{"product_id":"tsa760-h7-1-1-4-inch-tubular-shaft-assembly-60-inch-overall-length","title":"TSA760 - H7 1-1\/4 Inch Tubular Shaft Assembly 60 Inch Overall Length","description":"\u003cp\u003eBuyers Products H7 1-1\/4 In. Tubular Shaft Assembly can fulfill a variety of coupling applications due to its customizable length and medium duty torque rating. Torque transfer is smooth and continuous. The assembly comes to you unwelded so that it can be easily cut to length. Buy as a whole assembly, or choose the component that will fulfill your needs. The tubular shaft assembly includes a slip yoke and splined stub kit, two journal assemblies, and tube and weld yoke. Assembly can be used with a midship stub in order to extend the coupling.\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;\"\u003eCenter of Journal Assembly to Center of Journal Assembly Length\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e55.0\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;\"\u003eJournal Assembly Part Number\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e5170BXA\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;\"\u003eOverall Length\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e60.00\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;\"\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;\"\u003eSlip Yoke Part Number\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e7381\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;\"\u003eStub Shaft Part Number\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eSS\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;\"\u003eTube and Weld Yoke Length\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003e46.5\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;\"\u003eTube and Weld Yoke Part Number\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #e5e7eb;\"\u003eTS760\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eAdvanced Technical Overview: Buyers Products H7 1-1\/4 Inch Tubular Shaft Assembly\u003c\/h2\u003e\u003cp\u003eThe Buyers Products H7 1-1\/4 Inch Tubular Shaft Assembly, with an overall length of 60 inches, represents a meticulously engineered component designed to facilitate robust and efficient torque transmission across diverse mechanical systems. As a critical element within a driveline system, this assembly is engineered to bridge rotational gaps, accommodate angular misalignments, and manage axial length variations while ensuring seamless and continuous power flow. Its modular design, featuring an unwelded configuration, provides unparalleled flexibility for integration into custom applications, enabling precise adaptation to specific operational requirements and structural envelopes. The H7 series designation signifies adherence to established performance standards, positioning this assembly as a reliable solution for medium-duty coupling scenarios where sustained performance and durability are paramount.\u003c\/p\u003e\u003ch3\u003eDriveline System Fundamentals and the Role of the Tubular Shaft Assembly\u003c\/h3\u003e\u003cp\u003eA driveline system is a complex arrangement of components responsible for transmitting rotational power from a prime mover (e.g., an engine or motor) to a driven component (e.g., an axle, pump, or conveyor). At its core, the tubular shaft assembly serves as the primary conduit for this torque transfer. Its design must effectively manage not only the torsional forces inherent in power transmission but also dynamic factors such as angular velocity variations, axial thrusts, and vibrations. The integrity and performance of the entire mechanical system are profoundly dependent on the quality and appropriate specification of its driveline components. The H7 1-1\/4 inch tubular shaft assembly is purpose-built to meet these stringent demands, offering a balanced combination of strength, flexibility, and operational efficiency within its medium-duty classification.\u003c\/p\u003e\u003cp\u003eThe tubular construction of the shaft itself is a key engineering decision. A tubular shaft, in contrast to a solid shaft of equivalent outer diameter, offers a superior strength-to-weight ratio. This design optimizes the polar moment of inertia for a given material volume, allowing it to resist torsional stresses more effectively with reduced mass. The hollowing out concentrates material further from the neutral axis, where it contributes most to torsional stiffness. This reduction in mass is crucial for minimizing rotational inertia, which enhances system responsiveness and reduces energy losses, while simultaneously decreasing the overall weight of the vehicle or machinery, contributing to improved fuel efficiency or operational costs. The specified 1-1\/4 inch diameter refers to a critical dimension that influences both the torsional strength and compatibility with other driveline components, particularly the yokes.\u003c\/p\u003e\u003ch3\u003eDetailed Analysis of Key Components\u003c\/h3\u003e\u003ch4\u003eJournal Assemblies (Universal Joints)\u003c\/h4\u003e\u003cp\u003eThe H7 assembly includes two journal assemblies, specified by part number 5170BXA. These are precisely manufactured universal joints (U-joints), the fundamental mechanism for accommodating angular misalignment between connected shafts. Each journal assembly consists of a cross-shaped body (the spider) with four trunnions, upon which needle roller bearings are seated within bearing cups. These cups are pressed into the bores of the yokes, allowing for angular articulation while maintaining a robust connection for torque transfer. The selection of needle roller bearings is critical as they provide high load capacity, low friction, and excellent service life, particularly under oscillating or intermittent motion. The integrity of the bearing seals is also paramount in preventing contamination and retaining lubrication, which are vital for extending the operational life of the U-joint.