are fundamental parameters that govern the mechanical fit, alignment, and dynamic performance of the entire driveline assembly. Adherence to these dimensions during installation is critical for preventing imbalances, vibrations, and premature wear in the system.\u003c\/p\u003e\u003ch3\u003eSecure Engagement: The Set Screw Mechanism\u003c\/h3\u003e\u003cp\u003eThe integration of a 3\/8-16 set screw, positioned \"At 4\" (likely indicating a position relative to a clock face or a specific datum), provides a secure and reliable method for axially locking the yoke onto the square shaft. The 3\/8-16 thread size indicates a robust fastening capability, capable of generating sufficient clamping force to resist axial movement and rotational slippage. Proper tightening of this set screw to the manufacturer's recommended torque specifications is essential for safe and effective operation. In applications where shock loads or severe vibrations are present, additional retaining mechanisms or thread-locking compounds may be considered to augment the security provided by the set screw. The placement \"At 4\" is optimized for accessibility during installation and maintenance, allowing for efficient tightening and inspection. This secure attachment mechanism ensures that the torque applied to the yoke is fully transmitted to the shaft without any relative motion, maintaining the integrity of the driveline. Regular inspection of the set screw for tightness is a recommended part of preventative maintenance for driveline systems.\u003c\/p\u003e\u003ch3\u003eDynamic Flexibility: The 15-Degree Joint Angle Capability\u003c\/h3\u003e\u003cp\u003eThe \"Joint Angle\" specification of 15 degrees indicates the maximum recommended operating angle for which this yoke, in conjunction with its compatible U-joint, is designed. Universal joints are inherently designed to accommodate angular misalignment between two rotating shafts, and the efficiency and longevity of the joint are directly related to the operating angle. While U-joints can typically operate at angles greater than 15 degrees, sustained operation at higher angles can lead to increased friction, heat generation, vibration, and significantly reduced bearing life due to increased fluctuating loads and non-uniform angular velocity. The 15-degree rating suggests an optimal balance between flexibility and durability for medium-duty applications. For scenarios requiring greater angular deflection, a double universal joint or a constant velocity (CV) joint might be necessary, but for typical medium-duty power transfer applications with moderate misalignment, the 15-degree joint angle is robust and efficient. Proper driveline design aims to minimize operating angles to extend the life of all components, including the end yoke and universal joint.\u003c\/p\u003e\u003ch3\u003eApplications of the H7 Series End Yoke\u003c\/h3\u003e\u003cp\u003eThe H7 Series End Yoke with a 7\/8 inch square bore is ideally suited for a diverse range of medium-duty industrial, agricultural, and mobile applications where reliable torque transfer and robust construction are non-negotiable. Its specifications make it particularly valuable in environments demanding consistent performance under varying load conditions. Typical applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgricultural Machinery:\u003c\/strong\u003e PTO shafts, mower drives, balers, spreaders, and other implements requiring robust power transmission from tractors to implements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Equipment:\u003c\/strong\u003e Auxiliary drives on compact loaders, trenchers, small mixers, and conveyor systems where medium power needs to be transmitted reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Conveyors:\u003c\/strong\u003e Drive systems for medium-capacity conveyor belts in manufacturing plants, warehouses, and assembly lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling Equipment:\u003c\/strong\u003e Drives for pallet jacks, utility carts, and specialized lifting equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized Vehicles:\u003c\/strong\u003e Auxiliary power units, accessory drives on municipal vehicles, utility trucks, and other medium-duty vocational vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump and Compressor Drives:\u003c\/strong\u003e Connecting motors to pumps or compressors in industrial settings where moderate power is transferred.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForestry Equipment:\u003c\/strong\u003e Chipper drives, log splitters, and other moderate-duty forestry machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Applications:\u003c\/strong\u003e Auxiliary drives for pumps, winches, or other deck machinery on smaller commercial or recreational vessels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe versatility and robust design of this end yoke ensure reliable operation across these varied and often challenging environments.\u003c\/p\u003e\u003ch3\u003eTechnical Considerations for Driveline Optimization\u003c\/h3\u003e\u003cp\u003eEffective driveline design extends beyond selecting individual components; it involves understanding their interaction within a system. When integrating the H7 Series End Yoke, engineers should consider:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical Speed Analysis:\u003c\/strong\u003e Ensuring that the operating speeds of the driveline do not coincide with its critical resonant frequencies to avoid excessive vibration and premature component failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Alignment:\u003c\/strong\u003e Precise alignment of connected shafts is paramount. While the U-joint accommodates angularity, minimizing static and dynamic misalignment reduces wear and energy losses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Balance:\u003c\/strong\u003e