Shuangyuan Disc Springs CO.,LTD

DIN 2093 Disc Springs

din 2093 disc spring
Disc springs are conically-shaped, washer-type components designed to be axially loaded. We makes disc springs as per DIN 2093, the deflection for a given load is predictable and the minimum life cycle can be determined. Disc springs can be statically loaded either continuously or intermittently, or dynamically subjected to continuous load cycling. They can be used singly or in multiples stacked parallel, in series or in a combination thereof.

The advantages of disc springs compared to other types of springs include the following:

* A wide range of load/defl ection characteristics

* High load capacity with small deflection

* Space savings – high load to size ratio

* No set under design loads

* Longer fatigue life

* Inherent dampening especially with parallel stacking

* Flexibility in stack arrangement to meet your application requirements

Disc spring range:

Parts according to Din 2093 disc springs are listed into 3 groups.

Group 1 Material thickness < 1.25mm

Group 2 Material thickness 1.25 - 6.0mm

Group 3 Material thickness > 6.0 - 14mm

Disc spring specification

Standard Disc Springs Unit:inch PDF download

DIN2093（GB/T1972-2005）
Serial A D/t≈18;h0/t≈0.4；E=206000N/mm2 ;μ=0.30
Item no. D/mm d/mm t(t′)/mm h0/mm H0/mm f≈0.75h0  Q/KG/
1000pcs
f/mm (H0-f)/mm F/N

