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Disc Springs

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Volume Discount

MISUMI

Disc Springs
Disc Springs also known as belleville spring 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 : S65C, SUP10 and SUS304-CSP
● Surface treatment : Black Oxide for S65C and SUP10
[Application]
Disc springs are utilized in bolted joints to maintain the desired preload force.

(i)Caution

Please check the content on our website as the PDF does not contain the most up-to-date information.

Part Number

Configured Part Number is shown.

Drawing/Specifications
3D Preview
Part Numbers
More Information
Catalog
Technical Information

SRBN
SSRBN
(Stainless Steel)

t	Load Tolerance (75% Deflection)
0.3~1.1	+25% -7.5%
1.2~3	+15% -7.5%

Type	[ M ]Material	[ S ]Surface Treatment	[ H ]Hardness
SRBN8~45	S65C	Black Oxide D45 and 50 are not treated.	42~48HRC
SRBN50	SUP10	Black Oxide D45 and 50 are not treated.	42~48HRC
SSRBN	SUS304-CSP	-	37~46HRC

Specifications

Part Number	-	Load Type A, B
SRBN22.5	-	A

Part Number		Load Type	D	d		t	H		h	Load N 75% Deflection		SRBN				SSRBN
Part Number										SRBN	SSRBN	Unit Price	Volume Discount Rate			Unit Price	Volume Discount Rate
Type	D									SRBN	SSRBN	1~49	50~74	75~99	100~500	1~49	50~74	75~99	100~500
SRBN SSRBN (Stainless Steel)	8	A	0 -0.15	4.2	+0.15 0	0.3	0.55	±0.10	0.25	133	102
	8	B		4.2		0.4	0.60		0.20	234	179
	10	A		5.2		0.4	0.70		0.30	232	179
	10	B		5.2		0.5	0.75		0.25	360	282
	12.5	A	0 -0.20	6.2		0.5	0.85		0.35	333	256
	12.5	B		6.2		0.7	1.00		0.30	769	572
	14	A		7.2		0.5	0.90		0.40	316	239
	14	B		7.2		0.8	1.10		0.30	921	691
	16	A		8.2		0.6	1.05		0.45	459	358
	16	B		8.2		0.9	1.25		0.35	1,315	896
	18	A		9.2		0.7	1.20		0.50	630	495
	18	B		9.2		1.0	1.40	±0.15	0.40	1,380	1,109
	20	A	0 -0.25	10.2	+0.20 0	0.8	1.35	±0.10	0.55	812	648
	20	B		10.2		1.1	1.55	±0.15	0.45	1,600	1,322
	22.5	A		11.2		0.8	1.45	±0.10	0.65	766	614
	22.5	B		11.2		1.2(1.25)	1.7(1.75)	±0.15	0.50	1,870	1,681
	25	A		12.2		0.9	1.6	±0.10	0.70	929	751
	25	B		12.2		1.6(1.5)	2.15(2.05)	±0.15	0.55	3,770	2,542
	28	A		14.2		1	1.8		0.80	1,180	981
	28	B		14.2		1.6(1.5)	2.25(2.15)		0.65	3,680	2,474
	31.5	A	0 -0.30	16.3		1.2(1.25)	2.1(2.15)		0.90	1,810	1,664
	31.5	B		16.3		1.8(1.75)	2.5(2.45)		0.70	4,490	3,370
	35.5	A		18.3	+0.25 0	1.2(1.25)	2.2(2.25)		1.00	1,590	1,476
	35.5	B		18.3		2	2.8		0.80	5,460	4,522
	40	A		20.4		1.6(1.5)	2.75(2.65)		1.15	3,290	2,278
	40	B		20.4		2(2.25)	3.1(3.15)		0.90	6,410	5,657
	45	A		22.4		1.8(1.75)	3.1(3.05)		1.30	4,130	3,174
	45	B		22.4		2.5	3.5	±0.2	1.00	8,040	6,697
	50	A		25.4		2	3.4	±0.15	1.40	5,110	4,146
	50	B		25.4		3	4.1	±0.2	1.10	13,400	10,409

[ ! ]t and H dimensions for SSRBN are shown in ( ). (Different from JIS)
[ ! ]Load is reference value. kgf=Nx0.101972

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.

