G series PTO Shaft Spline Tube G2 G4 G5 G6 G7 G8 G38 G42 G50


540 tr./min 1000 tr./min MP(NM)
Kw Pk Nm Kw Pk Nm
G2 15 21 270 23 31 220 450
G4 26 35 460 40 55 380 780
G5 35 47 620 54 74 520 1050
G6 47 64 830 74 100 710 1450
G7 55 75 970 87 118 830 1800
G8 70 95 1240 110 150 1050 2250
G38 78 105 1380 123 166 1175 2500
G42 79 107 1400 122 166 1175 2500
G50 119 162 2095 182 248 1740 3700

G series PTO Shaft Spline Tube G2 G4 G5 G6 G7 G8 G38 G42 G50

Reliable Tractor PTO Shaft Assemblies and Replacement Parts

At ever-power, we have the parts and components you need to keep your PTO driveline in excellent condition. We also have complete new assemblies in multiple sizes to fit your applications. Our inventory is massive and includes:

Tractor PTO shafts: If you’re looking for a full assembly, we have you covered. We carry a large selection of North American-designed and Italian-designed tractor PTO shafts with the length and spline configurations you need.
CV PTO assemblies: CV (Constant Velocity) PTO shafts work with most tractors and implements. These products balance the tractor power input and shaft output to deliver more stability when engaged.
Cross and bearing kits: Cross and bearing kits are the universal joints that form your PTO drive shaft system’s core. This part is the distribution point for power from your PTO assembly to your connected equipment.
Half-shaft assemblies: We have a wide variety of 48-inch and 60-inch Weasler half-shaft Power Take-Off assemblies. Center and end-of-shaft length assemblies are available in both square and rectangular design options.
Additional components: If your tractor PTO shaft parts start to show signs of wear, save money on a new assembly with individual component replacement. We have tons of new guards and guard bearings, inner and outer tubes, yokes, pins, and universal clutches.

Spline tube

How to Cut Your PTO Shaft to the Right Size

You can cut your PTO shaft to prevent it from bottoming out so the tractor and gearbox are not in conflict. Follow these 5 steps to complete this process.

1. Find Your Part Number
The first step in cutting your PTO shaft to adjust the size is understanding the part number the specifications provided. Look at the label on the shaft to find yours. An example of a part number is 14006127.

In this example, 1,400 is the designation of a complete shaft. The 6 means that it is a Bondy LD shaft. The 1 refers to the series number, and 27 is the measurement in inches from 1 tip of the shaft to the other.

2. Attach Parts of Your Shaft to Your Tractor and Gear Box
To measure your shaft for cutting, take it apart, hook 1 tube and shield CZPT the tractor and attach the other to the gearbox. Make sure both parts are straight so you can get the most accurate measurements.

3. Measure the Distance Between Parts
Next, measure the shortest distance between the tractor and the gearbox. Be sure to measure in a straight line for an accurate reading. This measurement is the maximum compressed length of an operable PTO shaft for your tractor.

4. Determine How Much You Need to Cut
Use the optimal length of the PTO shaft obtained in step 3 to figure out how much you need to cut off your shaft so it can function effectively. Take the measurement given in the last digits of your part number and subtract from it the maximum length allowed. This calculation will give you the amount you need to cut to get your shaft to an operational fit for your tractor.

For example, if the maximum compressed length of the shaft for your tractor is 23 inches and you have a 27-inch shaft, you would need to remove 4 inches for it to function properly.

5. Cut Shafts and Shields to Correct Length
The final step is to cut your shaft to the right length. Leave the shaft apart so you have access to the outer shields and inner tubes. You can use either a hacksaw or a reciprocating saw to cut the material.

If you have 2 equal-length tubes in your shaft, you will need to cut both tubes and both shields to the appropriate length. If you have unequal tubes, you can shorten only the longer part and the shields. Once you put your shaft back together, it should be the correct, shortened length all around.

PTO Shaft for Agricultural Gearbox

Agricultural equipment such as tractors, combines, and harvesters use PTO shafts. These components are subjected to high loads and stress, and it is vital to find out why they failed in the first place. Constant compression of the shaft can damage connecting shafts and even the tractor and implement. A PTO shaft for an agricultural gearbox is an integral part of an agricultural implement or tractor. And PTO shaft for the agricultural gearbox is secured with a safety shield at both ends and can be found on implements and tractors. A PTO shaft can be welded to the drive end by using a universal joint, while the rear shaft can be welded directly to the tractor.

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high 10sile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in 1-piece and 2-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually 1-piece. A 2-piece collar is easier to install than a 1-piece 1. The 2-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble 1-piece collars before installing a 2-piece collar.

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.