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Specifications

 

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LHL 750D 09

Cost
$0.00
$0.00
Price
$0.00
Weight
0.18 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Orange Powder Coat
Material
Oil Tempered Chrome Silicon
Total Coils
17.800
Product Series
Published Stock Code
LHL750D09
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
49.91
Rate (kg/cm)
50.90
Rate (lb/in)
285.00
Rate (gm/mm)
5089.53
Weight per Item (lb)
0.18
Material Specification
ASTM A401
Free Length (cm)
10.160
Free Length (inch)
4.000
Free Length (mm)
101.600
Free Length - Build Spec (in)
4.00
Free Length Tolerance (cm)
0.36
Free Length Tolerance (in)
0.14
Free Length Tolerance (mm)
3.56
Free Length Tolerance - Build Spec (in)
0.14
Hole Diameter (cm)
1.91
Hole Diameter (inch)
0.75
Hole Diameter (mm)
19.05
Inside Diameter (cm)
1.06
Inside Diameter (in)
0.42
Inside Diameter (mm)
10.62
Outside Diameter (cm)
1.854
Outside Diameter (in)
0.73
Outside Diameter (mm)
18.54
Outside Diameter - Build Spec (in)
0.73
Rate (gm/cm)
50895.30
Rate (kg/mm)
5.09
Rate (N/cm)
499.13
Rate - Build Spec (lb/in)
285.00
Rate Tolerance (gm/cm)
5089.53
Rate Tolerance (gm/mm)
508.95
Rate Tolerance (kg/cm)
5.09
Rate Tolerance (kg/mm)
0.51
Rate Tolerance (lb/in)
28.50
Rate Tolerance (N/cm)
49.91
Rate Tolerance (N/mm)
4.99
Rate Tolerance - Build Spec (lb/in)
28.50
Rod Diameter (cm)
0.95
Rod Diameter (inch)
0.38
Rod Diameter (mm)
9.53
Solid Height (cm)
7.09
Solid Height (inch)
2.79
Solid Height (mm)
70.87
Total Coils - Build Spec
17.80
Wire Diameter (cm)
0.40
Wire Diameter (inch)
0.16
Wire Diameter (mm)
3.96
Wire Diameter - Build Spec (in)
0.16
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)
2.79
Material Short Description
OTCS
Load at Solid Height (lb)
344.90
Load at Solid Height - Build Spec. (lb)
344.90
Load at Solid Height (N)
1534.19
Load at Solid Height (kg)
156.45
Load at Solid Height (gm)
156447.00
Active Coils - Build Spec.
15.80
Active Coils
15.80
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
Orange
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)
0.42
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 750D 09 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 0.73-inch outside diameter (18.54 mm) with a 0.75-inch hole diameter (19.05 mm) and extends to a free length of 4 inch (101.6 mm), making it ideal for stamping and die applications. Made from Oil Tempered Chrome Silicon with a 0.156-inch wire diameter (3.96 mm), the spring delivers a spring rate of 285 lb/inch (49.913 N/mm) through its 15.8 active coils out of 17.8 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 2.79 inch (70.87 mm) while supporting a maximum load of 344.9 lb (1534.19 N) at full compression. The spring has Squared and Ground ends and a Orange 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

413771
Product Compression OD 0.73 in, Length 4 in, Oil Tempered Chrome Silicon
Product Compression OD 18.54 mm, Length 101.6 mm, Oil Tempered Chrome Silicon
Part Number LHL 750D 09
Series HEFTY™ Die Spring
Outside Diameter (inch) 0.73
Outside Diameter (cm) 1.854
Outside Diameter (mm) 18.54
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) 4
Free Length (cm) 10.16
Free Length (mm) 101.6
Rate (gm/mm) 5089.53
Rate (kg/cm) 50.895
Rate (kg/mm) 5.0895
Rate (lb/inch) 285
Rate (gm/cm) 50895.3
Rate (N/cm) 499.13
Rate (N/mm) 49.913
Solid Height (inch) 2.79
Solid Height (cm) 7.087
Solid Height (mm) 70.87
Wire Diameter (inch) 0.156
Wire Diameter (cm) 0.396
Wire Diameter (mm) 3.96
Material Oil Tempered Chrome Silicon
Load at Solid Height (gm) 156447
Load at Solid Height (kg) 156.447
Load at Solid Height (lb) 344.9
Load at Solid Height (N) 1534.19
Ends Squared and Ground
Active Coils 15.8
Direction of Wind Factory Option
Finish Orange Powder Coat
Total Coils 17.8
0.156 0.73 0.001 0.001 0.75 0.375 4 0.14 17.8 285 28.5 2.79 344.9 0.156 4 0.73 3.96 18.54 0.04 19.05 9.53 101.6 3.556 49.913 70.87 1534.19
Default View
Side view
Top view
Quantity Price
1 - 24 $9.280
25 - 49 $8.230
50 - 99 $7.440
100 - 199 $6.550
200 - 299 $5.397
300 - 399 $4.932
400 - 499 $4.523
500 - 599 $4.174
600 - 699 $3.882
700 - 799 $3.647
800 - 899 $3.473
900 - 999 $3.355
1000 $3.296

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