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Specifications

 

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Physical Dimension

mm cm

Load

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LHL 750B 02

Cost
$0.00
$0.00
Price
$0.00
Weight
0.04 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Purple Powder Coat
Material
Oil Tempered Chrome Silicon
Total Coils
6.220
Product Series
Published Stock Code
LHL750B02
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
67.43
Rate (kg/cm)
68.75
Rate (lb/in)
385.00
Rate (gm/mm)
6875.33
Weight per Item (lb)
0.04
Material Specification
ASTM A401
Free Length (cm)
3.175
Free Length (inch)
1.250
Free Length (mm)
31.750
Free Length - Build Spec (in)
1.25
Free Length Tolerance (cm)
0.10
Free Length Tolerance (in)
0.04
Free Length Tolerance (mm)
0.99
Free Length Tolerance - Build Spec (in)
0.04
Hole Diameter (cm)
1.91
Hole Diameter (inch)
0.75
Hole Diameter (mm)
19.05
Inside Diameter (cm)
1.21
Inside Diameter (in)
0.48
Inside Diameter (mm)
12.07
Outside Diameter (cm)
1.842
Outside Diameter (in)
0.73
Outside Diameter (mm)
18.42
Outside Diameter - Build Spec (in)
0.73
Rate (gm/cm)
68753.30
Rate (kg/mm)
6.88
Rate (N/cm)
674.26
Rate - Build Spec (lb/in)
385.00
Rate Tolerance (gm/cm)
6875.33
Rate Tolerance (gm/mm)
687.53
Rate Tolerance (kg/cm)
6.88
Rate Tolerance (kg/mm)
0.69
Rate Tolerance (lb/in)
38.50
Rate Tolerance (N/cm)
67.43
Rate Tolerance (N/mm)
6.74
Rate Tolerance - Build Spec (lb/in)
38.50
Rod Diameter (cm)
0.95
Rod Diameter (inch)
0.38
Rod Diameter (mm)
9.53
Solid Height (cm)
1.98
Solid Height (inch)
0.78
Solid Height (mm)
19.81
Total Coils - Build Spec
6.22
Wire Diameter (cm)
0.32
Wire Diameter (inch)
0.13
Wire Diameter (mm)
3.18
Wire Diameter - Build Spec (in)
0.13
Hole Diameter - Build Spec. (in)
0.75
Rod Diameter - Build Spec. (in)
0.38
Rod Diameter Tolerance - Build Spec. (in)
MIN
Rod Diameter Tolerance (in)
MIN
Rod Diameter Tolerance (mm)
MIN
Rod Diameter Tolerance (cm)
MIN
Solid Height - Build Spec. (in)
0.78
Material Short Description
OTCS
Load at Solid Height (lb)
181.00
Load at Solid Height - Build Spec. (lb)
181.00
Load at Solid Height (N)
805.13
Load at Solid Height (kg)
82.10
Load at Solid Height (gm)
82101.60
Active Coils - Build Spec.
4.22
Active Coils
4.22
Active Coils Tolerance - Build Spec.
Reference
Active Coils Tolerance
Reference
Product Series
HEFTY™ Die Spring
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
color
Purple
Inside Diameter Tolerance - Build Spec (in)
Reference
Outside Diameter Tolerance (cm)
Reference
Outside Diameter Tolerance (in)
Reference
Outside Diameter Tolerance (mm)
Reference
Outside Diameter Tolerance - Build Spec (in)
Reference
Inside Diameter - Build Spec (in)
0.48
Outside Diameter Lower Tolerance (in)
0.00
Outside Diameter Upper Tolerance (in)
0.00
Outside Diameter Upper Tolerance (mm)
0.04
Outside Diameter Lower Tolerance (mm)
0.04
Model Code
LHL

HEFTY™ Die Spring Compression Springs

Heavy Duty Compression Springs

Lee Spring LHL 750B 02 is a heavy-duty die compression spring from the HEFTY™ Die Spring series, specifically engineered for demanding industrial applications requiring durabiliy and substantial load capacity. This spring features an 0.725-inch outside diameter (18.42 mm) with a 0.75-inch hole diameter (19.05 mm) and extends to a free length of 1.25 inch (31.75 mm), making it ideal for stamping and die applications. Made from Oil Tempered Chrome Silicon with a 0.125-inch wire diameter (3.18 mm), the spring delivers a spring rate of 385 lb/inch (67.426 N/mm) through its 4.22 active coils out of 6.22 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 0.78 inch (19.81 mm) while supporting a maximum load of 181 lb (805.13 N) at full compression. The spring has Squared and Ground ends and a Purple Powder Coat finish for optimal die spring performance.

About the HEFTY™ Die Spring Series

HEFTY™ Die Springs offer you the economy of round wire and the durability of chrome silicon or music wire ideally suited for any high stress, heavy load application. Great for many applications such as clutches, brakes, farm machinery and aircraft mechanisms. Available in five different types with different load ratings to fit standard diameters.

HEFTY™ Die Spring Compression 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

413391
Product Compression OD 0.725 in, Length 1.25 in, Oil Tempered Chrome Silicon
Product Compression OD 18.42 mm, Length 31.75 mm, Oil Tempered Chrome Silicon
Part Number LHL 750B 02
Series HEFTY™ Die Spring
Outside Diameter (inch) 0.725
Outside Diameter (cm) 1.842
Outside Diameter (mm) 18.42
Hole Diameter (inch) 0.75
Hole Diameter (cm) 1.905
Hole Diameter (mm) 19.05
Rod Diameter (inch) 0.375
Rod Diameter (cm) 0.953
Rod Diameter (mm) 9.53
Free Length (inch) 1.25
Free Length (cm) 3.175
Free Length (mm) 31.75
Rate (gm/mm) 6875.33
Rate (kg/cm) 68.753
Rate (kg/mm) 6.8753
Rate (lb/inch) 385
Rate (gm/cm) 68753.3
Rate (N/cm) 674.26
Rate (N/mm) 67.426
Solid Height (inch) 0.78
Solid Height (cm) 1.981
Solid Height (mm) 19.81
Wire Diameter (inch) 0.125
Wire Diameter (cm) 0.318
Wire Diameter (mm) 3.18
Material Oil Tempered Chrome Silicon
Load at Solid Height (gm) 82101.6
Load at Solid Height (kg) 82.102
Load at Solid Height (lb) 181
Load at Solid Height (N) 805.13
Ends Squared and Ground
Active Coils 4.22
Direction of Wind Factory Option
Finish Purple Powder Coat
Total Coils 6.22
0.125 0.725 0.001 0.001 0.75 0.375 1.25 0.039 6.22 385 38.5 0.78 181 0.125 1.25 0.725 3.18 18.42 0.04 19.05 9.53 31.75 0.991 67.426 19.81 805.13
Default View
Side view
Top view
Quantity Price
1 - 24 $5.570
25 - 49 $4.760
50 - 99 $3.840
100 - 199 $3.200
200 - 299 $2.627
300 - 399 $2.402
400 - 499 $2.204
500 - 599 $2.034
600 - 699 $1.889
700 - 799 $1.778
800 - 899 $1.694
900 - 999 $1.637
1000 $1.606

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