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Specifications

 

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Physical Dimension

mm cm

Load

N kg gm

 
 

LEM055C 03 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
21.700
Published Stock Code
LEM055C03S
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.21
Rate (kg/cm)
0.21
Rate (lb/in)
1.17
Rate (gm/mm)
20.90
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
2.200
Free Length (inch)
0.866
Free Length (mm)
22.000
Free Length - Build Spec (in)
0.87
Free Length Tolerance (cm)
0.08
Free Length Tolerance (in)
0.03
Free Length Tolerance (mm)
0.76
Free Length Tolerance - Build Spec (in)
0.03
Inside Diameter (cm)
0.52
Inside Diameter (in)
0.20
Inside Diameter (mm)
5.18
Outside Diameter (cm)
0.630
Outside Diameter (in)
0.25
Outside Diameter (mm)
6.30
Outside Diameter - Build Spec (in)
0.25
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)
209.00
Rate (kg/mm)
0.02
Rate (N/cm)
2.05
Rate - Build Spec (lb/in)
1.17
Rate Tolerance (gm/cm)
20.90
Rate Tolerance (gm/mm)
2.09
Rate Tolerance (kg/cm)
0.02
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.12
Rate Tolerance (N/cm)
0.21
Rate Tolerance (N/mm)
0.02
Rate Tolerance - Build Spec (lb/in)
0.12
Total Coils - Build Spec
21.68
Wire Diameter (cm)
0.06
Wire Diameter (inch)
0.02
Wire Diameter (mm)
0.56
Wire Diameter - Build Spec (in)
0.02
Material Short Description
SS
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)
0.16
Initial Tension (lb)
0.16
Initial Tension (N)
0.70
Initial Tension (kg)
0.07
Initial Tension (gm)
71.80
Initial Tension Tolerance - Build Spec. (lb)
0.03
Initial Tension Tolerance (lb)
0.03
Initial Tension Tolerance (N)
0.14
Initial Tension Tolerance (kg)
0.01
Initial Tension Tolerance (gm)
14.35
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
1.65
Max Load (lb)
1.65
Max Load (kg)
0.75
Max Load (gm)
748.10
Max Extended Length - Build Spec. (in)
2.14
Max Extended Length (in)
2.14
Max Extended Length (mm)
54.25
Max Extended Length (cm)
5.43
Body Length - Build Spec. (in)
0.46
Body Length (in)
0.46
Body Length (mm)
11.63
Body Length (cm)
1.16
Loop Inside Diameter - Build Spec. (in)
0.20
Loop Inside Diameter (in)
0.20
Loop Inside Diameter (mm)
5.18
Loop Inside Diameter (cm)
0.52
Loop Position
Random
Loop Opening - Build Spec. (in)
0.02
Loop Opening (in)
0.02
Loop Opening (mm)
0.56
Loop Opening (cm)
0.06
Max Load (N)
7.34
Inside Diameter - Build Spec (in)
0.20
Model Code
LEM

Standard Extension Series (metric)

Selection to Match Your Needs

Lee Spring LEM055C 03 S is a precision extension spring from the Standard Extension Series (metric) series, engineered for applications requiring reliable quality extension springs. This spring features a 6.3-mm outside diameter (0.248 inch) with 5.18-mm loop inside diameter (0.204 inch) and extends from a free length of 22 mm (0.866 inch) to a maximum extended length of 54.25 mm (2.136 inch). Made from Stainless Steel with a 0.56-mm wire diameter (0.022 inch), the spring delivers a spring rate of 0.205 N/mm (1.17 lb/inch) through its 21.7 total coils with an initial tension of 0.704 N (0.1582 lb) for predictable extension behavior. The spring supports a maximum load of 7.336 N (1.6493 lb) at full extension with a body length of 11.63 mm (0.458 inch). 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 (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

268891
Product Extension OD 0.248 in, Length 0.866 in, Stainless Steel
Product Extension OD 6.3 mm, Length 22 mm, Stainless Steel
Part Number LEM055C 03 S
Series Standard Extension Series (metric)
Outside Diameter (inch) 0.248
Outside Diameter (cm) 0.63
Outside Diameter (mm) 6.3
Wire Diameter (inch) 0.022
Wire Diameter (cm) 0.056
Wire Diameter (mm) 0.56
Max Load (gm) 748.1
Max Load (lb) 1.6493
Max Load (kg) 0.7481
Max Load (N) 7.336
Rate (gm/cm) 209
Rate (gm/mm) 20.9
Rate (kg/cm) 0.209
Rate (kg/mm) 0.0209
Rate (lb/in) 1.17
Rate (N/cm) 2.05
Rate (N/mm) 0.205
Max Extended Length (cm) 5.425
Max Extended Length (in) 2.136
Max Extended Length (mm) 54.25
Initial Tension (gm) 71.8
Initial Tension (kg) 0.0718
Initial Tension (lb) 0.1582
Initial Tension (N) 0.704
Free Length (cm) 2.2
Free Length (inch) 0.866
Free Length (mm) 22
Material Stainless Steel
Loop Inside Diameter (cm) 0.518
Loop Inside Diameter (in) 0.204
Loop Inside Diameter (mm) 5.18
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Passivate per ASTM A967
0.022 0.248 0.005 0.866 0.03 21.7 0.1582 0.03164 1.17 0.117 2.136 1.6493 0.022 0.458 Random 0.248 0.005 0.866 0.03 21.7 0.1582 0.03164 1.17 0.117 2.136 1.6493
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Quantity Price
1 - 19 $8.570
20 - 49 $5.170
50 - 99 $2.720
100 - 199 $1.690
200 - 299 $1.404
300 - 399 $1.314
400 - 499 $1.228
500 - 599 $1.155
600 - 699 $1.091
700 - 799 $1.032
800 - 899 $0.987
900 - 999 $0.950
1000 $0.922

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