The 35 Series Yoke & Tube Assembly is an extremely durable PTO shaft yoke built to last. This PTO Yoke has an 1-2/9 inch. square bore that makes it easy to connect. The length of the shaft is Centerline (Center of Ear hole to rear of the tube) 34-2/3 inches. Tube Outer Diameter 1-9 in. Tube Inner Diameter 2-9 inches. square The PTO drive shaft yoke runs at 108 kilowatts/81 HP at 1000RPM or 70 HP/52 Kilowatts @ 540 RPM for maximum efficiency. Weight of PTO's yoke: 12.06 lb. How Does Tractor PTO Shaft Work? The PTO shaft is the one that transfers the power of your tractor onto the machine you prefer. This PTO driveline is the place that everything else that requires power from a tractor gets its energy from. PTO drivelines can be ignored during routine maintenance checks because they are so important when operating farm equipment. What are the components of the PTO Tractor Shaft Drive Shaft? 1. The tractor yoke PTO assembly begins with this kind of yoke. It is attached to the tractor and is used to connect to the power train. There are two primary kinds of tractor yokes. One type includes a spring lock which utilizes a spring-loaded neck to join and unhook the yoke. The second is a quick-to disconnect, which connects using a pushpin. The tractor yoke could be identified as a six-spline, 20-spline or 21-spline to indicate the way it connects to the connector to the tractor. It is identified by counting the notches in the collar of the yoke. 2. Kit for Bearing and Cross- This u-joint is used to connect the yokes within the PTO assembly. Its cross-bearing kit could contain a snap ring within the bushing internally or externally. This means that it is located in the ear that connect the yoke. 3. Shaft Yoke - A cross and bearing kit joins the tractor yoke and the shaft of driveline. 4. Shaft - The shaft is the rod made of steel that is located at the heart of the driveline that provides its length as well as connecting the yoke to the attachments. 5. Tube-The shaft goes through this cylinder of steel, adding an extra layer of protection to the driveline 6. Tube Yoke- Connected to the tube's tip it connects the driveline and the device by using a cross that is connected to a bearing kit. 7. Implement YokeThe Implement Yoke links the driveline and the device or machine which is operated by the tractor. 8. Guard- A tough plastic covering is positioned around the driveline to protect it from the driveline from being damaged during operation.