PTO Drive Shaft for New Holland Square Balers 900 Models

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PTO Drive Shaft for New Holland Square Balers 900 Models

A PTO drive shaft is a mechanical device that transfers power from a power source, such as a tractor engine, to an external machine. PTO drive shafts are used in various applications, including agriculture, construction, and forestry.

A PTO drive shaft usually consists of two main parts: the drive end and the driven end. The driving end is connected to the power supply, and the driving end is connected to the external machine. The driving end and the driven end are connected by a flexible coupling, allowing misalignment between the two parts.

PTO drive shafts are available in a variety of sizes and configurations. The length of the PTO drive shaft depends on how much power it needs to transmit. The design of the PTO drive shaft depends on the type of power supply and the external machine it will be used with.

New Holland Square Balers Bigbaler Models: 330, 340

PTO Drive Shaft Assembly:

PTO Catagory / RPM Tractor Part Number
CAT5/540 1.375-6 CS8R121U2WR7000
CAT5/1000 1.375-21 CS8R121U2WR8000
CAT5/1000 1.750-20 CH8R121U2WR0000

PTO Drive Shaft Yokes:

Part Number Diameter No of Splines Bore c-e Length Notes
5090L0360 1.375 6 68 133 splined
5090L3760 1.375 21 68 133 splined
5090L0460 1.750 6 68 133 splined
5090L3860 1.750 20 68 133 splined

Tractor PTO Drive Shaft Types:

1. PTO shaft can be divided into rear type, font type, and side type according to different installation positions on the tractor;

The rear-mounted PTO shaft is mounted at the tractor’s rear and is the most common form used on tractors.

The front-mounted PTO shaft is installed in the front of the tractor, which is usually installed on the high-horsepower tractor with the rear PTO shaft. It is mainly used for joint operations. The tractor is installed in the front and rear simultaneously, which can complete several functions simultaneously and greatly improve fieldwork efficiency.

Side-mounted PTO shafts are located on the side of the tractor and are used more often on small horsepower tractors.


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What Is a PTO Shaft?

PTO drive shafts are the connection points for transferring the power from larger tractors to implements. PTO drive shafts are splined shafts sticking out of the tractor’s rear (compact utility tractors), splined recesses in the rear of the tractor (garden tractors), or splined shafts protruding from some point underneath the tractor. There are industry standards for the speed of these shafts.

The recessed PTO on garden tractors turns at 2,000 rpm. It uses the recessed design to prevent connecting an implement designed for the 540 rpm PTO used on compact utility tractors. Implements connect to the PTO shafts using a drive shaft with two or three universal joints to provide flexibility.

PTO Drive Shaft Application:

How to Measure the Parts of the PTO Drive Shaft?


Measuring the parts of the shaft correctly is essential for selecting the correct PTO series dimensions. Each product needs to be measured in a specific way to be consistent with the standard size. Follow these steps to ensure that the correct measurements are obtained and to order the parts required for the tractor.

1. Measuring axis
To measure the shaft, first make sure that the shaft is in the closed position, at which time the shaft is the smallest. Use a tape measure to record the length of the outside of each yoke. This measurement is the closing length. Use this measurement to find the correct series size for the tractor horsepower.
Make sure you also know if there are shear pins, clutches, or splined implement ends.
2. Measure the universal joint
When measuring the universal joint, measure the length from one end to the other. You also need to record the width of one end of the universal joint. Use these numbers to find the correct size of the universal joint.
3. Put them together
You need to make the above two measurements in order to find the PTO shaft parts suitable for your tractor and work normally. You can use the PTO yoke size chart to get the correct size, or use our convenient PTO series discovery tool.