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Disc Springs【50-100 Pieces Per Package】 (E-SRBN25B)

Disc Springs E-SRBN25B
  • Volume Discount
Check FAQ of this product (2 items)

MISUMI

MiSUMi Economy

MISUMI

Disc Springs
Disc Springs also known as belleville spring are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Feature]
● Outer Diameter Minimum/Maximum (mm.) : 8 and 50
● Inner Diameter Minimum/Maximum (mm.) : 4.2 and 25.4
● Free State Height Minimum/Maximum (mm.) : 0.55 and 4.1 (depend on product code)
● Material : 50CrVA
● Surface treatment : Phosphating
[Application]
Disc springs are utilized in bolted joints to maintain the desired preload force.

Part Number

Configured Part Number is shown.

E-SRBN25B



Economy Disc Spring

Compact DesignHigh Load CapacityConsistent Quality

- Design: Cone-shaped disc design for efficient load distribution.  

- Material: 50CrVA steel for strength and durability.

- Size Range: Varied outer and inner diameters to suit different applications.

- Fastener with bulk packaging options

- High Load Capacity: Handles large loads with minimal deformation.

Economy Disc Spring
MISUMI Economy Logo

MISUMI Standard
MISUMI Standard

Cheaper Price
Cheaper Price

Product Variety
Product Variety

3D CAD
3D CAD Support


Disc Springs Product Overview

Overview
The Disc Springs is a cone -shaped disc-like spring that is made by drilling the center of a disc. Unlike conventional springs, it has special functions.
Capable of withstanding large loads with small deformation, it features short stroke, less space, easy combination, maintenance and replacement, enhanced level of economy and safety, and long service life.
Meanwhile, it is also considered as a spring that is difficult to design. When used in a stacked manner, a slight dimensional difference may impose great impact on the load, and cause a reversed relationship between displacement and load.

Disc Springs Product Features

Features of Disc Springs
1. Large stiffness, strong shock absorbing and vibration absorption ability, bearing large load with small deformation, and suitable for small axial space requirements
2. This spring has variable stiffness.
3. Using the same disc spring with different combinations can make the spring characteristics change in a large range
 It can be used in different combinations, such as parallel overlapping, in-line combination, or parallel and in-line combination.

■ Difference between MISUMI Economy series and generic products in the market
Products circulating on the market *MISUMI economy series
24H Salt Spray Test Results48H Salt Spray Test Results
Surface treatment: blackeningSurface treatment: parkerizing
Product FeaturesProduct Features

■ Dimensional Consistency Performance Test
Products circulating on the market *MISUMI economy series
30PC Consistency Test (CPK)50PC Consistency Test (CPK)
Deviation of Spring Height (H0)
Product Features
CPK=0.48		Deviation of Spring Height (H0)
Product Features
CPK=1.48		The dimensional consistency
of the product
is 3 times that of the products circulating
on the market.
Overlapping use can result in unstable performanceEnsure stable performance during overlapping use
・When used in combination, the truncated cone height and disc thickness of the disc spring has a great impact on its performance. If the dimensional consistency is not high, stress may be unevenly distributed in the cross section. In this case, a good CPK index can effectively improve its fatigue strength and shock absorbing capability of the material per unit volume. The service life is thus improved.
* Generic products in the market are similar products randomly purchased by our company from online or offline markets
* The test data are obtained through testing by our company, which are for reference only.

Disc Springs Dimensional Drawing

Dimensional Drawing

・Material Table
Material: 50CrVA
Surface treatment: parkerizing

Disc Springs Usage Method

Usage Method

Disc Springs Example of Use

Example of Use for Disc Springs

Disc Springs Precautions

Changes in inner and outer diameters during compression
Precautions for disc springs - Disc spring coefficient
* When the stroke of the Disc Springs is greater than 75%, the load increase will be limited, but it has a great impact on its service life. Therefore, its optimal operating range is between 10~75% of its maximum displacement.
* When Disc Springss are used in combination, a guide rod or guide sleeve is required for the inner diameter or outer diameter, and the spring shape may change with the compression, so it is important to consider the gap between the spring and the guide part.
 
Inner Diameter/Outside diameter (mm)Recommended gap (mm)
15 or Less0.2
20 or Less0.3
26 or Less0.4
45 or Less0.6
75 or Less0.8
140 or Less1.0
250 or Less1.6
(Not guaranteed values and for reference only)

Disc Springs Related Products

Tension spring with standard fixed length
Reason for recommendation: The tension spring with standard fixed length is a heavy load type spring capable of bearing large load and having short delivery time.
O.D. referenced-type stainless steel spring
Reason for recommendation: The O.D. referenced-type stainless steel spring is a high quality choice for you.
Stainless Steel Torsion Springs
Reason for recommendation: The stainless steel torsion spring provides arm angle options of 90°, 180° and 135°, for which alteration can be made.

