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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LE 018B 12 S

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Passivate per ASTM A967
Material
Stainless Steel
Total Coils
106.800
Published Stock Code
LE018B12S
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.04
Rate (kg/cm)
0.05
Rate (lb/in)
0.25
Rate (gm/mm)
4.50
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
5.715
Free Length (inch)
2.250
Free Length (mm)
57.150
Free Length - Build Spec (in)
2.25
Free Length Tolerance (cm)
0.13
Free Length Tolerance (in)
0.05
Free Length Tolerance (mm)
1.27
Free Length Tolerance - Build Spec (in)
0.05
Inside Diameter (cm)
0.39
Inside Diameter (in)
0.15
Inside Diameter (mm)
3.86
Outside Diameter (cm)
0.478
Outside Diameter (in)
0.19
Outside Diameter (mm)
4.78
Outside Diameter - Build Spec (in)
0.19
Outside Diameter Tolerance (cm)
0.01
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.13
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
45.00
Rate (kg/mm)
0.00
Rate (N/cm)
0.44
Rate - Build Spec (lb/in)
0.25
Rate Tolerance (gm/cm)
4.50
Rate Tolerance (gm/mm)
0.45
Rate Tolerance (kg/cm)
0.00
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.03
Rate Tolerance (N/cm)
0.04
Rate Tolerance (N/mm)
0.00
Rate Tolerance - Build Spec (lb/in)
0.03
Total Coils - Build Spec
106.84
Wire Diameter (cm)
0.05
Wire Diameter (inch)
0.02
Wire Diameter (mm)
0.46
Wire Diameter - Build Spec (in)
0.02
Material Short Description
SS
Product Series
Standard Extension Series (inch)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
0.12
Initial Tension (lb)
0.12
Initial Tension (N)
0.52
Initial Tension (kg)
0.05
Initial Tension (gm)
52.90
Initial Tension Tolerance - Build Spec. (lb)
0.02
Initial Tension Tolerance (lb)
0.02
Initial Tension Tolerance (N)
0.10
Initial Tension Tolerance (kg)
0.01
Initial Tension Tolerance (gm)
10.58
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
1.25
Max Load (lb)
1.25
Max Load (kg)
0.57
Max Load (gm)
566.80
Max Extended Length - Build Spec. (in)
6.78
Max Extended Length (in)
6.78
Max Extended Length (mm)
172.21
Max Extended Length (cm)
17.22
Body Length - Build Spec. (in)
1.95
Body Length (in)
1.95
Body Length (mm)
49.43
Body Length (cm)
4.94
Loop Inside Diameter - Build Spec. (in)
0.15
Loop Inside Diameter (in)
0.15
Loop Inside Diameter (mm)
3.86
Loop Inside Diameter (cm)
0.39
Loop Position
Random
Loop Opening - Build Spec. (in)
0.02
Loop Opening (in)
0.02
Loop Opening (mm)
0.46
Loop Opening (cm)
0.05
Max Load (N)
5.56
Inside Diameter - Build Spec (in)
0.15
Model Code
LE

Standard Extension Series (inch)

Selection to Match Your Needs

Lee Spring LE 018B 12 S is a precision extension spring from the Standard Extension Series (inch), engineered for applications requiring reliable quality extension springs. This spring features a 0.188-inch outside diameter (4.78 mm) with 0.152-inch loop inside diameter (3.86 mm) and extends from a free length of 2.25 inch (57.15 mm) to a maximum extended length of 6.78 inch (172.21 mm). Made from Stainless Steel with a 0.018-inch wire diameter (0.46 mm), the spring delivers a spring rate of 0.25 lb/inch (0.044 N/mm) through its 106.8 total coils with an initial tension of 0.1166 lb (0.519 N). The spring supports a maximum load of 1.2495 lb (5.558 N) at full extension with a body length of 1.946 inch (49.43 mm). The spring features Random loop position and Passivate per ASTM A967 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 (inch) 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

239581
Product Extension OD 0.188 in, Length 2.25 in, Stainless Steel
Product Extension OD 4.78 mm, Length 57.15 mm, Stainless Steel
Part Number LE 018B 12 S
Series Standard Extension Series (inch)
Outside Diameter (inch) 0.188
Outside Diameter (cm) 0.478
Outside Diameter (mm) 4.78
Wire Diameter (inch) 0.018
Wire Diameter (cm) 0.046
Wire Diameter (mm) 0.46
Max Load (gm) 566.8
Max Load (lb) 1.2495
Max Load (kg) 0.5668
Max Load (N) 5.558
Rate (gm/cm) 45
Rate (gm/mm) 4.5
Rate (kg/cm) 0.045
Rate (kg/mm) 0.0045
Rate (lb/in) 0.25
Rate (N/cm) 0.44
Rate (N/mm) 0.044
Max Extended Length (cm) 17.221
Max Extended Length (in) 6.78
Max Extended Length (mm) 172.21
Initial Tension (gm) 52.9
Initial Tension (kg): 0.0529
Initial Tension (lb) 0.1166
Initial Tension (N) 0.519
Free Length (cm) 5.715
Free Length (inch) 2.25
Free Length (mm) 57.15
Material Stainless Steel
Loop Inside Diameter (cm) 0.386
Loop Inside Diameter (in) 0.152
Loop Inside Diameter (mm) 3.86
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Passivate per ASTM A967
0.018 0.188 0.005 2.25 0.05 106.8 0.1166 0.02332 0.25 0.025 6.78 1.2495 0.018 1.946 Random 0.188 0.005 2.25 0.05 106.8 0.1166 0.02332 0.25 0.025 6.78 1.2495
Default View
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Quantity Price
1 - 19 $9.210
20 - 49 $5.600
50 - 99 $2.960
100 - 199 $1.870
200 - 299 $1.575
300 - 399 $1.490
400 - 499 $1.415
500 - 599 $1.345
600 - 699 $1.286
700 - 799 $1.234
800 - 899 $1.191
900 - 999 $1.156
1000 $1.130

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