σ om/
  N/mm2

 σⅡ、σⅢ
/N/mm2
A1 8 4.2 0.4 0.2 0.6 0.15 0.45 210 -1200 1220* 0.114
A2 10 5.2 0.5 0.25 0.75 0.19 0.56 329 -1210 1240* 0.225
A3 12.5 6.2 0.7 0.3 1 0.23 0.77 673 -1280 1420* 0.508
A4 14 7.2 0.8 0.3 1.1 0.23 0.87 813 -1190 1340* 0.711
A5 16 8.2 0.9 0.35 1.25 0.26 0.99 1000 -1160 1290* 1.05
A6 18 9.2 1 0.4 1.4 0.3 1.1 1250 -1170 1300* 1.48
A7 20 10.2 1.1 0.45 1.55 0.34 1.21 1530 -1180 1300* 2.01
A8 22.5 11.2 1.25 0.5 1.75 0.38 1.37 1950 -1170 1320* 2.94
A9 25 12.2 1.5 0.55 2.05 0.41 1.64 2910 -1210 1410* 4.4
A10 28 14.2 1.5 0.65 2.15 0.49 1.66 2850 -1180 1280* 5.39
A11 31.5 16.3 1.75 0.7 2.45 0.53 1.92 3900 -1190 1320* 7.84
A12 35.5 18.3 2 0.8 2.8 0.6 2.2 5190 -1210 1330* 11.4
A13 40 20.4 2.25 0.9 3.15 0.68 2.47 6540 -1210 1340* 16.4
A14 45 22.4 2.5 1 3.5 0.75 2.75 7720 -1150 1300* 23.5
A15 50 25.4 3 1.1 4.1 0.83 3.27 12000 -1250 1430* 34.3
A16 56 28.5 3 1.3 4.3 0.98 3.32 11400 -1180 1280* 43
A17 63 31 3.5 1.4 4.9 1.05 3.85 15000 -1140 1300* 64.9
A18 71 36 4 1.6 5.6 1.2 4.4 20500 -1200 1330* 91.8
A19 80 41 5 1.7 6.7 1.28 5.42 33700 -1260 1460* 145
A20 90 46 5 2 7 1.5 5.5 31400 -1170 1300* 184.5
A21 100 51 6 2.2 8.2 1.65 6.55 48000 -1250 1420* 273.7
A22 112 57 6 2.5 8.5 1.88 6.62 43800 -1130 1240* 343.8
A23 125 64   8（7.5） 2.6 10.6 1.95 8.65 85900 -1280 1330* 533
A24 140 72   8（7.5） 3.2 11.2 2.4 8.8 85300 -1260 1280* 666.6
A25 160 82 10（9.4） 3.5 13.5 2.63 10.87 139000 -1320 1340* 1094
A26 180 92 10（9.4） 4 14 3 11 125000 -1180 1200* 1387
A27 200 102 12（11.25） 4.2 16.2 3.15 13.05 183000 -1210 1230* 2100
A28 225 112 12（11.25） 5 17 3.75 13.25 171000 -1120 1140 2640
A29 250 127 14（13.1） 5.6 19.6 1.2 15.4 249000 -1200 1220 3750
Serial B D/t≈28;h0/t≈0.75；E=206000N/mm2 ; μ=0.30
Item no. D/mm d/mm t(t′)/mm h0/mm H0/mm f≈0.75h0  Q/kg/
1000pcs
f/mm (H0-f)/mm F/N σ om/
N/mm2		 σⅡ、σⅢ
/N/mm2
B1 8 4.2 0.3 0.25 0.55 0.19 0.36 119 -1140 1330 0.086
B2 10 5.2 0.4 0.3 0.7 0.23 0.47 213 -1170 1300 0.180
B3 12.5 6.2 0.5 0.35 0.85 0.26 0.59 291 -1000 1110 0.363
B4 14 7.2 0.5 0.4 0.9 0.3 0.6 279 -970 1100 0.444
B5 16 8.2 0.6 0.45 1.05 0.34 0.71 412 -1010 1120 0.698
B6 18 9.2 0.7 0.5 1.2 0.38 0.82 572 -1040 1130 1.03
B7 20 10.2 0.8 0.55 1.35 0.41 0.94 745 -1030 1110 1.46
B8 22.5 11.2 0.8 0.65 1.45 0.49 0.96 710 -962 1080 1.88
B9 25 12.2 0.9 0.7 1.6 0.53 1.07 868 -938 1030 2.64
B10 28 14.2 1 0.8 1.8 0.6 1.2 1110 -961 1090 3.59
B11 31.5 16.3 1.25 0.9 2.15 0.68 1.47 1920 -1090 1190 5.6
B12 35.5 18.3 1.25 1 2.25 0.75 1.5 1700 -944 1070 7.13
B13 40 20.4 1.5 1.15 2.65 0.86 1.79 2620 -1020 1130 10.95
B14 45 22.4 1.75 1.3 3.05 0.98 2.07 3660 -1050 1150 16.4
B15 50 25.4 2 1.4 3.4 1.05 2.35 4760 -1060 1140 22.9
B16 56 28.5 2 1.6 3.6 1.2 2.4 4440 -963 1090 28.7
B17 63 31 2.5 1.75 4.25 1.31 2.94 7180 -1020 1090 46.4
B18 71 36 2.5 2 4.5 1.5 3 6730 -934 1060 57.7
B19 80 41 3 2.3 5.3 1.73 3.57 10500 -1030 1140 87.3
B20 90 46 3.5 2.5 6 1.88 4.12 14200 -1030 1120 129.1
B21 100 51 3.5 2.8 6.3 2.1 4.2 13100 -926 1050 159.7
B22 112 57 4 3.2 7.2 2.4 4.8 17800 -963 1090 229.2
B23 125 64 5 3.5 8.5 2.63 5.87 30000 -1060 1150 355.4
B24 140 72 5 4 9 3 6 27900 -970 1100 444.4
B25 160 82 6 4.5 10.5 3.38 7.12 41100 -1000 1110 698.3
B26 180 92 6 5.1 11.1 3.83 7.27 37500 -895 1040 885.4
B27 200 102 8（7.5） 5.6 13.6 4.2 9.4 76400 -1060 1250 1369
B28 225 112 8（7.5） 6.5 14.5 4.88 9.62 70800 -951 1180 1761
B29 250 127 10（9.4） 7 17 5.25 11.75 119000 -1050 1240 2687
Serial C D/t≈40;h0/t≈1.30;E=206000N/mm2;μ=0.30
Item no. D/mm d/mm t(t′)/mm h0/mm H0/mm f≈0.75h0  Q/kg/
1000pcs
f/mm (H0-f)/mm F/N σ om/ 
N/mm2		 σⅡ、σⅢ
/N/mm2
C1 8 4.20 0.20 0.25 0.45 0.19 0.26 39 -762 1040 0.057
C2 10 5.2 0.25 0.3 0.55 0.23 0.32 58 -734 980 0.112
C3 12.5 6.2 0.35 0.45 0.8 0.34 0.46 152 -944 1280 0.251
C4 14 7.2 0.35 0.45 0.8 0.34 0.46 123 -769 1060 0.311
C5 16 8.2 0.4 0.5 0.9 0.38 0.52 155 -751 1020 0.466
C6 18 9.2 0.45 0.6 1.05 0.45 0.6 214 -789 1110 0.661
C7 20 10.2 0.5 0.65 1.15 0.49 0.66 254 -772 1070 0.912
C8 22.5 11.2 0.6 0.8 1.4 0.6 0.8 425 -883 1230 1.41
C9 25 12.2 0.7 0.9 1.6 0.68 0.92 601 -936 1270 2.06
C10 28 14.2 0.8 1 1.8 0.75 1.05 801 -961 1300 2.87
C11 31.5 16.3 0.8 1.05 1.85 0.79 1.06 687 -810 1130 3.58
C12 35.5 18.3 0.9 1.15 2.05 0.86 1.19 831 -779 1080 5.14
C13 40 20.4 1 1.3 2.3 0.98 1.32 1020 -772 1070 7.3
C14 45 22.4 1.25 1.6 2.85 1.2 1.65 1890 -920 1250 11.7
C15 50 22.4 1.25 1.6 2.85 1.2 1.65 1550 -754 1040 14.3
C16 56 28.5 1.5 1.95 3.45 1.46 1.99 2620 -879 1220 21.5
C17 63 31 1.8 2.35 4.15 1.76 2.39 4240 -985 1350 33.4
C18 71 36 2 2.6 4.6 1.95 2.65 5140 -971 1340 46.2
C19 80 41 2.25 2.95 5.2 2.21 2.99 6610 -982 1370 65.5
C20 90 46 2.5 3.2 5.7 2.4 3.3 7680 -935 1290 92.2
C21 100 51 2.7 3.5 6.2 2.63 3.57 8610 -895 1240 123.2
C22 112 57 3 3.9 6.9 2.93 3.97 10500 -882 1220 171.9
C23 125 61 3.5 4.5 8 3.38 4.62 15100 -956 1320 248.9
C24 140 72 3.8 4.9 8.7 3.68 5.02 17200 -904 1250 337.7
C25 160 82 4.3 5.6 9.9 4.2 5.7 21800 -892 1240 500.4
C26 180 92 4.8 6.2 11 4.65 6.35 26400 -869 1200 708.4
C27 200 102 5.5 7 12.5 5.25 7.25 36100 -910 1250 100
C28 225 112 6.5（6.2） 7.1 13.6 5.33 8.27 44600 -840 1140 1456
C29 250 127 7（6.7） 7.8 14.8 5.85 8.95 50500 -814 1120 1915

