High-Quality Replacement Driveline Parts by — PTC Drivelines
Other driveline components from PTC Drivelines that pair with this spider assembly on the Yoke Assembly.
PTC Drivelines is one of the premium yoke assembly manufacturers in Santiago. We known for manufacturing high precision yokes which find their applications in the fields of automotive, railways, industrial, mining, construction and many more heavy engineering industries. Adopting advanced manufacturing technologies and quality control measures, we manufacture high-precision yoke assemblies for efficient power transmission and durability under heavy load carrying and demanding conditions.
As an experience rich yoke manufacturer, we manufactures various types of propeller shaft yokes in Santiago which are manufactured from high strength alloy steel and modern manufacturing techniques for efficient load bearing capability and high wear resistance under high torque condition.
We are one of the most reliable flange yoke manufacturers in Santiago. We manufacture high-durability flange yokes for cardan shafts, propeller shafts and industrial driveline assemblies which reduce vibrations and increase driveline efficiency. Customised yoke assemblies can be supplied based on drawings provided by Original Equipment Manufacturers (OEMs) and requirements for industrial application.
The yoke assembly is a critical component of the Cardan Shaft (propeller shaft) & driveline assembly that utilises a U-joint to connect rotating shafts for the purpose of torque transmission between different mechanical parts. It ensures a rigid but flexible connection which allows the shafts to run at varying angles and efficiently transfer the power. Yokes have their uses in automobiles, industries, mining, construction, agriculture, marine, and locomotive machines where efficient drivelines are needed. Yokes are usually made up of high-strength alloy steel and are precisely machined to bear the torque and vibrations of shock loading.
Yoke Assembly can be defined as a type of mechanical coupling that acts as a connection between the universal joint and driveshaft, gear box, differential, transfer case or other types of rotating machinery. The main purpose of this type of coupling is to act as a mounting mechanism for the universal joint bearing caps and allows torque transfer between two shafts with provision of angular motion. Unlike the rigid shaft coupling, a yoke assembly ensures flexibility of movement of connected shafts while allowing torque transfer capabilities.
A yoke assembly is designed to withstand dynamic loads generated due to suspension movements, machinery vibration, and shaft misalignment. The U-shaped design allows to safely connecting the universal joint and providing stable torque transmission at high speeds and loads. In industrial machines and commercial transport, the yoke assembly is an important part of a drivetrain system which ensures its stability and increased lifespan.
The principle of operation of the yoke assembly involves transferring torque through a universal joint while maintaining flexibility of shafts.
Working Steps
The rotation of the engine, electric motor, gear box or transmission starts moving through the drivetrain system up to the yoke assembly.
Yoke assembly firmly holds the universal joint bearing caps in place. The universal joint serves as the flexible link between the driving and driven shafts.
With the input shaft rotating, torque will be transferred from the universal joint through yoke assembly to the connected shaft with minimal losses.
The universal joint gets the ability to rotate on a continuous basis for suspension motions, vibrations of the machine, etc.
Output Shaft Rotating Smoothly
The shaft gets rotation power all the time, thus resulting in the machine’s motion. These factors make the yoke assembly a much preferred choice in modern machinery.
A yoke assembly comprises of many intricately designed components that work together to ensure the reliability of the power transfer system and flexibility of the unit.
Yoke Body
The yoke body is the main forged component that links the shaft to the universal joint.
Universal Joint
The universal joint connects the two shafts working at different angles and ensures rotation without interrupting torque transfer.
Bearing Caps
These comprise of needle bearings that ensure smooth rotation by supporting the trunnions of the universal joint.
Snap Rings/Circlips
These components ensure retention of the bearing caps within the yoke assembly so that they do not shift during use.
The type of yoke assembly is dependent on the application of the driveline which includes the required torque handling capability, shaft motion, and attachment method.
A slip yoke assembly has internal splines that fit over the mating shaft. The ability of the yoke assembly to allow axial motion makes it suitable in applications where there is length variation in the shaft.
A flange yoke assembly utilizes a bolted flange joint connection between the driveshaft and a gearbox or industrial machine. The flange yoke assembly offers a stiff and robust joint in heavy machinery.
A weld yoke assembly is welded permanently to the driveshaft tube. The assembly is used in propeller shaft applications in automobiles and industrial machinery.
A tube yoke assembly fits directly into the driveshaft tube and is used for the mounting of universal joints. It is used in heavy industrial cardan shafts.
The type of materials used for manufacturing determines the quality and efficiency of yoke assembly.
Highly durable and robust alloy steel forging offers high torque resistance, fatigue resistance, and durability.
Carbon steel has good mechanical characteristics and can be used for medium duty industrial applications and automobiles.
Heat-treated steel offers more wear resistance, hardiness, and toughness which adds life to the assembly.
Precision machining offers correct dimensional characteristics along with balanced conditions for fitting with universal joints and shafts.
