Extension Spring: OD 6.3 mm, FL 70 mm, Music WireStandard Extension Series (metric)Selection to Match Your Needs Lee Spring LEM075C 13 M is a precision extension spring from the Standard Extension Series (metric) series, engineered for applications requiring reliable quality extension springs. This spring features a 6.3-mm outside diameter (0.248 inch) with 4.78-mm loop inside diameter (0.188 inch) and extends from a free length of 70 mm (2.756 inch) to a maximum extended length of 141.58 mm (5.574 inch). Made from Music Wire with a 0.74-mm wire diameter (0.029 inch), the spring delivers a spring rate of 0.24 N/mm (1.37 lb/inch) through its 79.5 total coils with an initial tension of 2.447 N (0.55 lb) for predictable extension behavior. The spring supports a maximum load of 19.617 N (4.41 lb) at full extension with a body length of 60.45 mm (2.38 inch). The spring features Random loop position and Zinc Plate and Bake per ASTM B633 finish for optimal performance. Extension Springs: Standard SeriesThe Lee Spring Standard Extension Spring Series includes a wide range of size and rate combinations and in both inch and metric sizes. Standard Series springs are available in Music Wire, Type 302 Stainless Steel and Type 316 Stainless Steel. Metric Series springs are available in Music Wire and Type 302 Stainless Steel. The Music Wire springs are provided with a plating finish for light corrosion resistance. The Type 302 Stainless Steel springs are passivated, while Type 316 Stainless Steel springs are passivated and ultrasonically cleaned. Lee Spring's Stock Extension Springs are supplied with full diameter loops (either to machine or crossover center style) at a random position with the exception of Metric Extension Springs which are specified to meet DIN Standards. Loop openings are approximately one wire diameter and the direction of wind is factory optional. Standard Extension Series (metric) Extension Springs have useful applications in various industries, including:
...and many more applications 270121
Product
Extension OD 0.248 in, Length 2.756 in, Music Wire
Product
Extension OD 6.3 mm, Length 70 mm, Music Wire
Part Number
LEM075C 13 M
Series
Standard Extension Series (metric)
Outside Diameter (inch)
0.248
Outside Diameter (cm)
0.63
Outside Diameter (mm)
6.3
Wire Diameter (inch)
0.029
Wire Diameter (cm)
0.074
Wire Diameter (mm)
0.74
Max Load (gm)
2000.4
Max Load (lb)
4.41
Max Load (kg)
2.0004
Max Load (N)
19.617
Rate (gm/cm) 245
Rate (gm/mm) 24.5
Rate (kg/cm) 0.245
Rate (kg/mm) 0.0245
Rate (lb/in) 1.37
Rate (N/cm) 2.4
Rate (N/mm) 0.24
Max Extended Length (cm) 14.158
Max Extended Length (in) 5.574
Max Extended Length (mm)
141.58
Initial Tension (gm)
249.5
Initial Tension (kg)
0.2495
Initial Tension (lb)
0.55
Initial Tension (N)
2.447
Free Length (cm)
7
Free Length (inch) 2.756
Free Length (mm) 70
Material Music Wire
Loop Inside Diameter (cm) 0.478
Loop Inside Diameter (in) 0.188
Loop Inside Diameter (mm) 4.78
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.029
0.248
0.005
2.756
0.05
79.5
0.55
0.11
1.37
0.137
5.574
4.41
0.029
2.38
Random
0.248
0.005
2.756
0.05
79.5
0.55
0.11
1.37
0.137
5.574
4.41
|
| Quantity | Price |
|---|---|
| 1 - 19 | $8.870 |
| 20 - 49 | $5.370 |
| 50 - 99 | $2.840 |
| 100 - 199 | $1.770 |
| 200 - 299 | $1.576 |
| 300 - 399 | $1.532 |
| 400 - 499 | $1.489 |
| 500 - 599 | $1.453 |
| 600 - 699 | $1.419 |
| 700 - 799 | $1.387 |
| 800 - 899 | $1.367 |
| 900 - 999 | $1.346 |
| 1000 | $1.333 |
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