We also produce non-standard disc spring as per your request.

 ● Disc spring complementarity sizes

 ● Non-standard sizes of disc spring

din 2093 without flatsdin 2093 with flats

dimensional designations

Technical and Design Guideline:

Material

common used
  material Ck75 50 Cr V4 X12CrNI 177 X7CrNIAl 177 X35CrMo17 X22CrMoV 121
DIN 1.1248 1.8159 1.4310 1.4568 1.4122 1.4923
Chemical components(%) C 0.7-0.8 0.47-0.55 0.12≤ 0.09≤ 0.35 0.2
Si 0.15-0.35 0.15-0.40 1.5≤ 1≤ 1≤ 0.3
Mn 0.6-0.8 0.7-1.1 2≤ 1≤ 1≤ 0.6
P max 0.035 0.035 -- -- 0.03 0.035
S max 0.035 0.035 -- -- 0.03 0.035
Al － - - 0.75-1.5 - -
Cr － 0.9-1.2 16-18 16-18 16.5 12
Ni － -- 6-9 6.5-7.75 － 0.6
V － 0.1-0.2 － － － 0.6
Mo － － － － 1.15 1
(N/mm2) 206000 206000 190000 195000 206000 206000

Special material
  material Inconel X750 Inconel 718 Nimonic 90 A286 Alloy FV520B CuBe2
DIN -- 2.4668 2.4969 1.4980 -- 2.1247
Chemical components（％） C 0.08≤ 0.08£ 0.09 0.08≤ 0.048 -
Si 0.5≤ 0.35 1≤ 1 0.37 -
Mn 1≤ 0.35 1≤ 2 1.05 -
P max -- 0.015 -- -- 0.020 -
S max 0.01 0.015 0.015 -- 0.014 -
Al 0.4-1 0.2-0.8 1-2 0.35 – - -
Cr 14-17 17-21 18-21 13.5-16 16-18 -
Ni ≤ 70 ≤ 50-55 Rest 24-27 5.47 +Co=0.2-0.6
V - - - 0.1-0.5 - -
Mo -- 2.8-3.3 -- 1-1.75 1.72 -
W -- -- -- -- -- -
Ti 2.25-2.75 0.65-1.15 2-3 1.9-2.3 0.10 -
Be - - - - - 1.95
Cu 0.5 0.3 0.2 -- 2.08 Rest
Co -- 1 15-21 -- -- --
Fe 5-9 -- 2 -- -- --
Nb 0.95 -- -- -- -- --
（N/mm2） 214000 208000 -- -- -- --