Part Number 

CAD Data download and 3D preview are not available because the part number has not yet been determined.

  • *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
  • Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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CAD Download

30
45
60
  1. 1
Part Number
E-SRBN25B
Part NumberStandard Unit PriceNumber of pc(s). included in pkg.Minimum order quantityVolume DiscountDays to ShipOuter Dia. D
(Ø) 		Inner Dia. d
(Ø) 		Load Type Plate Thickness t
(mm) 		Free State Height H
(mm) 		Total Deflection h
(mm)

234,721 IDR

100 Pieces Per Package

1 Pack(s)Available 49 Day(s) 2512.2B1.52.050.55

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  1. 1

Specification Table
Part NumberOuter Diameter (D)Load TypeTolerance (D)
mm		I.D. (d)
mm		Tolerance (d)
mm		Plate Thickness (t)
mm		Free Height Ho
mm		Tolerance (Ho)
mm		Maximum Deflection (h)
mm		Load (75% Deflection)
N
TypeD
Economy series8A0
-0.15		4.20.15
0		0.30.55+0.1
-0.05		0.25119
B0.40.60.2210
10A5.20.40.70.3213
B0.50.750.25323
12.5A0
-0.18		6.20.50.850.35294
B0.710.3657
14A7.20.50.90.4274
B0.81.10.3813
16A8.20.61.050.45411
B0.91.250.351029
18A9.20.71.20.5568
B11.40.41274
20A0
-0.21		10.20.18
0		0.81.350.55745
B1.11.550.451520
22.5A11.20.81.450.65710
B1.251.75+0.15
-0.08		0.51950
25A12.20.91.6+0.10
-0.05		0.7868
B1.52.05+0.15
-0.08		0.552910
28A14.211.8+0.10
-0.05		0.81110
B1.52.15+0.15
-0.08		0.652850
31.5A0
-0.25		16.31.252.150.91920
B1.752.450.73900
35.5A18.30.21
0		1.252.2511700
B22.80.85190
40A20.41.52.651.152620
B2.253.15+0.20
-0.10		0.96540
45A22.41.753.05+0.15
-0.08		1.33660
B2.53.5+0.20
-0.10		17720
50A25.423.4+0.15
-0.08		1.44756
B34.1+0.20
-0.10		1.111964
The load is reference value.
"h" is the dimension of the load (at 75% displacement).

Basic Information

Material Spring Steel

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Specification/Dimensions

  • type

    • E-SRBN

    Clear

  • Outer Dia. D(Ø)

    • 8
    • 10
    • 12.5
    • 14
    • 16
    • 18
    • 20
    • 22.5
    • 25
    • 28
    • 31.5
    • 35.5
    • 40
    • 45
    • 50

    Clear

  • Inner Dia. d(Ø)

    • 4.2
    • 5.2
    • 6.2
    • 7.2
    • 8.2
    • 9.2
    • 10.2
    • 11.2
    • 12.2
    • 14.2
    • 16.3
    • 18.3
    • 20.4
    • 22.4
    • 25.4

    Clear

  • Load Type

    • B
    • A

    Clear

  • Plate Thickness t(mm)

    • 0.3
    • 0.4
    • 0.5
    • 0.6
    • 0.7
    • 0.8
    • 0.9
    • 1
    • 1.1
    • 1.25
    • 1.5
    • 1.75
    • 2
    • 2.25
    • 2.5
    • 3

    Clear

  • Free State Height H(mm)

    • 0.55
    • 0.6
    • 0.7
    • 0.75
    • 0.85
    • 0.9
    • 1
    • 1.05
    • 1.1
    • 1.2
    • 1.25
    • 1.35
    • 1.4
    • 1.45
    • 1.55
    • 1.6
    • 1.75
    • 1.8
    • 2.05
    • 2.15
    • 2.25
    • 2.45
    • 2.65
    • 2.8
    • 3.05
    • 3.15
    • 3.4
    • 3.5
    • 4.1

    Clear

  • Total Deflection h(mm)

    • 0.2
    • 0.25
    • 0.3
    • 0.35
    • 0.4
    • 0.45
    • 0.5
    • 0.55
    • 0.65
    • 0.7
    • 0.8
    • 0.9
    • 1
    • 1.1
    • 1.15
    • 1.3
    • 1.4

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • Same day
    • 49 Day(s) or Less

    Clear

Specify Alterations

Frequently asked question (FAQ)

Question: What is the difference between a butterfly spring and a coil spring?
Answer: 1. The butterfly spring can be installed in small spaces with large load, and its characteristics can be varied in a wide range through combination of use.
2. When bearing load, it can get larger stroke. It has the load characteristics of low hysteresis and high reproducibility during compression and decompression.
Question: What types of disc spring materials are available in the market?
Answer: The standard material is 60Si2Mn, while the best material should be 50CrV4, equivalent to the imported steel 51CrV4. The rest are unconventional materials such as stainless steel.

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