CAD Download

: 30; 45; 60

Part Number
SRBN8-A
SRBN8-B
SRBN10-A
SRBN10-B
SRBN12.5-A
SRBN12.5-B
SRBN14-A
SRBN14-B
SRBN16-A
SRBN16-B
SRBN18-A
SRBN18-B
SRBN20-A
SRBN20-B
SRBN22.5-A
SRBN22.5-B
SRBN25-A
SRBN25-B
SRBN28-A
SRBN28-B
SRBN31.5-A
SRBN31.5-B
SRBN35.5-A
SRBN35.5-B
SRBN40-A
SRBN40-B
SRBN45-A
SRBN45-B
SRBN50-A
SRBN50-B
SSRBN8-A
SSRBN8-B
SSRBN10-A
SSRBN10-B
SSRBN12.5-A
SSRBN12.5-B
SSRBN14-A
SSRBN14-B
SSRBN16-A
SSRBN16-B
SSRBN18-A
SSRBN18-B
SSRBN20-A
SSRBN20-B
SSRBN22.5-A
SSRBN22.5-B
SSRBN25-A
SSRBN25-B
SSRBN28-A
SSRBN28-B
SSRBN31.5-A
SSRBN31.5-B
SSRBN35.5-A
SSRBN35.5-B
SSRBN40-A
SSRBN40-B
SSRBN45-A
SSRBN45-B
SSRBN50-A
SSRBN50-B

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Load Type	Material	Outer Dia. D (Ø)	Inner Dia. d (Ø)	Free State Height H (mm)	Load (N)	Plate Thickness t (mm)	Total Deflection h (mm)	Surface Treatment
SGD 1.59	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	8	4.2	0.55	133	0.3	0.25	Black Oxide Coating
SGD 1.59	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	8	4.2	0.6	234	0.4	0.2	Black Oxide Coating
SGD 1.62	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	10	5.2	0.7	232	0.4	0.3	Black Oxide Coating
SGD 1.65	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	10	5.2	0.75	360	0.5	0.25	Black Oxide Coating
SGD 1.68	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	12.5	6.2	0.85	333	0.5	0.35	Black Oxide Coating
SGD 1.70	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	12.5	6.2	1	769	0.7	0.3	Black Oxide Coating
SGD 1.72	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	14	7.2	0.9	316	0.5	0.4	Black Oxide Coating
SGD 1.73	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	14	7.2	1.1	921	0.8	0.3	Black Oxide Coating
SGD 1.75	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	16	8.2	1.05	459	0.6	0.45	Black Oxide Coating
SGD 1.76	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	16	8.2	1.25	1,315	0.9	0.35	Black Oxide Coating
SGD 1.76	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	18	9.2	1.2	630	0.7	0.5	Black Oxide Coating
SGD 1.79	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	18	9.2	1.4	1,380	1	0.4	Black Oxide Coating
SGD 1.81	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	20	10.2	1.35	812	0.8	0.55	Black Oxide Coating
SGD 1.84	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	20	10.2	1.55	1,600	1.1	0.45	Black Oxide Coating
SGD 1.84	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	22.5	11.2	1.45	766	0.8	0.65	Black Oxide Coating
SGD 1.85	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	22.5	11.2	1.7	1,870	1.2	0.5	Black Oxide Coating
SGD 1.89	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	25	12.2	1.6	929	0.9	0.7	Black Oxide Coating
SGD 1.90	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	25	12.2	2.15	3,770	1.6	0.55	Black Oxide Coating
SGD 1.94	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	28	14.2	1.8	1,180	1	0.8	Black Oxide Coating
SGD 1.97	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	28	14.2	2.25	3,680	1.6	0.65	Black Oxide Coating
SGD 2.01	1 Piece(s)	Available	Same day	10	A	[S65~70C (Black Oxide)] S65C	31.5	16.3	2.1	1,810	1.2	0.9	Black Oxide Coating
SGD 2.09	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	31.5	16.3	2.5	4,490	1.8	0.7	Black Oxide Coating
SGD 2.23	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	35.5	18.3	2.2	1,590	1.2	1	Black Oxide Coating
SGD 2.36	1 Piece(s)	Available	Same day	10	B	[S65~70C (Black Oxide)] S65C	35.5	18.3	2.8	5,460	2	0.8	Black Oxide Coating
SGD 2.59	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	40	20.4	2.75	3,290	1.6	1.15	Black Oxide Coating
SGD 2.85	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	40	20.4	3.1	6,410	2	0.9	Black Oxide Coating
SGD 2.88	1 Piece(s)	Available	4 Day(s) or more	10	A	[S65~70C (Black Oxide)] S65C	45	22.4	3.1	4,130	1.8	1.3	NA
SGD 2.92	1 Piece(s)	Available	4 Day(s) or more	10	B	[S65~70C (Black Oxide)] S65C	45	22.4	3.5	8,040	2.5	1	NA
SGD 2.98	1 Piece(s)	Available	4 Day(s) or more	10	A	[SUP-10] SUP-10	50	25.4	3.4	5,110	2	1.4	NA
SGD 3.30	1 Piece(s)	Available	4 Day(s) or more	10	B	[SUP-10] SUP-10	50	25.4	4.1	13,400	3	1.1	NA
SGD 1.67	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	8	4.2	0.55	102	0.3	0.25	NA
SGD 1.68	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	8	4.2	0.6	179	0.4	0.2	NA
SGD 1.70	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	10	5.2	0.7	179	0.4	0.3	NA
SGD 1.70	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	10	5.2	0.75	282	0.5	0.25	NA
SGD 1.72	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	12.5	6.2	0.85	256	0.5	0.35	NA
SGD 1.73	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	12.5	6.2	1	572	0.7	0.3	NA
SGD 1.76	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	14	7.2	0.9	239	0.5	0.4	NA
SGD 1.81	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	14	7.2	1.1	691	0.8	0.3	NA
SGD 1.81	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	16	8.2	1.05	358	0.6	0.45	NA
SGD 1.84	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	16	8.2	1.25	896	0.9	0.35	NA
SGD 1.87	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	18	9.2	1.2	495	0.7	0.5	NA
SGD 1.89	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	18	9.2	1.4	1,109	1	0.4	NA
SGD 1.90	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	20	10.2	1.35	648	0.8	0.55	NA
SGD 1.95	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	20	10.2	1.55	1,322	1.1	0.45	NA
SGD 1.98	1 Piece(s)	Available	Same day	10	A	SUS304-CSP	22.5	11.2	1.45	614	0.8	0.65	NA
SGD 2.07	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	22.5	11.2	1.75	1,681	1.25	0.5	NA
SGD 2.09	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	25	12.2	1.6	751	0.9	0.7	NA
SGD 2.15	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	25	12.2	2.05	2,542	1.5	0.55	NA
SGD 2.17	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	28	14.2	1.8	981	1	0.8	NA
SGD 2.28	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	28	14.2	2.15	2,474	1.5	0.65	NA
SGD 2.36	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	31.5	16.3	2.15	1,664	1.25	0.9	NA
SGD 2.53	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	31.5	16.3	2.45	3,370	1.75	0.7	NA
SGD 2.68	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	35.5	18.3	2.25	1,476	1.25	1	NA
SGD 2.90	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	35.5	18.3	2.8	4,522	2	0.8	NA
SGD 3.23	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	40	20.4	2.65	2,278	1.5	1.15	NA
SGD 3.57	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	40	20.4	3.15	5,657	2.25	0.9	NA
SGD 3.84	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	45	22.4	3.05	3,174	1.75	1.3	NA
SGD 4.37	1 Piece(s)	Available	4 Day(s) or more	10	B	SUS304-CSP	45	22.4	3.5	6,697	2.5	1	NA
SGD 5.05	1 Piece(s)	Available	4 Day(s) or more	10	A	SUS304-CSP	50	25.4	3.4	4,146	2	1.4	NA
SGD 5.69	1 Piece(s)	Available	Same day	10	B	SUS304-CSP	50	25.4	4.1	10,409	3	1.1	NA

