{"product_id":"74481-h7-series-end-yoke-7-8-13-inch-spline-bore","title":"74481 - H7 Series End Yoke 7\/8-13 Inch Spline Bore","description":"\u003cp\u003eBuyers Products H7 Series End Yoke with Spline Bore is a strong, durable component for your flexible coupling needs. The yoke is compatible with other major manufacturers' medium duty driveline components.   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\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 -13 SP.\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;\"\u003eSpline\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;\"\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;\"\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;\"\u003eKeyway Size (in.)\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eSpline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:6px 10px; border=\" solid background:\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;\"\u003e3\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\u003eAdvanced Technical Overview: H7 Series End Yoke with 7\/8-13 Inch Spline Bore\u003c\/h2\u003e\u003cp\u003eThe Buyers Products H7 Series End Yoke, featuring a precisely engineered 7\/8-13 inch spline bore, represents a pinnacle of robust design and manufacturing excellence in the realm of power transmission components. As an indispensable element within a flexible coupling system, this end yoke is meticulously crafted to facilitate the transfer of rotational torque from a primary shaft to a universal joint, thereby enabling angular misalignment and changes in driveline length while maintaining consistent power flow. Its designation as part of the H7 Series underscores its adherence to a specific standard of performance and dimensional compatibility, positioning it as a reliable and high-performance solution for a broad spectrum of medium-duty industrial and vehicular applications.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003ePrecision Engineering of the Spline Bore\u003c\/h3\u003e\u003cp\u003eThe defining feature of this end yoke is its 7\/8-13 inch spline bore. This specification is crucial for establishing a secure, high-torque connection with a mating splined shaft. The \"7\/8\" refers to the major diameter of the spline, representing the largest diameter across the spline teeth, while \"13\" indicates the number of splines machined into the bore. Unlike keyway connections, which concentrate stress at a single point, a spline distributes torque across multiple teeth, significantly enhancing the load-bearing capacity and fatigue life of the connection. This multi-tooth engagement minimizes stress concentrations, reduces wear, and prevents backlash, which is critical for smooth and quiet operation, especially under dynamic loading conditions. Furthermore, spline connections offer superior concentricity, ensuring the rotating components remain precisely aligned, thereby mitigating imbalances and vibrations that could otherwise compromise driveline integrity and operational efficiency. The inherent self-centering capability of a well-engineered spline contributes to easier assembly and disassembly compared to interference fits, while still providing a robust, non-slip interface essential for transmitting intermittent or shock loads characteristic of medium-duty operations.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eMaterial Science: The Advantage of Forged Steel\u003c\/h3\u003e\u003cp\u003eThe selection of forged steel as the primary material for the H7 Series End Yoke is a deliberate engineering choice that underpins its exceptional strength and durability. Forging is a manufacturing process that involves shaping metal through localized compressive forces, typically at elevated temperatures (hot forging). This process refines the grain structure of the steel, aligning the material's internal grain flow with the component's contours. This optimized grain flow results in a finished product with superior tensile strength, yield strength, and fatigue resistance compared to components produced by casting or machining from simple bar stock. Cast parts, while cost-effective, often suffer from internal voids, porosity, and uncontrolled grain structures, making them susceptible to brittle fracture under stress. Machined components, conversely, can sever the natural grain flow of the material, creating weak points. Forged steel, however, ensures maximum material density and homogeneity, eliminating internal defects and enhancing the yoke's ability to withstand the rigorous torsional, bending, and shear stresses encountered in continuous power transmission applications. The inherent toughness of forged steel also contributes significantly to the component's impact resistance, safeguarding against sudden shock loads and extending its operational lifespan in demanding environments.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eOptimized Performance for Medium-Duty Applications\u003c\/h3\u003e\u003cp\u003eThe H7 Series End Yoke is engineered specifically for medium-duty applications, demonstrating a robust capacity to handle up to 800 inch-pounds of torque at 1,000 RPM, which translates to approximately 12 horsepower. This performance rating is a critical metric for engineers and operators, indicating the sustained operational capability of the component within its intended design envelope. \"Medium-duty\" typically encompasses a wide range of machinery and vehicles such as light-to-medium commercial trucks, utility vehicles, agricultural equipment (e.g., small tractors, PTO drives), industrial conveyors, and various auxiliary power take-off (PTO) systems. In these applications, the driveline components are exposed to variable loads, intermittent shock, and continuous operation, demanding components that offer a balance of strength, durability, and cost-effectiveness. The 800 in-lb torque rating signifies that the yoke can reliably transmit substantial rotational force, ensuring consistent power delivery without premature deformation or failure. The accompanying RPM and HP figures further define the dynamic operating conditions under which this torque capacity is maintained, allowing for precise system design and component selection to prevent overloading and ensure longevity. This precise engineering ensures that the H7 Series yoke contributes to the overall efficiency and reliability of the power transmission system, minimizing downtime and maintenance requirements.