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Specifications

 

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Physical Dimension

mm cm

Load

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LEM200EC 04 M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.09 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
40.000
Published Stock Code
LEM200EC04M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
2.35
Rate (kg/cm)
2.40
Rate (lb/in)
13.42
Rate (gm/mm)
239.70
Weight per Item (lb)
0.09
Material Specification
ASTM A228
Free Length (cm)
9.799
Free Length (inch)
3.858
Free Length (mm)
97.990
Free Length - Build Spec (in)
3.86
Free Length Tolerance (cm)
0.20
Free Length Tolerance (in)
0.08
Free Length Tolerance (mm)
1.96
Free Length Tolerance - Build Spec (in)
0.08
Inside Diameter (cm)
1.00
Inside Diameter (in)
0.39
Inside Diameter (mm)
9.98
Outside Diameter (cm)
1.400
Outside Diameter (in)
0.55
Outside Diameter (mm)
14.00
Outside Diameter - Build Spec (in)
0.55
Outside Diameter Tolerance (cm)
0.03
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.30
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
2397.00
Rate (kg/mm)
0.24
Rate (N/cm)
23.50
Rate - Build Spec (lb/in)
13.42
Rate Tolerance (gm/cm)
239.70
Rate Tolerance (gm/mm)
23.97
Rate Tolerance (kg/cm)
0.24
Rate Tolerance (kg/mm)
0.02
Rate Tolerance (lb/in)
1.34
Rate Tolerance (N/cm)
2.35
Rate Tolerance (N/mm)
0.24
Rate Tolerance - Build Spec (lb/in)
1.34
Total Coils - Build Spec
40.00
Wire Diameter (cm)
0.20
Wire Diameter (inch)
0.08
Wire Diameter (mm)
2.01
Wire Diameter - Build Spec (in)
0.08
Material Short Description
MW
Product Series
Standard Extension Series (metric)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
5.68
Initial Tension (lb)
5.68
Initial Tension (N)
25.25
Initial Tension (kg)
2.57
Initial Tension (gm)
2574.60
Initial Tension Tolerance - Build Spec. (lb)
1.14
Initial Tension Tolerance (lb)
1.14
Initial Tension Tolerance (N)
5.05
Initial Tension Tolerance (kg)
0.51
Initial Tension Tolerance (gm)
514.84
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
36.87
Max Load (lb)
36.87
Max Load (kg)
16.72
Max Load (gm)
16724.20
Max Extended Length - Build Spec. (in)
6.18
Max Extended Length (in)
6.18
Max Extended Length (mm)
157.00
Max Extended Length (cm)
15.70
Body Length - Build Spec. (in)
3.24
Body Length (in)
3.24
Body Length (mm)
82.27
Body Length (cm)
8.23
Loop Inside Diameter - Build Spec. (in)
0.39
Loop Inside Diameter (in)
0.39
Loop Inside Diameter (mm)
9.98
Loop Inside Diameter (cm)
1.00
Loop Position
Inline
Loop Opening - Build Spec. (in)
0.08
Loop Opening (in)
0.08
Loop Opening (mm)
2.01
Loop Opening (cm)
0.20
Max Load (N)
164.01
Inside Diameter - Build Spec (in)
0.39
Model Code
LEM

Standard Extension Series (metric)

Selection to Match Your Needs

Lee Spring LEM200EC 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 14-mm outside diameter (0.551 inch) with 9.98-mm loop inside diameter (0.393 inch) and extends from a free length of 97.99 mm (3.858 inch) to a maximum extended length of 157 mm (6.181 inch). Made from Music Wire with a 2.01-mm wire diameter (0.079 inch), the spring delivers a spring rate of 2.35 N/mm (13.42 lb/inch) through its 40 total coils with an initial tension of 25.248 N (5.676 lb) for predictable extension behavior. The spring supports a maximum load of 164.006 N (36.87 lb) at full extension with a body length of 82.27 mm (3.239 inch). The spring features Inline loop position and Zinc Plate and Bake per ASTM B633 finish for optimal performance.

Extension Springs: Standard Series

The 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:

  • Medical devices
  • Firearms
  • Pharmaceutical delivery devices
  • Lighting and electrical control
  • Petro-chemical processes
  • Communication devices
  • Aerospace
  • Testing and measurement equipment
  • Marine applications
  • Automotive
  • Locks and security devices
  • Precision Instruments
  • Hardware

...and many more applications

274121
Product Extension OD 0.551 in, Length 3.858 in, Music Wire
Product Extension OD 14 mm, Length 97.99 mm, Music Wire
Part Number LEM200EC 04 M
Series Standard Extension Series (metric)
Outside Diameter (inch) 0.551
Outside Diameter (cm) 1.4
Outside Diameter (mm) 14
Wire Diameter (inch) 0.079
Wire Diameter (cm) 0.201
Wire Diameter (mm) 2.01
Max Load (gm) 16724.2
Max Load (lb) 36.87
Max Load (kg) 16.7242
Max Load (N) 164.006
Rate (gm/cm) 2397
Rate (gm/mm) 239.7
Rate (kg/cm) 2.397
Rate (kg/mm) 0.2397
Rate (lb/in) 13.42
Rate (N/cm) 23.5
Rate (N/mm) 2.35
Max Extended Length (cm) 15.7
Max Extended Length (in) 6.181
Max Extended Length (mm) 157
Initial Tension (gm) 2574.6
Initial Tension (kg) 2.5746
Initial Tension (lb) 5.676
Initial Tension (N) 25.248
Free Length (cm) 9.799
Free Length (inch) 3.858
Free Length (mm) 97.99
Material Music Wire
Loop Inside Diameter (cm) 0.998
Loop Inside Diameter (in) 0.393
Loop Inside Diameter (mm) 9.98
Ends Standard Loops
Loop Position Inline
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.079 0.551 0.012 3.858 0.077 40 5.676 1.135 13.42 1.342 6.181 36.87 0.079 3.239 Inline 0.551 0.012 3.858 0.077 40 5.676 1.135 13.42 1.342 6.181 36.87
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Quantity Price
1 - 19 $11.290
20 - 49 $6.950
50 - 99 $3.840
100 - 199 $2.450
200 - 299 $2.332
300 - 399 $2.301
400 - 499 $2.279
500 - 599 $2.261
600 - 699 $2.248
700 - 799 $2.237
800 - 899 $2.226
900 - 999 $2.219
1000 $2.210

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