How long is the life of a basic round wire coil spring?

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..

What are the JIS standards for general spring-related materials?

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

What influence will the usage without a spring rail have on the spring?

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 spring on the intermediate shaft of the inner diameter side guide rail, passing it through from the upper surface to the lower surface.

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?

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).

What is the difference between a piano steel wire spring and a hard drawn steel wire spring?

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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Part number has not been determine

(4 Part Numbers Available)

Configure Remaining SpecificationsĐịnh cấu hình các thông số còn lại

Part Number CompleteĐã hoàn thành

C-VUF6-15

Free Length L Inner Dia. D-2d (or D) Outer Dia. D (or D1) Height with the max. load applied ([Free Length] – [Allowable Deflection]) Spring Constant Allowable Load (Configurable Range) Max. Load Wire Dia. Total Coils Solid Length Allowable Displacement type End Surface Status CAD Days to Ship

Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước

Free Length L(mm)
15

20

25

30

35

40
ClearTrống
Inner Dia. D-2d (or D)(Ø)
5

6

8

10

12

16
ClearTrống
Outer Dia. D (or D1)(Ø)
5.9

6

7

7.1

7.2

9.3

9.4

11.4

11.5

11.6

11.8

13.6

18
ClearTrống
Height with the max. load applied ([Free Length] – [Allowable Deflection])(mm)
6

8

8.2

10

11

12

13.7

14

16

22
ClearTrống
Spring Constant(N/mm)
0.29

0.49
ClearTrống
Allowable Load (Configurable Range)(N)
- 1.51~4.50
- 4.51~8.50
- 8.51~16.00
ClearTrống
Max. Load(N)
2.65

3.33

3.53

4.41

5.29

5.49

6.17

7.06

8.82
ClearTrống
Wire Dia.(Ø)
0.45

0.5

0.55

0.6

0.65

0.7

0.75

0.8

0.9

1
ClearTrống
Total Coils
7.6

8

8.5

9

10

10.1

10.5

11.3

12

12.1

13

14

16
ClearTrống
Solid Length(mm)
4.3

5

6

7.2

7.5

8.3

8.6

9.5

9.8

9.9

10.2

10.4
ClearTrống
Allowable Displacement(mm)
6.8

9

11.3

12

15

18

21

24
ClearTrống
type
- C-VUF
- C-VUR
ClearTrống
End Surface Status
- With Grinding
- Without Grinding
ClearTrống
CADCAD
- 2D
- 3D
ClearTrống

Days to ShipSố ngày giao hàng

Alltất cả các

Same day
ClearTrống

Specify AlterationsChỉ định thay đổi

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

Name: Round Wire Coil Springs, Defection I.D. Referenced, Stainless Steel, Light Load
Brand: MISUMI
Availability: InStock

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Brand :

MISUMI

MiSUMi Economy

MISUMI

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Total Price :

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**RoHS Compliant is available for some part numbers.
Please contact with MISUMI for detail effective date.

Product Description

This is an economy item, The price is cheaper than the MISUMI standard product.

Economy Round Wire Coil Springs

Stainless Steel Light Load Reliable

- Discover our Economy Series Round Wire Coil Springs.

- Superior strength with corrosion resistance for lasting performance.

- Choose from various specifications for your needs.

- Perfect for applications where precise deflection and load control are crucial.

- Same-day shipping available to keep your projects on track.

Economy Standard Fine Thread Index Plungers

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview of Round Wire Springs

♢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.

Product Drawings of Round Wire Springs

Inner Diameter D	φ8 or Less	Free Length L	50 or Less	±1mm
	φAbove 10		Above 60	±2mm

Material of Round Wire Springs
Material SUS304-WPB Spring Constant ±10%

Product Feature of Round Wire Springs

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 givingpriority 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 displacementFmax.(mm).
To increase the usage count, it is recommended to use the spring up to 70% of the allowable displacement Fmax..

Installation Diagram of Inner Diameter Standard Type Round Wire Coil Spring, Round Wire Springs

Example Use of Round Wire 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.