More Information

■Load Characteristics in Combination (Excerpt from JIS B 2706 (2003))

[ ! ]A guide is necessary to keep the springs aligned.
[ ! ]Please use the disc springs of same size and load only.

Product TOP

Configure

60 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Load Type
- B
- A
Clear
Material
- S65~70C (Black Oxide)
  - S65C
- SUS304-CSP
- SUP-10
  - SUP-10
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
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

1.7

1.75

1.8

2.05

2.1

2.15

2.2

2.25

2.45

2.5

2.65

2.75

2.8

3.05

3.1

3.15

3.4

3.5

4.1
Clear
Load(N)
1,109

1,180

1,315

1,322

1,380

1,476

1,590

1,600

1,664

1,681

1,810

1,870

2,278

2,474

2,542

3,174

3,290

3,370

3,680

3,770

4,130

4,146

4,490

4,522

5,110

5,460

5,657

6,410

6,697

8,040

10,409

13,400

102

133

179

232

234

239

256

282

316

333

358

360

459

495

572

614

630

648

691

751

766

769

812

896

921

929

981
Clear
Plate Thickness t(mm)
0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.25

1.5

1.6

1.75

1.8

2

2.25

2.5

3
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
Surface Treatment
- Black Oxide Coating
- NA
Clear
type
- SRBN
- SSRBN
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

4 Day(s) or Less
Clear

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The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Disc Springs

(i)Caution

Specifications

Part Number

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Configure

Specification/Dimensions

Load Type

Material

Outer Dia. D(Ø)

Inner Dia. d(Ø)

Free State Height H(mm)

Load(N)

Plate Thickness t(mm)

Total Deflection h(mm)

Surface Treatment

type

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