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eSeamless Integration and Driveline Dynamics\u003c\/h3\u003e\u003cp\u003eA key attribute of the H7 Series End Yoke is its compatibility with other major manufacturers' medium-duty driveline components. This interchangeability offers significant advantages in terms of sourcing, maintenance, and design flexibility, allowing for seamless integration into existing systems or new configurations without proprietary lock-ins. Furthermore, its designed synergy with Buyers Products NB7A U-joints is critical for achieving optimal system performance. The yoke's ears are precisely machined to accept the bearing caps of the NB7A U-joint, ensuring a tight, concentric fit that is essential for minimizing vibration and maximizing the lifespan of both components. The integrity of this connection directly impacts the smoothness and continuity of torque transfer throughout the driveline. By providing a stable platform for the U-joint, the end yoke helps to mitigate torsional vibrations and dynamic imbalances, which can otherwise lead to premature wear of bearings, seals, and other driveline elements. The stated Joint Angle of 15 degrees is a crucial operational parameter. While the yoke itself is a static component, this specification refers to the maximum recommended operating angle for the universal joint it accommodates. Operating a U-joint within its specified angular limits is paramount for efficiency and longevity, as exceeding these limits can induce significant speed fluctuations (non-uniform velocity), increased heat generation, accelerated wear on the cross and bearings, and heightened stress on surrounding components. Proper phasing of universal joints within a driveline system, coupled with adherence to the specified joint angle, ensures uniform velocity ratios and optimal power transmission.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eDetailed Technical Specifications Analysis\u003c\/h3\u003e\u003cp\u003eThe following detailed technical specifications provide a comprehensive understanding of the H7 Series End Yoke's dimensional and functional attributes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter\/Width (in.): 7\/8 -13 SP.\u003c\/strong\u003e This fundamental dimension defines the precise interface for the mating shaft. The 7\/8-inch major diameter, combined with 13 splines, creates a robust, multi-contact surface area for torque transfer, far superior to single-point keyway connections in terms of load distribution and resistance to rotational slip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Type: Spline.\u003c\/strong\u003e As discussed, the spline bore offers superior torque capacity, fatigue resistance, and concentricity, making it ideal for dynamic applications where reliability and smooth operation are paramount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Line to End of Hub (in.): 2.50.\u003c\/strong\u003e This critical dimensional datum, measured from the centerline of the universal joint's bearing bores to the end face of the yoke's hub, is vital for driveline length calculations. It ensures proper shaft engagement depth and overall driveline component spacing, preventing interference and allowing for necessary slip-yoke travel if applicable in the complete assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd of Hub to Centerline of Set Screw Hole (in.): 0.625.\u003c\/strong\u003e This precise measurement dictates the axial positioning of the set screw, ensuring it engages optimally with a corresponding recess or flat on the mating shaft. Proper engagement of the set screw is crucial for preventing axial movement and rotation of the yoke on the shaft, particularly under vibrating or dynamic loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish: Plain.\u003c\/strong\u003e A plain finish indicates that the forged steel component has been left in its natural state after machining, without additional coatings like paint or plating. This finish is cost-effective and suitable for applications where corrosion resistance is not a primary concern or where the end-user may apply a custom finish appropriate for their specific environmental conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Diameter (in.): 2.00.\u003c\/strong\u003e The 2.00-inch hub diameter provides ample material around the spline bore and set screw hole, ensuring structural integrity and robust clamping force. It also dictates clearance requirements within the assembly, influencing the overall compactness of the driveline.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoint Angle: 15.\u003c\/strong\u003e This specification, as previously detailed, refers to the maximum recommended operating angle for the universal joint that mates with this yoke. Adhering to this angle is essential for minimizing driveline vibration, heat generation, and premature wear, thereby extending the service life of all connected components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyway At: - (N\/A).