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Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Heavy Load【1-100 Pieces Per Package】 (Part Numbers)

Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Heavy Load

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  • Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Heavy Load
  • Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Heavy Load
  • Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Heavy Load
  • Volume Discount

[Features]·This is an inner diameter standard type spring. Note that this product is manufactured with priority given to the inner diameter tolerance. ·Although it is a stainless steel spring, it is magnetic. Please note.

  • RoHS

Economy Round Wire Coil Springs, Heavy Load

Heavy Load Sturdy Reliable

- Engineered for high-load applications without breaking the bank.

- Choose from a wide range of diameters and lengths to fit your needs.

- Built with durable materials for superior performance.

- Tailor the spring’s specifications to match your requirements.

- Designed for precision and longevity in demanding conditions.

Economy Precision Index Plunger with Pilot (h7 Tolerance
MISUMI Economy Logo

MISUMI Standard
MISUMI Standard

Cheaper Price
Cheaper Price

Product Variety
Product Variety

3D CAD
3D CAD Support

 
Product Overview
 
♢When purchasing of Round Wire Springs, please note that this spring is the inner diameter standard type, manufactured with priority to the inner diameter tolerance, and suitable for shaft installation occasions.
♢Stainless steel springs are also magnetic. Please be careful.
 
Dimensional Drawing
 
Product Drawings
 
Inner Diameter Dφ8 or Less Round Wire Springs Free Length L50 or Less±1mm
 φAbove 10 Round Wire Springs  Above 60±2mm
 
Material of Round Wire Springs
Material SUS304-WPB Spring Constant ±10%
 
Specification Table
 
C-VUL: Fmax. (allowable displacement) = L×40%
The inner diameter standard type gives priority to guaranteeing the inner diameter, while the outer diameter is for reference only.
TypeCoil O.D. D - Free Length LOuter Diameter
D1
Wire Diameter
d
F
max.
N{kgf}
max.
Reference
PitchSolid LengthTotal Number of Rolls
C-VUL5 -156.20.665.88{0.60}2.54.87
 2087.84{0.80}3.3
 256.40.7109.80{1.00}2.39.112
6 -157.40.765.88{0.60}2.16.38
 2087.84{0.80}2.9
 257.60.8109.80{1.00}2.310.412
 301211.76{1.20}2.7
 351413.72{1.40}3.2
 407.80.91615.68{1.60}2.516.217
8 -209.80.987.84{0.80}2.49.59.5
 25109.80{1.00}2.9
 3010.01.01211.76{1.20}2.514.013
 3510.01.01413.72{1.40}2.914.013
 6010.41.22423.52{2.40}2.728.823
10 -2012.01.087.84{0.80}3.18.57.5
 25109.80{1.00}3.8
 3012.21.11211.76{1.20}3.212.710.5
 351413.72{1.40}3.7
 4012.21.11615.68{1.60}4.212.710.5
12 -2514.41.2109.80{1.00}2.912.69.5
 351413.72{1.40}4.1
 5514.81.42221.56{2.20}4.121.714.5
16   -5019.01.52019.60{2.00}5.915.89.5

C-VUM: Fmax. (allowable displacement) = L×35%
The inner diameter standard type gives priority to guaranteeing the inner diameter, while the outer diameter is for reference only.
TypeCoil O.D. D - Free Length LOuter Diameter
D1
Wire Diameter
d
F
max.
N{kgf}
max.
Reference
PitchSolid LengthTotal Number of Rolls
C-VUM5 -156.60.85.315.39{1.57}2.36.87.5
 206.80.97.020.58{2.10}1.811.712
 407.01.014.041.16{4.20}3.214.513.5
6 -157.80.95.315.39{1.57}2.37.77.5
 207.020.58{2.10}3.0
 258.01.08.825.68{2.62}2.81110
 3010.530.87{3.15}3.3
8 -2010.21.17.020.58{2.10}3.38.87
 258.825.68{2.62}4.2
 3010.21.110.530.87{3.15}5.08.87
 3510.61.312.335.97{3.67}3.515.611
 4010.61.314.041.16{4.20}4.015.611
10 -2012.41.27.020.58{2.10}4.08.46
 2512.61.38.825.68{2.62}4.210.47
 3010.530.87{3.15}5.0
 40131.514.041.16{4.20}3.818.811.5
12 -2514.81.48.825.68{2.62}5.09.86
16 -3519.61.812.335.97{3.67}5.814.47
Calculation method of laps (reference value):Total number of laps = solid length ÷ wire diameter (d)-1; Effective laps=total number of laps-2
The number of laps is a reference value. There will be some deviations among batches.
The solid length is a reference value. There will be slight differences among batches. Moreover, if it is used under the limit condition of the solid length, it may cause the spring to be deformed or be damaged after using only a limited number of times.
Be sure to use within the allowable displacement Fmax.(mm).
kgf (load)=N/mm (spring constant)×0.101972×F (displacement); {kgf}=N×0.101972