Precautions of Round Wire Springs

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.

Related Products of Round Wire Springs


(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, Heavy Load, Spring Constant 0.98 to 2.94 N/mm	(Economy series)Round Wire Springs - Outer Diameter Standard Stainless Steel, Heavy Load, Spring Constant 2.0 to 14.7 N/mm
Reason for Recommendation: MISUMI Basic Round Wire Springs, Outer Diameter Standard Type, Ultra Light Load Type	Reason for Recommendation: MISUMI Basic Round Wire Springs, Inner Diameter Standard Type, Heavy Load Type	Reason for Recommendation: MISUMI Basic Round Wire Springs, Outer Diameter Standard Type, Heavy Load Type

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.Incomplete part number.
Please use left hand selections to complete a part number.

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: 30; 45; 60

Part Number
C-VUF6-15
C-VUF6-25
C-VUF8-20
C-VUF10-40

Price	Minimum Order Qty.	Volume Discount	Days to ShipSố ngày giao hàng	Free Length L (mm)	Inner Dia. D-2d (or D) (Ø)	Outer Dia. D (or D1) (Ø)	Height with the max. load applied ([Free Length] – [Allowable Deflection]) (mm)	Spring Constant (N/mm)	Allowable Load (Configurable Range) (N)	Max. Load (N)	Wire Dia. (Ø)	End Surface Status	Total Coils	Solid Length (mm)	Allowable Displacement (mm)
5,637 VND	1 Piece(s)	Available	Same day	15	6	7.2	8.2	0.49	1.51~4.50	3.33	0.6	With Grinding	9	6	6.8
6,243 VND	1 Piece(s)	Available	Same day	25	6	7.2	13.7	0.49	4.51~8.50	5.49	0.6	With Grinding	9	6	11.3
5,258 VND	1 Piece(s)	Available	Same day	20	8	9.4	11	0.49	1.51~4.50	4.41	0.7	With Grinding	7.6	6	9
6,773 VND	1 Piece(s)	Available	Same day	40	10	11.8	22	0.49	8.51~16.00	8.82	0.9	With Grinding	10	9.9	18

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Product Drawings

Specification Table

■C-VUR: Fmax. (allowable displacement) = L×60%

The inner diameter standard type gives priority to guaranteeing the inner diameter, while the outer diameter is for reference only.

Part Number		Outer Diameter D₁	Wire Diameter d	F max.	N{kgf} max.		Reference
TypeD－L		Outer Diameter D₁	Wire Diameter d	F max.	N{kgf} max.		Pitch	Solid Length	Total Number of Rolls
C－VUR 5 －	15＊	5.9	0.45	9	2.65	{0.27}	1.7	5	10
	20＊	5.9	0.45	12	3.53	{0.36}	2.2	5	10
	25＊	6	0.50	15	4.41	{0.45}	1.9	7.5	14
	30＊	6	0.50	18	5.29	{0.54}	2.3	7.5	14
C－VUR 6 －	15＊	7	0.50	9	2.65	{0.27}	1.9	5	9
	20＊	7.1	0.55	12	3.53	{0.36}	2.0	6.6	11
	25＊			15	4.41	{0.45}	2.5
	30＊			18	5.29	{0.54}	3.0
	35＊	7.2	0.60	21	6.17	{0.63}	2.7	9	14
	40＊	7.2	0.60	24	7.06	{0.72}	3.0	9	14
C－VUR 8 －	20＊	9.3	0.65	12	3.53	{0.36}	2.4	6.8	9.5
	25＊	9.3	0.65	15	4.41	{0.45}	2.9	6.8	9.5
	30＊	9.4	0.70	18	5.29	{0.54}	2.7	9.1	12
	35＊			21	6.17	{0.63}	3.2
	40＊			24	7.06	{0.72}	3.6
C－VUR 10 －	20＊	11.4	0.70	12	3.53	{0.36}	3.3	5.6	7
	25＊	11.5	0.75	15	4.41	{0.45}	3.1	7.5	9
	30＊	11.6	0.80	18	5.29	{0.54}	2.7	10.4	12
	35＊			21	6.17	{0.63}	3.2
	40＊			24	7.06	{0.72}	3.6
C－VUR 12 －	25＊	13.6	0.80	15	4.41	{0.45}	3.6	7.2	8
C－VUR 16 －	35＊	18	1.00	21	6.17	{0.63}	4.7	9.5	8.5
	40＊	18	1.00	24	7.06	{0.72}	5.3	9.5	8.5

Both ends of C-VUR models with * are not ground.

