Mastercoil Spring
Torsion Springs Specifications Form

Mandatory Specifications

1. To work over __________ in.(mm) dia. Shaft.
2. OUTSIDE DIAMETER
   1. __________ in.(mm) max. or
   2. __________ in.(mm) ± __________ in.(mm)
3. INSIDE DIAMETER
   1. __________ in.(mm) max. or
   2. __________ in.(mm) ± __________ in.(mm)
4. 1. Torque __________ lb.-in. (N-mm) ± __________ lb.-in. (N-mm) @ theta1 = __________ degrees.
   2. Torque __________ lb.-in. (N-mm) ± __________ lb.-in. (N-mm) @ theta2 = __________ degrees.
5. Length of space available __________ in.(mm)
6. Maximum wound position __________ turns or __________ degrees from free position
7. Length of moment arm (R) __________ in.(mm)
8. Direction of helix (L,R or optional) __________
9. Type of ends ______________________________

Advisory Data

1. Wire diameter __________ in.(mm)
2. Mean coil diameter __________ in.(mm)
3. No. active coils __________
4. Rate __________ lb.-in.(N-mm) per turn (360 degrees)
5. ¯F = __________ degrees free angle reference.

Special Information

1. Type of material ______________________________
2. Finish ______________________________
3. Squareness (free): within __________ degrees
4. Frequency of rotation, __________ cycles/second, and working range,theta = __________ degrees to theta = __________ degrees deflection.
5. Operating temp. ________________ degrees F (degrees C)
6. End use or application ________________________________________________
7. Other ________________________________________________