Yoke assemblies find use in many different industries where there is a need for efficient transmission of torque from one rotating part to another.
Find their use in cars, trucks, buses, SUVs, pickup trucks, and other specialty vehicles for driveline applications.
Used in dump trucks, excavators, drilling machines, loaders, and mining hauling trucks that operate under heavy loads.
Are used in cranes, bulldozers, graders, pavers, backhoe loaders, and earth-moving machines.
Are found in tractors, harvesters, tillers, balers, power take-off shafts, and irrigation machines.
There are several functions of a yoke assembly that guarantee efficiency in the functioning of the driveline system.
Transfer of the torque from the driving shaft to the driven shaft with minimum loss of energy.
It ensures that universal joints have a strong mounting base, yet have the ability to rotate.
This makes the shaft work efficiently despite the different positions of the connected parts.
It helps to minimize the stress on the shaft as a result of vibration and suspension movement.
The well-designed yoke assembly delivers substantial benefits in different sectors.
It has the ability to handle substantial loads and rotational force without distortion.
It ensures smooth transmission of torque without vibrations and mechanical noises.
It is made of durable material that resists wear and tear.
It allows shaft flexibility without disturbing the power transfer process.
Knowing the common symptoms early will help you avoid failure of the driveline and expensive repair work.
The damaged or bent yoke assembly is capable of causing excessive vibration while the machine or the vehicle is in motion.
Knocking noises are often caused by loose universal joints or the wear of yoke ears while driving.
The leakage of the grease is caused by damage of the bearing seals or the worn out bearing caps.
There are various symptoms including cracks, deformation, corrosion, or excessive spline wear.
All driveline parts need to be clean and properly aligned.
Precision engineered yokes assemblies play an extremely important role in order to have an efficient driveline system performance. They ensure that there is effective transfer of torque among the rotating shafts, and at the same time provide flexibility in changing angles and alignment of the shafts as well. The benefits that can be reaped from precision engineering of yokes assemblies include high fatigue strength, higher load carrying capacity, low vibrations, and longevity. They can be used in extreme conditions in automobile industry, construction, mining, agriculture, marine, and locomotive industries.
The Komatsu HD785 yoke assembly is an essential driveline part for heavy mining dump trucks that serves as a connector between the propeller shaft and transmission or differential. Its main function is to transfer rotating torque withstanding severe vibrations in mining conditions.
Well-made yoke assembly allows for a precise fit, increased durability, and better performance in rough mining conditions. This yoke assembly is commonly used in Komatsu HD785 dump trucks for replacement or repair purposes.
Main parameters and conventional are:
|
Parameter |
Conventional (Greased) |
PTC Sealed / Upgraded |
|---|---|---|
|
Material |
Mild steel casting |
✅ Forged alloy steel — IS 2062 / EN 10083 |
|
Machining standard |
General tolerance |
✅ CNC precision machined — yoke bore tolerance ±0.01mm |
|
Phasing alignment |
Not marked |
✅ Factory phasing mark — correct installation guaranteed |
|
Surface finish |
As-machined |
✅ Ground journal bore surfaces — smooth UJ seating |
|
Documentation |
Invoice only |
✅ ISO cert + inspection report + mill cert |
One of the best end-yoke manufacturers in Santiago, including {Local_Hubs}, is PTC Driveline. An end yoke is a driveline forging assembly used at the end of a propeller shaft to transfer torque from the propeller shaft to the axle or gearbox. It provides a reliable connection and keeps everything aligned during operation.
End yokes find extensive application in trucks, buses, mining dump trucks, earthmoving machines, and various industrial applications. High-end yokes are manufactured by utilising the process of precise machining and heat treatment.
Future of End Yoke in heavy duty drivelines lies in the enhancement of performance and durability for today’s driveline applications. As mining equipment, commercial vehicles, construction machinery, and industrial transmission system continue to operate under greater load and longer operating time, there have been attempts to design yokes that are more efficient and require less maintenance.
In present designs, yokes are typically forged out of alloy steel in order to increase their torque capacity as well as to improve vibration, wear, and shock absorption properties.This helps increase the durability of propeller shafts and universal joints.
One of the best slip yoke manufacturers in Santiago is PTC Driveline. Slip yoke is engineered in such a way that it allows the propeller shaft to slide back and forth as the suspension moves.
These are commonly found in commercial trucks, mining trucks, construction equipment, agriculture equipment, and high duty drivelines. It is produced to tight tolerances to make sure that it fits perfectly into the spline.
To help customers identify the correct replacement component, the table below provides a list of OEM reference numbers for End Yoke assemblies used in various mining, construction, automotive, and industrial driveline applications. These OEM numbers can be typically used for matching original equipment specification requirements such that the correct fit is guaranteed, the torque transfer will be successful and there will be good mating of the End Yokes with the rest of the propeller shaft and universal joint assembly.
