Extension Spring: OD 4.5 mm, FL 30.99 mm, Music WireStandard Extension Series (metric)Selection to Match Your Needs Lee Spring LEM063B 04 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 4.5-mm outside diameter (0.177 inch) with 3.23-mm loop inside diameter (0.127 inch) and extends from a free length of 30.99 mm (1.22 inch) to a maximum extended length of 53.59 mm (2.11 inch). Made from Music Wire with a 0.64-mm wire diameter (0.025 inch), the spring delivers a spring rate of 0.701 N/mm (4 lb/inch) through its 40 total coils with an initial tension of 2.611 N (0.587 lb) for predictable extension behavior. The spring supports a maximum load of 18.282 N (4.11 lb) at full extension with a body length of 26.04 mm (1.025 inch). The spring features Inline 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 269521
Product
Extension OD 0.177 in, Length 1.22 in, Music Wire
Product
Extension OD 4.5 mm, Length 30.99 mm, Music Wire
Part Number
LEM063B 04 M
Series
Standard Extension Series (metric)
Outside Diameter (inch)
0.177
Outside Diameter (cm)
0.45
Outside Diameter (mm)
4.5
Wire Diameter (inch)
0.025
Wire Diameter (cm)
0.064
Wire Diameter (mm)
0.64
Max Load (gm)
1864.3
Max Load (lb)
4.11
Max Load (kg)
1.8643
Max Load (N)
18.282
Rate (gm/cm) 714
Rate (gm/mm) 71.4
Rate (kg/cm) 0.714
Rate (kg/mm) 0.0714
Rate (lb/in) 4
Rate (N/cm) 7.01
Rate (N/mm) 0.701
Max Extended Length (cm) 5.359
Max Extended Length (in) 2.11
Max Extended Length (mm)
53.59
Initial Tension (gm)
266.3
Initial Tension (kg)
0.2663
Initial Tension (lb)
0.587
Initial Tension (N)
2.611
Free Length (cm)
3.099
Free Length (inch) 1.22
Free Length (mm) 30.99
Material Music Wire
Loop Inside Diameter (cm) 0.323
Loop Inside Diameter (in) 0.127
Loop Inside Diameter (mm) 3.23
Ends Standard Loops
Loop Position Inline
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.025
0.177
0.008
1.22
0.024
40
0.587
0.117
4
0.4
2.11
4.11
0.025
1.025
Inline
0.177
0.008
1.22
0.024
40
0.587
0.117
4
0.4
2.11
4.11
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| Quantity | Price |
|---|---|
| 1 - 19 | $8.570 |
| 20 - 49 | $5.170 |
| 50 - 99 | $2.720 |
| 100 - 199 | $1.690 |
| 200 - 299 | $1.545 |
| 300 - 399 | $1.480 |
| 400 - 499 | $1.438 |
| 500 - 599 | $1.404 |
| 600 - 699 | $1.376 |
| 700 - 799 | $1.353 |
| 800 - 899 | $1.333 |
| 900 - 999 | $1.315 |
| 1000 | $1.297 |
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