A 1 3/8 21 spline PTO adapter is a specialized component designed to connect PTO shafts with a 1 3/8-inch diameter and 21 splines to implements or machinery that require a different type of PTO connection. This size and configuration are often used in tractors and farm equipment.
Key Features of a 1 3/8 21-Spline PTO Adapter
1. Compatibility:
Commonly fits tractors with a 1 3/8-inch, 21-spline PTO output.
Adapts to different shaft types, such as 6-spline or 20-spline inputs.
2. Material:
Usually made from heavy-duty hardened steel to withstand high torque and wear.
3. Applications:
Connecting mismatched PTO shafts between tractors and implements.
Used in farming, landscaping, and industrial machinery.
Common Uses:
Attaching implements like rotary cutters, hay balers, or tillers to a tractor.
Modifying PTO output to match equipment input.
Providing flexibility when swapping between implements with different PTO configurations.
