Disc Springs

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MISUMI

[Features] Materials can be selected from S65C, EN 1.8159 Equiv. and EN 1.4301 Equiv. (sintered)-CSP.

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SSRBN31.5-A

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Technical Information

Type	Material	Surface Treatment	Hardness
SRBN8~45	EN 1.1221 Equiv.	Black Oxide D45 and 50 are not treated.	42~48HRC
SRBN50	EN 1.8159 Equiv.	Black Oxide D45 and 50 are not treated.	42~48HRC
SSRBN	EN 1.4301 (CSP) Equiv.	-	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

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Part Number
SSRBN31.5-A

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Load Type	Material	O.D. D (Ø)	I.D. d (mm)	Free State Height H (mm)	Load (N)	Plate Thickness t (mm)	Total Deflection h (mm)
	1.24 €	1	Available	Same day Stock	10	A	EN 1.4301 (CSP) Equiv.	31.5	16.3	2.15	1,664	1.25	0.9

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Basic Attributes

Load Type
- B
- A
Clear
Material
- EN 1.1221 Equiv.
- EN 1.4301 (CSP) Equiv.
Clear
O.D. D(Ø)
8

10

12.5

14

16

18

20

22.5

25

28

31.5

35.5

40

45

50
Clear
I.D. d(mm)
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
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
Type
- SRBN
- SSRBN
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
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Optional Attributes

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

Variation of this product

Part Number
SRBN12.5-B
SRBN14-A
SRBN16-A
SSRBN40-A
SSRBN8-A
SSRBN8-B

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Load Type	Material	O.D. D (Ø)	I.D. d (mm)	Free State Height H (mm)	Load (N)	Plate Thickness t (mm)	Total Deflection h (mm)
0.80 €	1	Available	Same day Stock	10	B	EN 1.1221 Equiv.	12.5	6.2	1	769	0.7	0.3
0.82 €	1	Available	Same day Stock	10	A	EN 1.1221 Equiv.	14	7.2	0.9	316	0.5	0.4
0.84 €	1	Available	Same day Stock	10	A	EN 1.1221 Equiv.	16	8.2	1.05	459	0.6	0.45
1.87 €	1	Available	5 Days	10	A	EN 1.4301 (CSP) Equiv.	40	20.4	2.65	2,278	1.5	1.15
0.79 €	1	Available	Same day Stock	10	A	EN 1.4301 (CSP) Equiv.	8	4.2	0.55	102	0.3	0.25
0.79 €	1	Available	Same day Stock	10	B	EN 1.4301 (CSP) Equiv.	8	4.2	0.6	179	0.4	0.2