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Specifications

 

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LHL 750D 12

Cost
$0.00
$0.00
Price
$0.00
Weight
0.25 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Orange Powder Coat
Material
Oil Tempered Chrome Silicon
Total Coils
24.510
Product Series
Published Stock Code
LHL750D12
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
35.03
Rate (kg/cm)
35.72
Rate (lb/in)
200.00
Rate (gm/mm)
3571.60
Weight per Item (lb)
0.25
Material Specification
ASTM A401
Free Length (cm)
13.970
Free Length (inch)
5.500
Free Length (mm)
139.700
Free Length - Build Spec (in)
5.50
Free Length Tolerance (cm)
0.44
Free Length Tolerance (in)
0.18
Free Length Tolerance (mm)
4.45
Free Length Tolerance - Build Spec (in)
0.18
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)
35716.00
Rate (kg/mm)
3.57
Rate (N/cm)
350.27
Rate - Build Spec (lb/in)
200.00
Rate Tolerance (gm/cm)
3571.60
Rate Tolerance (gm/mm)
357.16
Rate Tolerance (kg/cm)
3.57
Rate Tolerance (kg/mm)
0.36
Rate Tolerance (lb/in)
20.00
Rate Tolerance (N/cm)
35.03
Rate Tolerance (N/mm)
3.50
Rate Tolerance - Build Spec (lb/in)
20.00
Rod Diameter (cm)
0.95
Rod Diameter (inch)
0.38
Rod Diameter (mm)
9.53
Solid Height (cm)
9.75
Solid Height (inch)
3.84
Solid Height (mm)
97.54
Total Coils - Build Spec
24.51
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)
3.84
Material Short Description
OTCS
Load at Solid Height (lb)
332.00
Load at Solid Height - Build Spec. (lb)
332.00
Load at Solid Height (N)
1476.81
Load at Solid Height (kg)
150.60
Load at Solid Height (gm)
150595.00
Active Coils - Build Spec.
22.51
Active Coils
22.51
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 12 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 5.5 inch (139.7 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 200 lb/inch (35.027 N/mm) through its 22.51 active coils out of 24.51 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 3.84 inch (97.54 mm) while supporting a maximum load of 332 lb (1476.81 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

413801
Product Compression OD 0.73 in, Length 5.5 in, Oil Tempered Chrome Silicon
Product Compression OD 18.54 mm, Length 139.7 mm, Oil Tempered Chrome Silicon
Part Number LHL 750D 12
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) 5.5
Free Length (cm) 13.97
Free Length (mm) 139.7
Rate (gm/mm) 3571.6
Rate (kg/cm) 35.716
Rate (kg/mm) 3.5716
Rate (lb/inch) 200
Rate (gm/cm) 35716
Rate (N/cm) 350.27
Rate (N/mm) 35.027
Solid Height (inch) 3.84
Solid Height (cm) 9.754
Solid Height (mm) 97.54
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) 150595
Load at Solid Height (kg) 150.595
Load at Solid Height (lb) 332
Load at Solid Height (N) 1476.81
Ends Squared and Ground
Active Coils 22.51
Direction of Wind Factory Option
Finish Orange Powder Coat
Total Coils 24.51
0.156 0.73 0.001 0.001 0.75 0.375 5.5 0.175 24.51 200 20 3.84 332 0.156 5.5 0.73 3.96 18.54 0.04 19.05 9.53 139.7 4.445 35.027 97.54 1476.81
Default View
Side view
Top view
Quantity Price
1 - 24 $12.630
25 - 49 $11.470
50 - 99 $10.630
100 - 199 $9.560
200 - 299 $7.904
300 - 399 $7.217
400 - 499 $6.618
500 - 599 $6.107
600 - 699 $5.681
700 - 799 $5.337
800 - 899 $5.082
900 - 999 $4.910
1000 $4.824

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