Table of Contents
What are taper pins used for?
Taper pins are often used to position and secure mechanical components. They are held in place using dry friction making them economical and easy to install. The pin’s tapered design increases in diameter from one end to the other allowing for accurate, secure installation to tapered holes.
What angle are tapered pins?
The major diameter of both commercial and precision classes of pins is the diameter of the large end and is the basis for pin size. 1/4 taper per foot included angle is 1° 11′ 37” and the angle with center line is 0° 35′ 49” .

How do you calculate taper?
Taper Calculator
- Formula. T = (dl – ds) / L TA = atan(0.5 x T)
- Larger Diameter.
- Smaller Diameter.
- Length.
What is the difference between a roll pin and a spring pin?
A spring pin is an unthreaded mechanical fastener that expands to securely fit in a hole. Spring pins, also known as roll pins, are designed to be inserted into a hole that has a smaller diameter than the pin.
How do you find the angle of a taper?
What is a 1 50 taper?

A 1:50 taper means that one end of a half-meter long bar (50 cm) will be 1 cm smaller in diameter than the other end, or a 2 mm taper over a decimeter length.)
What is a 1/10 taper?
All propellers in stock at TechProMax have the standard taper 1:10. This means that the difference between the largest and the smallest diameter of the tapered hole represents 10% of the length of the propeller’s boss (D-d=0.1 x L).”
What is the taper ratio?
Taper ratio (λ) is the ratio of the tip chord (ct) to the root chord (cr). Mean aerodynamic chord can be found by integrating the individual section chords across the span.
What does a 1/10 taper mean?
Common levels of taper in propellers include 1:10 (that is, a one unit increase in diameter for every 10-unit increase in length), 1:12 and 1:16. Specialized power boats are often made to unusual specifications. TPF, or taper per foot, is the most common unit used in this industry.