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Specifications

 

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Physical Dimension

mm cm

Load

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LEM180DF 02 M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.03 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
16.000
Published Stock Code
LEM180DF02M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
6.28
Rate (kg/cm)
6.40
Rate (lb/in)
35.86
Rate (gm/mm)
640.40
Weight per Item (lb)
0.03
Material Specification
ASTM A228
Free Length (cm)
4.399
Free Length (inch)
1.732
Free Length (mm)
43.990
Free Length - Build Spec (in)
1.73
Free Length Tolerance (cm)
0.09
Free Length Tolerance (in)
0.04
Free Length Tolerance (mm)
0.89
Free Length Tolerance - Build Spec (in)
0.04
Inside Diameter (cm)
0.84
Inside Diameter (in)
0.33
Inside Diameter (mm)
8.38
Outside Diameter (cm)
1.199
Outside Diameter (in)
0.47
Outside Diameter (mm)
11.99
Outside Diameter - Build Spec (in)
0.47
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)
6404.00
Rate (kg/mm)
0.64
Rate (N/cm)
62.80
Rate - Build Spec (lb/in)
35.86
Rate Tolerance (gm/cm)
640.40
Rate Tolerance (gm/mm)
64.04
Rate Tolerance (kg/cm)
0.64
Rate Tolerance (kg/mm)
0.06
Rate Tolerance (lb/in)
3.59
Rate Tolerance (N/cm)
6.28
Rate Tolerance (N/mm)
0.63
Rate Tolerance - Build Spec (lb/in)
3.59
Total Coils - Build Spec
16.00
Wire Diameter (cm)
0.18
Wire Diameter (inch)
0.07
Wire Diameter (mm)
1.80
Wire Diameter - Build Spec (in)
0.07
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)
4.82
Initial Tension (lb)
4.82
Initial Tension (N)
21.43
Initial Tension (kg)
2.19
Initial Tension (gm)
2185.40
Initial Tension Tolerance - Build Spec. (lb)
0.96
Initial Tension Tolerance (lb)
0.96
Initial Tension Tolerance (N)
4.29
Initial Tension Tolerance (kg)
0.44
Initial Tension Tolerance (gm)
437.27
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
31.70
Max Load (lb)
31.70
Max Load (kg)
14.38
Max Load (gm)
14379.10
Max Extended Length - Build Spec. (in)
2.48
Max Extended Length (in)
2.48
Max Extended Length (mm)
62.99
Max Extended Length (cm)
6.30
Body Length - Build Spec. (in)
1.21
Body Length (in)
1.21
Body Length (mm)
30.66
Body Length (cm)
3.07
Loop Inside Diameter - Build Spec. (in)
0.33
Loop Inside Diameter (in)
0.33
Loop Inside Diameter (mm)
8.38
Loop Inside Diameter (cm)
0.84
Loop Position
Inline
Loop Opening - Build Spec. (in)
0.07
Loop Opening (in)
0.07
Loop Opening (mm)
1.80
Loop Opening (cm)
0.18
Max Load (N)
141.01
Inside Diameter - Build Spec (in)
0.33
Model Code
LEM

Extension Spring: OD 11.99 mm, FL 43.99 mm, Music Wire

Standard Extension Series (metric)

Selection to Match Your Needs

Lee Spring LEM180DF 02 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 11.99-mm outside diameter (0.472 inch) with 8.38-mm loop inside diameter (0.33 inch) and extends from a free length of 43.99 mm (1.732 inch) to a maximum extended length of 62.99 mm (2.48 inch). Made from Music Wire with a 1.8-mm wire diameter (0.071 inch), the spring delivers a spring rate of 6.28 N/mm (35.86 lb/inch) through its 16 total coils with an initial tension of 21.432 N (4.818 lb) for predictable extension behavior. The spring supports a maximum load of 141.009 N (31.7 lb) at full extension with a body length of 30.66 mm (1.207 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

273821
Product Extension OD 0.472 in, Length 1.732 in, Music Wire
Product Extension OD 11.99 mm, Length 43.99 mm, Music Wire
Part Number LEM180DF 02 M
Series Standard Extension Series (metric)
Outside Diameter (inch) 0.472
Outside Diameter (cm) 1.199
Outside Diameter (mm) 11.99
Wire Diameter (inch) 0.071
Wire Diameter (cm) 0.18
Wire Diameter (mm) 1.8
Max Load (gm) 14379.1
Max Load (lb) 31.7
Max Load (kg) 14.3791
Max Load (N) 141.009
Rate (gm/cm) 6404
Rate (gm/mm) 640.4
Rate (kg/cm) 6.404
Rate (kg/mm) 0.6404
Rate (lb/in) 35.86
Rate (N/cm) 62.8
Rate (N/mm) 6.28
Max Extended Length (cm) 6.299
Max Extended Length (in) 2.48
Max Extended Length (mm) 62.99
Initial Tension (gm) 2185.4
Initial Tension (kg) 2.1854
Initial Tension (lb) 4.818
Initial Tension (N) 21.432
Free Length (cm) 4.399
Free Length (inch) 1.732
Free Length (mm) 43.99
Material Music Wire
Loop Inside Diameter (cm) 0.838
Loop Inside Diameter (in) 0.33
Loop Inside Diameter (mm) 8.38
Ends Standard Loops
Loop Position Inline
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.071 0.472 0.012 1.732 0.035 16 4.818 0.964 35.86 3.586 2.48 31.7 0.071 1.207 Inline 0.472 0.012 1.732 0.035 16 4.818 0.964 35.86 3.586 2.48 31.7
Default View
Side view
Top view
Quantity Price
1 - 19 $9.870
20 - 49 $6.030
50 - 99 $3.200
100 - 199 $2.040
200 - 299 $1.865
300 - 399 $1.795
400 - 499 $1.748
500 - 599 $1.711
600 - 699 $1.681
700 - 799 $1.654
800 - 899 $1.632
900 - 999 $1.612
1000 $1.594

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on Stock Springs in the Continental United States

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on all Music Wire Stock Springs

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on all Standard Stock Compression Springs

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on Stock and Custom Springs

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on all Stock Springs and Custom Springs

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at all Locations

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allows Lee Spring to find solutions that meet your
geographic requirements wherever your business
takes you in the world