|
Parameter
|
Type
|
Description
|
|---|---|---|
|
Type
|
Choice List
|
The type of spring. Choices are Compression Spring, Torsion Spring, and more.
|
|
Tensile Strength
|
Real (10^3 psi). Used in Cy calculation.
|
The measure of spring material deformation or a function of stress. For more information, see Tensile Strength Values for Springs.
|
|
Corrosion Factor
|
Real. Used in Cr calculation.
|
A rating that takes into account the corrosive properties of the spring and the operating environment. If you know that corrosive protection has been applied to the spring during the manufacturing process, a corrosion factor of 1.0 can be used; otherwise, a higher number should be used based on previous experience.
|
|
Manufacturing Factor
|
Real. Used in Cm calculation.
|
A rating that takes into account the effects of sharp corners and similar stress risers, as well as the effects of the hardness of the spring material during plating and baking operations. A manufacturing factor of 1.0 should be used for known acceptable quality control procedures, otherwise a higher number should be used based on previous experience.
|
|
Cycles/Hour
|
Real. Used in Ccs calculation.
|
The number of cycles/hour. This is required to convert failure ratings from failures/cycle to failures/million hour.
|
|
Modulus of Rigidity
|
Real (psi * E6) [Gm]. Used in Cg calculation.
|
Required only for the Compression Spring type.
The measure of elasticity in shear for the spring material. For more information, see Modulus of Elasticity Values for Compression Springs.
|
|
Spring Deflection
|
Real (in). Used in Cl calculation.
|
Required only for the following types: Compression Spring and Torsion Spring.
The deflection of the spring.
• For the Compression Spring type, the units are inches. Common values range from 0.3 to 2.2.
• For the Torsion Spring type, the units are degrees C. Common values range from 10 to 125.
Spring deflection can be calculated using:
D1 = L1 − L2
Where:
• D1 = The spring deflection.
• L1 = The initial deflection of the spring in inches.
• L2 = The final deflection of the spring in inches.
|
|
Modulus of Elasticity
|
Real (psi * E6) [Ge]. Used in Ce calculation.
|
Not required for the Compression Spring type.
The measure of elasticity in shear for the spring material for non-compression springs. For more information, see Modulus of Elasticity Values for Non-Compression Springs.
|
|
Wire Diameter
|
Real (in). Used in Cdw and Ck calculations.
|
Required only for the following types: Compression Spring and Torsion Spring.
The diameter of the wire in inches. Common values for wire diameter range from 0.05 to 0.15.
|
|
Coil Diameter
|
Real (in). Used in Cdc and Ck calculations.
|
Required only for the following types: Compression Spring and Torsion Spring.
The diameter of the coil in inches. Common values for coil diameter range from 0.3 to 0.99.
|
|
# of Coils
|
Integer. Used in Cn calculation
|
Required only for the following types: Compression Spring and Torsion Spring.
The number of coils in the spring. Common values range from 6 to 22.
|
|
Outside Diameter/Length
|
Real (in). Used in Cd and Cs calculations.
|
Required only for the following types: Curved Washer, Wave Washer, Belleville Washer, Cantilever Spring, and Beam Spring.
• For the Torsion Spring type, the outside diameter of the spring is entered in inches.
• For Cantilever Spring and Beam Spring types, the length of the beam is entered in inches.
Common values range from 0.5 to 3.0.
|
|
Washer Deflection
|
Real (in). Used in Cf calculation.
|
Required only for the following types: Curved Washer, Wave Washer, Belleville Washer, Cantilever Spring, and Beam Spring.
The length of deflection of the spring in inches. Common values range from 0.02 to 0.13.
|
|
Material Thickness
|
Real (in). Used in Ct calculation.
|
Required only for the following types: Curved Washer, Wave Washer, Belleville Washer, Cantilever Spring, and Beam Spring.
The thickness of the spring material in inches. Common values range from 0.01 to 0.08.
|
|
Number of Waves
|
Integer. Used in Cnw calculation.
|
Required for the Wave Washer type only.
The number of waves in the wave washer. Common values range from 3 to 8.
|
|
Inside Diameter
|
Real (in). Used in Cs calculation.
|
Required for the Belleville Washer type only.
The inside diameter of the Belleville washer in inches.
|