Especially in higher RPM applications, the entire driveline assembly should be dynamically balanced to prevent vibrations that can lead to noise, fatigue, and damage to bearings and seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Although the end yoke itself typically does not require lubrication beyond its interface with the shaft, proper and regular lubrication of the associated universal joint is critical for its longevity and efficient operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Factors:\u003c\/strong\u003e Consideration of operating temperature, exposure to contaminants (dust, moisture, corrosive agents), and vibration levels will influence material selection for seals and potential protective coatings. The plain finish of the forged steel may necessitate additional protection in highly corrosive environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAdhering to these principles ensures that the H7 Series End Yoke contributes to a driveline system that is not only powerful but also efficient, quiet, and exceptionally durable.\u003c\/p\u003e\u003ch3\u003eInstallation and Maintenance Protocols\u003c\/h3\u003e\u003cp\u003eProper installation is paramount to achieving the designed performance and longevity of the H7 Series End Yoke. Key steps include:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Preparation:\u003c\/strong\u003e Ensure the 7\/8 inch square shaft is clean, free of burrs, and within specified dimensional tolerances for a precise fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Assembly:\u003c\/strong\u003e Carefully slide the yoke onto the shaft, ensuring full engagement and proper orientation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Screw Securing:\u003c\/strong\u003e Torque the 3\/8-16 set screw to the manufacturer's specified value. Consider using a thread-locking compound for enhanced security in high-vibration applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU-joint Installation:\u003c\/strong\u003e Install the compatible Buyers Products NB7A U-joint into the yoke ears, ensuring that bearing caps are securely seated and retained (e.g., with snap rings).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Verification:\u003c\/strong\u003e After assembly, verify shaft alignment to ensure that the operating angle is within the recommended 15-degree limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Grease the U-joint according to its specific lubrication schedule and specifications.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eRegular preventative maintenance, including periodic inspection for wear, corrosion, and tightness of fasteners, along with routine lubrication of the universal joint, will significantly extend the service life of the entire driveline system and the H7 Series End Yoke itself.\u003c\/p\u003e\u003ch3\u003eThe Buyers Products Advantage\u003c\/h3\u003e\u003cp\u003eBuyers Products stands as a reputable manufacturer in the industrial and vehicle equipment sector, known for its commitment to engineering excellence and product reliability. The H7 Series End Yoke embodies this commitment, offering a product that not only meets but often exceeds industry expectations for quality and performance. By choosing Buyers Products, customers benefit from:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigorous Quality Control:\u003c\/strong\u003e Each component undergoes stringent testing to ensure dimensional accuracy, material integrity, and performance consistency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineering Expertise:\u003c\/strong\u003e Products are designed by experienced engineers with a deep understanding of power transmission dynamics and real-world application demands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeability:\u003c\/strong\u003e Design philosophy ensures compatibility with a broad range of existing systems, offering flexibility and ease of integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Support:\u003c\/strong\u003e Access to comprehensive technical documentation and customer support to assist with selection, installation, and troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis dedication ensures that the H7 Series End Yoke provides a dependable solution for critical power transfer needs, minimizing operational risks and maximizing productivity.\u003c\/p\u003e\u003ch3\u003eConclusion\u003c\/h3\u003e\u003cp\u003eThe Buyers Products H7 Series End Yoke with a 7\/8 inch square bore is a technically sophisticated and robust component designed to meet the rigorous demands of medium-duty power transmission applications. Its forged steel construction, precise square bore, defined torque capacity, and compatibility with standardized universal joints like the NB7A series, collectively ensure exceptional durability, efficiency, and reliability. By adhering to industry-leading design principles and manufacturing processes, this end yoke provides a vital link in driveline systems across various sectors, from agriculture and construction to industrial automation. When specified and installed correctly, the H7 Series End Yoke delivers unparalleled performance, contributing significantly to the operational integrity and longevity of any machinery it powers, making it an indispensable choice for engineers and professionals seeking superior driveline components.\u003c\/p\u003e","brand":"buyersproductscompany","offers":[{"title":"Default Title","offer_id":62449339466099,"sku":"7412","price":20.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/9513\/9187\/files\/H7_20Series_20End_20Yoke_profile_cf17bd8a-a918-4d96-a781-058e71951f92.jpg?v=1768840691","url":"https:\/\/titustrucksaccessories.com\/products\/7412-h7-series-end-yoke-7-8-inch-square-bore","provider":"Titus Trucks Accessories ","version":"1.0","type":"link"}