C-NWL: Fmax. (allowable deflection)=L×40%
TypeCoil O.D. D - Free Length LOuter Diameter
D1
Wire Diameter
d
F
max.
N{kgf}
max.
Spring Constant
N/mm{kgf/mm}
Reference
Compression Length
C-NWL6.5-308.10.81213.7{1.4}1.1{0.12}9.6
 35141.0{0.10}10.8
 40160.9{0.09}12
 45180.8{0.08}13.2
 50200.7{0.07}14.4
8.5-3510.511420.6{2.1}1.5{0.15}10.8
 40161.3{0.13}12
 45181.1{0.12}13
16.6-6019.81.62427.5{2.8}1.1{0.12}20
C-NWL: Both ends are ground.

C-NWM: Fmax. (allowable deflection)=L×32%
TypeCoil O.D. D - Free Length LOuter Diameter
D1
Wire Diameter
d
F
max.
N{kgf}
max.
Spring Constant
N/mm{kgf/mm}
Reference
Compression Length
C-NWM6.5-408.5112.820.6{2.1}1.6{0.16}17.5
 4514.41.4{0.15}19.5
 50161.3{0.13}21
13.6-3516.81.611.234.3{3.5}3.1{0.31}14.4
 50162.1{0.22}18.4
 6019.21.8{0.18}20.8
C-NWM: Both ends are ground.

■Spring Constant  N/mm {kgf/mm}
TypeC-VUYC-VURC-VUFC-VUL
D
3 0.098
{0.01}
  0.29
{0.03}
  0.49
{0.05}
  0.98
{0.10}
 
4        
5        
6        
8 0.196
{0.02}
       
10        
12        
16        
Fmax.F=L×Fa%F=L×60%F=L×45%F=L×40%
 
Product Features
 
Different from ordinary springs on the market, MISUMI Round Wire Springs are more precise and refined, divided into the inner diameter standard type and the outer diameter standard type, the former of which is manufactured giving priority to the inner diameter tolerance while the latter is manufactured giving priority to the outer diameter tolerance.

Select an appropriate Round Wire Springs type according to the actual installation situation, and refer to the published content for the specific inner and outer diameter tolerance values.
* The solid length is a reference value. If it is used under the limit condition of the solid length, the spring may be deformed, or damaged after using only a limited number of times. Therefore, use within the allowable displacement Fmax.(mm).
To increase the usage count, it is recommended to use the spring up to 70% of the allowable displacement Fmax..
Inner Diameter Installation Diagram
Installation Diagram of Inner Diameter Standard Type Round Wire Coil Spring
 
Precautions
 
Precautions for use of Round Wire Springs
Operating temperature of Round Wire Springs
SWP-A……Normal temperature (0~40℃)
Stainless steel……-10~100℃
Spring oil tempered steel wire……Normal temperature (0~40℃)
* If the spring is used under conditions exceeding the above temperature, the load value may decrease due to usage conditions.
* When used in an environment with high and low temperature differences and humidity such as outdoors, it is recommended to choose stainless steel products.
* Heat-resistant springs can also be used. For details, refer to the Plastic Mold Components Catalog.
Stainless steel springs are also magnetic. Please be careful.
 
Example of Use
 
Example of Use for Springs

Hole Reference Positioning Mechanism
A Round Wire Springs is mechanism for positioning the workpiece based on the hole reference.
Loosening during positioning can be reduced by using a tapered pin to eliminate the deviation caused by the tolerance of each workpiece hole. Select the compression spring to move from the beginning of the positioning contact with the workpiece.
 