\u003c\/p\u003e\u003cp\u003eThe proper phasing of these universal joints is a critical aspect of driveline design to ensure smooth and continuous torque transfer. When two U-joints are used in series, their yokes must be oriented correctly (typically in phase or 90 degrees out of phase, depending on the application) to cancel out the inherent angular velocity fluctuations produced by a single U-joint operating at an angle. This ensures that the output shaft rotates at a constant angular velocity, matching the input, thereby preventing torsional vibrations that could lead to noise, premature wear, and structural fatigue throughout the system. The 55.0-inch \"Center of Journal Assembly to Center of Journal Assembly Length\" specification refers to the precise distance between the rotational centers of these two U-joints, a critical parameter for driveline angle calculations and proper system geometry.\u003c\/p\u003e\u003ch4\u003eSlip Yoke and Splined Stub Kit\u003c\/h4\u003e\u003cp\u003eThe assembly incorporates a slip yoke (part number 7381) and a splined stub kit (part number SS), which together form a crucial mechanism for accommodating axial length changes within the driveline. In many applications, such as vehicle suspensions or dynamic industrial machinery, the distance between the power source and the driven component can vary during operation. The slip yoke, typically connected to the transmission or transfer case, features internal splines that mate with the external splines of the stub shaft. This splined interface allows for controlled telescoping action, enabling the driveline to lengthen or shorten smoothly without disengaging torque transfer. The precise machining of these splines is essential to minimize backlash, prevent binding, and ensure efficient power transmission while allowing for unrestricted axial movement. Lubrication of the splined interface is also vital to prevent fretting corrosion and ensure smooth operation over the operational lifespan.\u003c\/p\u003e\u003ch4\u003eTube and Weld Yoke\u003c\/h4\u003e\u003cp\u003eThe \"Tube and Weld Yoke\" component (part number TS760) is the central structural element of the driveline shaft. With a length of 46.5 inches, this component provides the main torsional strength and rigidity to the assembly. It consists of the tubular shaft itself, with one end pre-fitted with a weld yoke. The weld yoke is specifically designed to be permanently attached to the tubular shaft via a welding process. This weld yoke features bores for mounting the bearing cups of one of the journal assemblies. The material selection for the tube is typically high-strength steel, often cold-drawn or hot-rolled, chosen for its yield strength, fatigue resistance, and weldability. The precise concentricity and straightness of the tube are critical to prevent dynamic imbalance, which can lead to severe vibrations at operational speeds. The unwelded nature of the opposite end of the tube and the inclusion of a separate weld yoke in the kit allow for custom cutting and welding, catering to diverse application lengths.\u003c\/p\u003e\u003ch3\u003eMaterial Science, Manufacturing, and Quality Assurance\u003c\/h3\u003e\u003cp\u003eThe performance and longevity of the H7 tubular shaft assembly are inherently linked to the quality of its materials and manufacturing processes. Components are typically forged or cast from high-grade alloy steels, selected for their specific mechanical properties such as tensile strength, yield strength, and resistance to fatigue. Heat treatment processes, including quenching and tempering, are applied to optimize the microstructure of the steel, enhancing its hardness, toughness, and wear resistance, particularly in critical areas like the journal trunnions and spline teeth. Surface treatments may also be employed to improve corrosion resistance or reduce friction.\u003c\/p\u003e\u003cp\u003ePrecision machining is vital for all components. Tolerances are held to extremely tight specifications to ensure proper fitment, minimize backlash, and facilitate smooth operation. For instance, the concentricity of the tube and the precise alignment of the yoke bores are critical for maintaining balance and minimizing vibration. Dynamic balancing is a crucial manufacturing step for the assembled shaft. Imbalances, even minute ones, can generate significant centrifugal forces at high rotational speeds, leading to destructive vibrations, noise, and premature wear on bearings and other driveline components. Assemblies are typically balanced to ISO or equivalent standards to ensure optimal performance across their intended operating speed range.\u003c\/p\u003e\u003ch3\u003eMedium Duty Torque Rating and Application Scope\u003c\/h3\u003e\u003cp\u003eThe designation \"medium duty torque rating\" signifies that the H7 1-1\/4 Inch Tubular Shaft Assembly is engineered for applications that impose moderate but consistent torsional loads. This rating implies specific design considerations regarding the size of the universal joints, the strength of the tubular shaft material, and the spline engagement. Such assemblies are typically suited for a range of industrial and commercial applications that do not require the extreme load capacities of heavy-duty drivelines, nor are they limited to the very light loads of precision instrumentation. Examples include various power take-off (PTO) applications on agricultural machinery, auxiliary drives on light and medium commercial vehicles, industrial pumps, mixers, conveyors, and certain off-highway equipment. Understanding the specific torque requirements, peak loads, and operational duty cycle of the target application is paramount when selecting this assembly, ensuring that its medium-duty rating aligns with the system’s demands to prevent overload and premature failure.