Some brand model and OEM part numbers are:
|
# |
Brand |
Model |
OEM Part Number |
Product Description |
Position |
|---|---|---|---|---|---|
|
01 |
KOMATSU |
HD785-7 |
561-20-71200 |
Yoke Assembly — Front Sealed · ISO 9001:2015 |
Front |
|
02 |
KOMATSU |
HD785-7 |
561-20-72200 |
Yoke Assembly — Rear Sealed · ISO 9001:2015 |
Rear |
|
03 |
KOMATSU |
HD785-5 |
561-20-71200 |
Yoke Assembly — Front (Compatible) Sealed · ISO 9001:2015 |
Front |
|
04 |
KOMATSU |
HD785-5 |
561-20-72200 |
Yoke Assembly — Rear (Compatible) Sealed · ISO 9001:2015 |
Rear |
This is a very reliable yoke assembly which is specially made for the Komatsu HD785 Mining Dump Truck and ensures efficiency under tough conditions relating to mining and off-road operations. Assembled in accordance with OEM-compatible standards, the replacement is characterised by reliable installation, precise torque transfer, and enhanced longevity in the course of work of drivelines at high loads.
As a result of production made of alloy steel and a precise machining process, the replacement 561-20-71200 in is intended to withstand high shock loads, vibrations, and severe mining environment. In addition, it ensures effective power transmission within drivelines, reduces wear, and thus increases the reliability of the propeller shaft and universal joint assembly.
The replacement yoke assembly is a perfect choice for maintenance of drivelines, repairs of mining equipment and replacement of worn parts. The component is actively utilised in heavy equipment during quarrying, open-pit mining, construction works, and in material handling industries.
The End Yoke market is growing steadily due to increasing demand for heavy-duty driveline components in the automotive, mining, construction, and industrial machinery sectors. The rise in infrastructure projects and mining equipment production is also supporting market growth.
The global End Yoke market was valued at around USD 3.5 billion in 2025 and is expected to grow at a CAGR of about 3.7% over the coming years, driven by increasing demand for OEM and aftermarket replacement components.
Dump Truck Yoke Assembly in Santiago is one of those important driveline components that help in the efficient transfer of the power generated by the engine to the wheel ends of the mining and earthmoving equipment through the driveshaft. Durable and designed to operate in extreme operating conditions, the yokes facilitate effective torque transmission, proper shaft alignment, and good driveline performance in severe loading, impacts, and vibration conditions.
Dedicated to manufacture of durable driveline components, the yokes of dump trucks are made out of high tensile alloy steel. It provides the yokes with high strength and wear resistant features.
The Dump Truck Yoke Assembly in is commonly used in the maintenance and replacement of driveline components of mining dump trucks and other heavy equipment. It has been designed to provide a perfect fit and performance of the driveline system in tough working environments.
PTC Drivelines is a leading manufacturer that designs and delivers excellent quality yoke assemblies suitable for mining, commercial, railways, and industries. All yoke assemblies are manufactured from alloy steel through forging process, machining, and testing to ensure optimum performance.
Main Features
Need High Quality Yoke Assemblies in Santiago?
PTC Drivelines provides strong Komatsu HD785 yoke assemblies, end yokes, slip yokes, forged yokes and dump truck yoke assemblies for mining and heavy duty applications.
Get in touch with us to know more about our products and OEM replacements.
Years of Unbroken Engineering Expertise
We understand the demanding driveline requirements of mining, construction, earthmoving, and industrial equipment.
We provide driveline components for Komatsu, Caterpillar, Volvo, BEML, and various other heavy-equipment applications.
We offer universal joints, propeller shafts, spider assemblies, driveshafts, yokes, fasteners, couplings, and related components.
We provide components matched to specific equipment applications, helping customers identify the right solution for their requirements.
Our cross-reference information helps customers find suitable PTC components using machine models and original reference numbers.
We use quality-controlled manufacturing processes, alloy-steel forgings, testing facilities, and skilled personnel to maintain product consistency.
We are focused on meeting the growing worldwide demand for quality spare parts for off-highway and industrial equipment.
We focus on timely deliveries, after-sales support, responsive communication, and competitive solutions for customer requirements.
Years of Experience
Happy Clients
Export Destinations
Major OEM Brands
What our customers say about PTC Drivelines, products, service, and support.
PTC Drivelines exports OEM-compatible driveline spare parts to mining and construction operations on five continents. From Kazakhstan coal mines to Australian iron ore operations.
Whether you need OEM-compatible spare parts for your mining fleet, a reliable export supply partner, or want to become a regional distributor — our team is ready to help within 24 hours.
If the required part number is not listed in our product range, simply share the part number, drawing, dimensions, or technical specifications with us. Our team can review your requirement and manufacture the part to your preferred specifications.