Related Products
 
Related ProductsRelated ProductsRelated Products
(Economy series) Round Wire Springs - Outer Diameter Standard Stainless Steel, Ultra Light Load, Spring Constant 0.05 to 0.98 N/mm(Economy series) Round Wire Springs - Inner Diameter Standard Stainless Steel, Light Load, Spring Constant 0.29 to 0.49 N/mm(Economy series) Round Wire Springs - Outer Diameter Standard Stainless Steel, Ultra Heavy Load, Spring Constant 4.9 to 29.4N/mm
Reason for Recommendation: MISUMI Basic Round Wire Springs, Outer Diameter Standard Type, Ultra Light Load TypeReason for Recommendation: MISUMI Basic Round Wire Springs, Inner Diameter Standard Type, Light Load TypeReason for Recommendation: MISUMI Basic Round Wire Springs, Outer Diameter Standard Type, Ultra Heavy Load Type

Part Number 

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Part Number
C-VUM6-20-PACK
C-VUM6-25
C-VUM6-25-PACK
C-VUM6-30
C-VUM6-30-PACK
C-VUM8-20
C-VUM8-20-PACK
C-VUM8-25
C-VUM8-25-PACK
C-VUM8-30
C-VUM8-30-PACK
C-VUM8-35
C-VUM8-35-PACK
C-VUM8-40
C-VUM8-40-PACK
C-VUM8-50
C-VUM8-50-PACK
C-VUM10-20
C-VUM10-20-PACK
C-VUM10-25
C-VUM10-25-PACK
C-VUM10-30
C-VUM10-30-PACK
C-VUM10-40
C-VUM10-40-PACK
C-VUM10-45-PACK
C-VUM12-25
C-VUM12-25-PACK
C-VUM12-30
C-VUM12-30-PACK
C-VUM16-35
C-VUM16-35-PACK
Part NumberStandard Unit PriceNumber of pc(s). included in pkg.Minimum order quantityVolume DiscountDays to ShipFree Length L
(mm)
Inner Dia. D-2d (or D)
(Ø)
Outer Dia. D (or D1)
(Ø)
Spring Constant
(N/mm)
Allowable Load (Configurable Range)
(N)
Material Wire Dia.
(Ø)
Height H2 at Allowable Load
(mm)
Allowable Load P2
(N)
End Face Condition Total Number of Turns N Solid Length
(mm)
Allowable Displacement
(mm)
Sales Package