The solid length is a reference value. There will be slight differences among batches.

Be sure to use within the allowable displacement Fmax.(mm).

■C-VUF: Fmax. (allowable displacement) = L×45%

The inner diameter standard type gives priority to guaranteeing the inner diameter, while the outer diameter is for reference only.

Part Number		Outer Diameter D₁	Wire Diameter d	F max.	N{kgf} max.		Reference
TypeD－L		Outer Diameter D₁	Wire Diameter d	F max.	N{kgf} max.		Pitch	Solid Length	Total Number of Rolls
C－VUF 5－	15＊	6.0	0.5	6.8	3.33	{0.34}	2.3	4.3	7.5
C－VUF 6－	15	7.2	0.6	6.8	3.33	{0.34}	1.9	6.0	9.0
	25	7.2	0.6	11.3	5.49	{0.56}	3.1	6.0	9.0
C－VUF 8－	20	9.4	0.7	9.0	4.41	{0.45}	3.1	6.0	7.5
C－VUF 10－	40	11.8	0.9	18.0	8.82	{0.90}	4.4	9.9	10.0
C－VUF 16－	50	18.4	1.2	22.5	10.98	{1.12}	6.7	11.4	8.5

Both ends of C-VUF models with * are not ground.

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).

Basic InformationThông tin cơ bản

Material	SUS304-WPB

The specifications and dimensions of some parts may not be fully covered. For exact details, refer toCác thông số kỹ thuật và kích thước của mã sản phẩm có thể không được bao phủ đầy đủ. Để biết chi tiết chính xác, hãy tham khảo manufacturer catalogsdanh mục nhà sản xuất ..

Frequently asked question (FAQ)FAQ

Question:Question: How long is the life of a basic round wire coil spring?: Answer: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:Question: What are the JIS standards for general spring-related materials?: Answer: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:Question: What influence will the usage without a spring rail have on the spring?: Answer: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 spring on the intermediate shaft of the inner diameter side guide rail, passing it through from the upper surface to the lower surface.
Question: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: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:Question: What is the difference between a piano steel wire spring and a hard drawn steel wire spring?: Answer: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.

Check other FAQ (2 items) HideĐóng.

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MISUMI Vietnam Company Limited, Legal Representative: Tomohiro Watanabe,
phone: 0222-361-1555, e-mail: [email protected], Enterprise Code: 0107514576,
Date of Issuance: 22 July 2016, Place of Issuance: Bac Ninh, Business Certificate No. 6573041568-KD dated 27 September 2016 issued by the People's Committee of Bac Ninh

Công ty TNHH MISUMI Việt Nam, Đại diện theo pháp luật: Tomohiro Watanabe,
Điện thoại: 0222-361-1555, e-mail: [email protected], Mã số doanh nghiệp: 0107514576,
ngày cấp 22/7/2016, nơi cấp: Bắc Ninh, Giấy phép kinh doanh số: 6573041568-KD ngày cấp 27/9/2016 bởi UBND tỉnh Bắc Ninh

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Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước

Free Length L(mm)

Inner Dia. D-2d (or D)(Ø)

Outer Dia. D (or D1)(Ø)

Height with the max. load applied ([Free Length] – [Allowable Deflection])(mm)

Spring Constant(N/mm)

Allowable Load (Configurable Range)(N)

Max. Load(N)

Wire Dia.(Ø)

Total Coils

Solid Length(mm)

Allowable Displacement(mm)

type

End Surface Status

CADCAD