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Specifications

 

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Physical Dimension

mm cm

Load

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LEM180CF 03 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
25.000
Published Stock Code
LEM180CF03M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
11.50
Rate (kg/cm)
11.73
Rate (lb/in)
65.67
Rate (gm/mm)
1172.70
Weight per Item (lb)
0.03
Material Specification
ASTM A228
Free Length (cm)
5.540
Free Length (inch)
2.181
Free Length (mm)
55.400
Free Length - Build Spec (in)
2.18
Free Length Tolerance (cm)
0.11
Free Length Tolerance (in)
0.04
Free Length Tolerance (mm)
1.12
Free Length Tolerance - Build Spec (in)
0.04
Inside Diameter (cm)
0.54
Inside Diameter (in)
0.21
Inside Diameter (mm)
5.38
Outside Diameter (cm)
0.899
Outside Diameter (in)
0.35
Outside Diameter (mm)
8.99
Outside Diameter - Build Spec (in)
0.35
Outside Diameter Tolerance (cm)
0.03
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.25
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
11727.00
Rate (kg/mm)
1.17
Rate (N/cm)
115.01
Rate - Build Spec (lb/in)
65.67
Rate Tolerance (gm/cm)
1172.70
Rate Tolerance (gm/mm)
117.27
Rate Tolerance (kg/cm)
1.17
Rate Tolerance (kg/mm)
0.12
Rate Tolerance (lb/in)
6.57
Rate Tolerance (N/cm)
11.50
Rate Tolerance (N/mm)
1.15
Rate Tolerance - Build Spec (lb/in)
6.57
Total Coils - Build Spec
25.00
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)
5.95
Initial Tension (lb)
5.95
Initial Tension (N)
26.47
Initial Tension (kg)
2.70
Initial Tension (gm)
2699.40
Initial Tension Tolerance - Build Spec. (lb)
1.19
Initial Tension Tolerance (lb)
1.19
Initial Tension Tolerance (N)
5.29
Initial Tension Tolerance (kg)
0.54
Initial Tension Tolerance (gm)
539.78
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
40.47
Max Load (lb)
40.47
Max Load (kg)
18.36
Max Load (gm)
18357.20
Max Extended Length - Build Spec. (in)
2.71
Max Extended Length (in)
2.71
Max Extended Length (mm)
68.81
Max Extended Length (cm)
6.88
Body Length - Build Spec. (in)
1.85
Body Length (in)
1.85
Body Length (mm)
46.89
Body Length (cm)
4.69
Loop Inside Diameter - Build Spec. (in)
0.21
Loop Inside Diameter (in)
0.21
Loop Inside Diameter (mm)
5.38
Loop Inside Diameter (cm)
0.54
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)
180.02
Inside Diameter - Build Spec (in)
0.21
Model Code
LEM

Standard Extension Series (metric)

Selection to Match Your Needs

Lee Spring LEM180CF 03 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 8.99-mm outside diameter (0.354 inch) with 5.38-mm loop inside diameter (0.212 inch) and extends from a free length of 55.4 mm (2.181 inch) to a maximum extended length of 68.81 mm (2.709 inch). Made from Music Wire with a 1.8-mm wire diameter (0.071 inch), the spring delivers a spring rate of 11.501 N/mm (65.67 lb/inch) through its 25 total coils with an initial tension of 26.471 N (5.951 lb) for predictable extension behavior. The spring supports a maximum load of 180.02 N (40.47 lb) at full extension with a body length of 46.89 mm (1.846 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

273781
Product Extension OD 0.354 in, Length 2.181 in, Music Wire
Product Extension OD 8.99 mm, Length 55.4 mm, Music Wire
Part Number LEM180CF 03 M
Series Standard Extension Series (metric)
Outside Diameter (inch) 0.354
Outside Diameter (cm) 0.899
Outside Diameter (mm) 8.99
Wire Diameter (inch) 0.071
Wire Diameter (cm) 0.18
Wire Diameter (mm) 1.8
Max Load (gm) 18357.2
Max Load (lb) 40.47
Max Load (kg) 18.3572
Max Load (N) 180.02
Rate (gm/cm) 11727
Rate (gm/mm) 1172.7
Rate (kg/cm) 11.727
Rate (kg/mm) 1.1727
Rate (lb/in) 65.67
Rate (N/cm) 115.01
Rate (N/mm) 11.501
Max Extended Length (cm) 6.881
Max Extended Length (in) 2.709
Max Extended Length (mm) 68.81
Initial Tension (gm) 2699.4
Initial Tension (kg) 2.6994
Initial Tension (lb) 5.951
Initial Tension (N) 26.471
Free Length (cm) 5.54
Free Length (inch) 2.181
Free Length (mm) 55.4
Material Music Wire
Loop Inside Diameter (cm) 0.538
Loop Inside Diameter (in) 0.212
Loop Inside Diameter (mm) 5.38
Ends Standard Loops
Loop Position Inline
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.071 0.354 0.01 2.181 0.044 25 5.951 1.19 65.67 6.567 2.709 40.47 0.071 1.846 Inline 0.354 0.01 2.181 0.044 25 5.951 1.19 65.67 6.567 2.709 40.47
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Quantity Price
1 - 19 $9.570
20 - 49 $5.810
50 - 99 $3.100
100 - 199 $1.960
200 - 299 $1.840
300 - 399 $1.798
400 - 499 $1.769
500 - 599 $1.744
600 - 699 $1.727
700 - 799 $1.711
800 - 899 $1.697
900 - 999 $1.684
1000 $1.673

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