MYR 150.87

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 20-6-----------

MYR 2.57

1 Piece(s)Available 1 Day(s) 25682.9416.01~30.00SUS304-WPB116.2525.68Grinding Processing10118.75Single Item

MYR 189.83

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 25-6-----------

MYR 2.69

1 Piece(s)Available 1 Day(s) 30682.9430.01~50.00SUS304-WPB119.530.87Grinding Processing101110.5Single Item

MYR 204.87

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 30-6-----------

MYR 1.91

1 Piece(s)Available 1 Day(s) 20810.22.9416.01~30.00SUS304-WPB1.11320.58Grinding Processing78.87Single Item

MYR 156.09

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 20-8-----------

MYR 2.69

1 Piece(s)Available 1 Day(s) 25810.22.9416.01~30.00SUS304-WPB1.116.2525.68Grinding Processing78.88.75Single Item

MYR 202.94

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 25-8-----------

MYR 2.20

100 Piece(s)Available 10 Day(s) 30810.22.94-SUS304-WPB1.119.530.87Grinding Processing-8.810.5Single Item

MYR 196.52

100 Pieces Per Package

1 Pack(s)Available 11 Day(s) 30-8-----------

MYR 2.70

100 Piece(s)Available 10 Day(s) 35810.62.94-SUS304-WPB1.322.735.97Grinding Processing-15.612.3Single Item

MYR 235.41

100 Pieces Per Package

1 Pack(s)Available 11 Day(s) 35-8-----------

MYR 2.90

100 Piece(s)Available 10 Day(s) 40810.62.94-SUS304-WPB1.32641.16Grinding Processing-15.614Single Item

MYR 251.29

100 Pieces Per Package

1 Pack(s)Available 11 Day(s) 40-8-----------

MYR 4.44

100 Piece(s)Available 11 Day(s) 50810.62.94-SUS304-WPB1.332.551.45Grinding Processing-15.617.5Single Item

MYR 281.61

100 Pieces Per Package

1 Pack(s) 11 Day(s) 50-8-----------

MYR 1.93

1 Piece(s)Available 1 Day(s) 201012.42.9416.01~30.00SUS304-WPB1.21320.58Grinding Processing68.47Single Item

MYR 165.96

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 20-10-----------

MYR 2.44

1 Piece(s)Available 1 Day(s) 251012.62.9416.01~30.00SUS304-WPB1.316.2525.68Grinding Processing710.48.75Single Item

MYR 182.89

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 25-10-----------

MYR 2.57

1 Piece(s)Available 1 Day(s) 301012.62.9430.01~50.00SUS304-WPB1.319.530.87Grinding Processing710.410.5Single Item

MYR 191.40

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 30-10-----------

MYR 3.28

100 Piece(s)Available 10 Day(s) 4010132.94-SUS304-WPB1.52641.16Grinding Processing-18.814Single Item

MYR 280.89

100 Pieces Per Package

1 Pack(s)Available 11 Day(s) 40-10-----------

MYR 241.90

100 Pieces Per Package

1 Pack(s)Available 13 Day(s) 4510132.94-SUS304-WPB1.529.246.26Grinding Processing-18.815.8Package

MYR 2.06

100 Piece(s)Available 10 Day(s) 251214.82.94-SUS304-WPB1.416.225.68Grinding Processing-9.88.8Single Item

MYR 183.09

100 Pieces Per Package

1 Pack(s)Available 11 Day(s) 25-12-----------

MYR 3.28

100 Piece(s)Available 11 Day(s) 301214.82.94-SUS304-WPB1.419.530.87Grinding Processing-9.810.5Single Item

MYR 193.20

100 Pieces Per Package

1 Pack(s) 11 Day(s) 30-12-----------

MYR 4.19

1 Piece(s)Available 1 Day(s) 351619.62.9430.01~50.00SUS304-WPB1.822.7535.97Grinding Processing714.412.25Single Item

MYR 349.72

100 Pieces Per Package

1 Pack(s)Available 6 Day(s) 35-16-----------

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Frequently asked question (FAQ)

Question: How long is the life of a basic round wire coil spring?
Answer: Unfortunately, there are no specific test values as reference regarding the life of a round wire coil spring because there is individual difference to a certain extent and the installation conditions are complicated.
The usage count varies with the operating temperature, environment, and amount of deformation. To increase the usage count, it is recommended to use the spring up to 70% of the allowable displacement Fmax..
Question: What are the JIS standards for general spring-related materials?
Answer: Piano wires: JIS G 3522
Iron wires: JIS G 3532
Hard drawn steel wires: JIS G 3521
Stainless steel wires for springs: JIS G 4313
Question: What influence will the usage without a spring rail have on the spring?
Answer: The usage without a spring rail will cause buckling of the spring, bending of its body and other problems, leading to breakage due to high stress locally generated on the inner side of the bending part. To ensure the service life of the spring, install the spring using the shaft, outer diameter guide rail, etc.
*Basically, it is ideal to use the intermediate shaft of the inner diameter side guide rail by passing it through from the upper surface to the lower surface.
Question: What influence will the usage count of more than 300,000 times beyond the maximum displacement (when used close to the solid length) have on the spring?
Answer: The usage count of more than 300,000 times beyond the maximum displacement (when used close to the solid length) will cause high stress breakage above the calculated value on the section. In addition, near the solid length, the effective coil part will gradually get close and the spring constant will increase. Therefore, be sure to use within the allowable displacement Fmax.(mm).
Question: What is the difference between a piano steel wire spring and a hard drawn steel wire spring?
Answer: There is little difference in appearance between the two materials. In short, the piano wire is an advanced material, and the hard drawn steel wire is a general material.
The piano wire is often used as a spring for precision machinery while the hard drawn steel wire is mostly used as a peripheral spring for groceries or blinds.
They are both high-carbon steels with almost the same chemical composition. The production of piano wires is time-consuming and they are expensive because there is additional standardized management and inspection of impurities, the depth of surface scars, and the depth of decarburized layer.
Although the subtle difference is invisible to the naked eye, it has a great influence on the quality of the spring.

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