\u003c\/strong\u003e As this yoke features a spline bore, a traditional keyway is not present, reinforcing the spline's superior method of torque transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyway Size (in.): Spline.\u003c\/strong\u003e This reiterates the use of a spline for rotational coupling, rather than a conventional key.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: Forged Steel.\u003c\/strong\u003e Confirms the use of high-strength forged steel, providing exceptional durability and resistance to wear and fatigue in demanding medium-duty applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries: H7.\u003c\/strong\u003e Designates this component as part of the H7 Series, indicating its specific design parameters and ensuring compatibility within this product family and with comparable industry standards for medium-duty driveline components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Screw At: 3.\u003c\/strong\u003e This indicates the radial position of the set screw hole, typically referring to a 3 o'clock orientation when viewing the end of the hub. This standardized placement aids in consistent installation and accessibility for tightening or removal during maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Screw Size: 3\/8-16.\u003c\/strong\u003e The set screw utilizes a standard 3\/8-16 UNC (Unified National Coarse) thread, which ensures commonality of tooling and ease of replacement. Proper torque application for this set screw is crucial to securely fasten the yoke to the shaft, preventing relative rotation or axial displacement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eInstallation, Maintenance, and Longevity\u003c\/h3\u003e\u003cp\u003eProper installation and routine maintenance are paramount to realizing the full potential and extended service life of the H7 Series End Yoke. Prior to installation, the mating shaft should be thoroughly cleaned and inspected for burrs or damage that could impede spline engagement. A light coating of anti-seize compound or spline grease on the shaft splines can facilitate assembly and future disassembly, while also mitigating fretting corrosion. The yoke must be correctly indexed and fully seated onto the shaft, ensuring complete spline engagement. The 3\/8-16 set screw must then be torqued to the manufacturer's specified value to provide a secure, vibration-resistant connection. Over-tightening can damage the set screw or hub, while under-tightening can lead to looseness, wear, and potential failure. During routine maintenance checks of the overall driveline system, the end yoke should be inspected for any signs of wear, pitting, cracks, or corrosion, particularly around the spline bore and U-joint bearing cap bores. Any excessive play between the yoke and the U-joint or between the yoke and the shaft indicates potential wear and necessitates further investigation and possible replacement of components. Adhering to these best practices for installation and proactive maintenance significantly contributes to the longevity of the H7 Series End Yoke and the entire driveline system, reducing operational costs and unplanned downtime.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eUnwavering Quality Assurance and Reliability\u003c\/h3\u003e\u003cp\u003eBuyers Products is renowned for its unwavering commitment to quality and durability, a philosophy deeply embedded in the design and manufacture of the H7 Series End Yoke. Each component undergoes rigorous quality assurance protocols, from the initial selection of high-grade forged steel to precision machining and final inspection. These processes include dimensional accuracy checks, material composition verification, and, for certain batches, destructive testing such as torsional fatigue tests to simulate extreme operating conditions. This stringent quality control ensures that every H7 Series End Yoke not only meets but often exceeds industry standards for strength, performance, and reliability. Investing in a Buyers Products H7 Series End Yoke translates directly into enhanced operational safety, reduced maintenance cycles, and a lower total cost of ownership over the component's lifespan. Its robust construction and precise engineering provide peace of mind, knowing that critical power transmission is handled by a component designed for enduring performance in the most demanding medium-duty applications.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eConclusion\u003c\/h3\u003e\u003cp\u003eThe H7 Series End Yoke with its 7\/8-13 inch spline bore from Buyers Products is an exemplary component for medium-duty power transmission systems. Its foundation in forged steel, combined with a meticulously engineered spline bore, guarantees superior strength, durability, and resistance to dynamic stresses. With a proven capacity to handle 800 inch-pounds of torque at 1,000 RPM, seamless compatibility with other major manufacturers' driveline components, and optimized performance when paired with Buyers Products NB7A U-joints, this end yoke stands as a testament to precision engineering. It represents an intelligent choice for engineers, mechanics, and procurement specialists seeking a reliable, high-performance solution that delivers sustained operational excellence and minimizes the total cost of ownership in demanding medium-duty environments.\u003c\/p\u003e","brand":"buyersproductscompany","offers":[{"title":"Default Title","offer_id":62449339793779,"sku":"74481","price":19.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/9513\/9187\/files\/H7_20Series_20End_20Yoke_profile_ec736805-9dce-4e77-be78-9be223562968.jpg?v=1768840694","url":"https:\/\/titustrucksaccessories.com\/products\/74481-h7-series-end-yoke-7-8-13-inch-spline-bore","provider":"Titus Trucks Accessories ","version":"1.0","type":"link"}