\u003c\/p\u003e\u003ch3\u003eCustomization, Adaptability, and Extended Configurations\u003c\/h3\u003e\u003cp\u003eA significant advantage of the H7 tubular shaft assembly is its inherent customizability, facilitated by its unwelded state. The shaft and one weld yoke are provided separately from the other components, allowing the user or fabricator to precisely cut the tube to the exact required length for their specific application. This capability eliminates the need for extensive inventory of various fixed-length shafts and enables bespoke driveline solutions. Following cutting, professional welding of the remaining weld yoke to the tube is required. This process must be performed by qualified personnel using appropriate welding techniques to maintain the structural integrity and concentricity of the shaft. Post-welding, dynamic balancing is highly recommended to ensure smooth operation and prevent vibrational issues.\u003c\/p\u003e\u003cp\u003eFurthermore, the assembly's adaptability is extended by its compatibility with a midship stub. A midship stub is typically employed in longer driveline configurations to break a single, excessively long shaft into two shorter sections, connected by an intermediate bearing support. This design approach is critical for managing critical speed limitations, preventing shaft whip, and reducing sag in extended drivelines. By utilizing a midship stub, the H7 assembly can be integrated into multi-piece driveline systems, allowing for the transmission of power over greater distances or around complex structural obstacles, enhancing the versatility and application range of the product within larger machinery or vehicle platforms.\u003c\/p\u003e\u003ch3\u003eAchieving Smooth and Continuous Torque Transfer\u003c\/h3\u003e\u003cp\u003eThe promise of \"smooth and continuous torque transfer\" is a testament to the meticulous engineering behind the H7 assembly. This characteristic is achieved through several interdependent design and manufacturing principles. Firstly, the selection and precise machining of the journal assemblies (U-joints) ensure minimal play and efficient angular articulation. Secondly, the proper phasing of these U-joints within the driveline configuration is critical to counteract the inherent velocity fluctuations of single cardan joints, thereby delivering a constant output velocity. Thirdly, the aforementioned dynamic balancing of the entire rotating assembly mitigates vibrations caused by mass eccentricities. Lastly, the smooth engagement and minimal backlash of the splined slip yoke mechanism allow for axial movement without interrupting the flow of power or introducing undesirable jarring. Adherence to these principles ensures that power is delivered efficiently, quietly, and without generating harmful torsional oscillations throughout the system.\u003c\/p\u003e\u003ch3\u003eInstallation and Maintenance Best Practices\u003c\/h3\u003e\u003cp\u003eProper installation is paramount for realizing the full performance potential and longevity of the H7 tubular shaft assembly. Key considerations include: ensuring correct driveline angles to minimize U-joint working angles and prolong component life; professional welding of the custom-cut tube and weld yoke, followed by dynamic balancing; proper lubrication of the slip yoke splines and journal assemblies using manufacturer-recommended greases; and meticulous alignment of all connected components. Routine maintenance, including periodic inspection of U-joints for wear, end play, or seal integrity, and relubrication according to service schedules, is essential. Early detection of wear or damage can prevent catastrophic failure and significantly extend the service life of the entire driveline system, minimizing downtime and operational costs.\u003c\/p\u003e\u003ch3\u003eElaborating on Technical Specifications\u003c\/h3\u003e\u003cp\u003eThe provided specifications are fundamental for engineers and technicians to correctly integrate and apply the H7 assembly. The \"Center of Journal Assembly to Center of Journal Assembly Length\" of 55.0 inches defines the critical operating length between the U-joints, which directly impacts driveline angle calculations and resonant frequency analysis. The \"Overall Length\" of 60.00 inches gives the maximum extension from the tip of the slip yoke to the end of the weld yoke, offering a clear dimensional envelope. The \"Series: H7\" categorizes the assembly within Buyers Products' product lines, indicating a specific performance class and interchangeability. Individual part numbers (e.g., Journal Assembly Part Number: 5170BXA, Slip Yoke Part Number: 7381, Tube and Weld Yoke Part Number: TS760, Stub Shaft Part Number: SS) are crucial for ordering replacement parts, ensuring compatibility, and facilitating precise identification within inventory and maintenance records. The \"Tube and Weld Yoke Length\" of 46.5 inches provides a baseline for customization, indicating the initial segment length before the customer-defined cut.\u003c\/p\u003e\u003ch3\u003eConclusion\u003c\/h3\u003e\u003cp\u003eThe Buyers Products H7 1-1\/4 Inch Tubular Shaft Assembly stands as a testament to thoughtful engineering, providing a highly adaptable and robust solution for medium-duty torque transmission requirements. Its modular construction, featuring an unwelded tube for custom length adjustments, coupled with high-quality universal joints, a reliable slip yoke mechanism, and a precisely engineered tube and weld yoke, ensures optimal performance across a spectrum of industrial and commercial applications. The focus on smooth and continuous torque transfer, combined with the flexibility for extended configurations via midship stubs, underscores its value in demanding mechanical systems. By offering a comprehensive assembly that prioritizes both performance and customization, the H7 series empowers engineers and system integrators to achieve efficient, durable, and precisely tailored driveline solutions.\u003c\/p\u003e","brand":"buyersproductscompany","offers":[{"title":"Default Title","offer_id":62449333567859,"sku":"TSA760","price":138.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/9513\/9187\/files\/TSA760_front_c1fe4635-4eac-4ff4-92c1-e2e9f7829bda.jpg?v=1768842227","url":"https:\/\/titustrucksaccessories.com\/products\/tsa760-h7-1-1-4-inch-tubular-shaft-assembly-60-inch-overall-length","provider":"Titus Trucks Accessories ","version":"1.0","type":"link"}