Dimensional Tolerance

DIAMETER TOLERA

Outside Diameter: De

Inside Diameter: Di

De or Di

Permissible deviation

De                        Di                                   Concentricity

            MM MM MM MM
1 Over 3 to 6 0/-0.12 +0.12/0 0.15
2 Over 6 to 10 0/-0.15 +0.15/0 0.18
3 Over 10 to 18 0/-0.18 +0.18/0 0.22
4 Over 18 to 30 0/-0.21 +0.21/0 0.26
5 Over 30 to 50 0/-0.25 +0.25 0.32
6 Over 50 to 80 0/-0.30 +0.30/0 0.60
7 Over 80 to 120 0/-0.35 +0.35/0 0.70
8 Over 120 to 180 0/-0.40 +0.40/0 0.80
9 Over 180 to 250 0/-0.46 +0.46/0 0.92
10 Over 250 to 315 0/-0.52 +0.52/0 1.04
11 Over 315 to 400 0/-0.57 +0.57/0 1.14
12 Over 400 to 500 0/-0.63 +0.63/0 1.26

1) In reference to Outside Diameter De

THICKNESS TOLERANCE (t)

 

t or t’

MM

Tolerance for t

MM

Group 1

0.2 to 0.6
>0.6 to <1.25

+0.02 / -0.06
+0.03 / -0.09

Group 2

1.25 to 3.8
>3.8 to 6.0

+0.04 / -0.12
+0.05 / -0.15

Group 3

>6.0 to 14.0

+0.10 / -0.10

FREE OVER-ALL HEIGHT (lo) TOLERANCE

 

t [MM]

Tolerance for L0

Group 1

<1.25

+0.10 / -0.05

Group 2

1.25 to 2.0
>2.0 to 3.0
>3.0 to 6.0

+0.15 / -0.08
+0.20 / -0.10
+0.30 / -0.15

Group 3

>6.0 to 14.0

+0.30 / -0.30

SPRING FORCE TOLERANCE

The static load (F) of a single disc shall be determined for a disc in the loaded state using a suitable lubricant. The pressure plates between which the disc is compressed must be hardened ground and polished.

The following deviations apply for normal applications:

 

t[MM]

Tolerances for F at the test length
     lp=lo -0.75 h o 

Group 1

<1.25

+25% / -7.5%

Group 2

 1.25 to 3.0 
>3.0 to 6.0

 +15% / -7.5%
+10% / -5%

Group 3

 >6.0 to 14.0

+5% / -5%

Surface Finish

Zinc phosphatizing and oiling ,oxidized bluing are the standard corrosion protection methods used for disc spring transport and storage. Special coatings, such as zinc plating, Delta Tone/Delta Seal, Geomet or chemical nickel plating are also available.

Application

Disc Spring application

Typical Application

belleville Spring applicationapplication

belleville Disc Spring application

Stacking

in parallelin seriesin combinationdifferent thickness disc spring assemblydifferent no's of disc spring assembly

Production Process

Fine blanking
Disc springs with material thickness between 1mm and 6mm are generally fine blanked.this method improves the fatigue life of the spring

Shot peening process
All Shuangyuan disc springs are shot peened using standard methods. The residual compressive stresses introduced to the peripheral layer through shot peening significantly increase the service life of the springs.

Heat Treatment
The heat treatment of disc springs is a fundamental
Production step for achieving the required spring character-
Istic.Depending upon the spring dimensions,modern
Continuous feed furnaces or chamber ovens are avaiable.
We have austempering and quenching and tempering
Processes available.

Pre-setting
Set loss can occur due to high stresses of the spring.in oder to reduce the risk of set loss,Shuangyuan pre-sets all disc springs at least to the flat position.this process greatly improves the quality of the spring and therefore is a requirement of the DIN 2093 standard

Phosphating
The standard corrosion protection,zinc phosphating and oiling,is made with afully automated continuous flow process,which guarantees uniform coating thickness at a reasonable cost

Delivery of disc spring stacks
Disc springs are often used in pre-assembled stacks.Shuangyuan is able to deliver pre-assembled stacks and if desired,
Install these stacks in the final assembly device.Shuangyuan can also manufacture these assembly devices per customer request.Test certificates(e.g.100% load testing) can also be provided upon request.

Applications with disc springs in use

  o       Control Safety Valve

  o       Automatic Quick Tool Changer (CNC Machines, etc.)

  o       Torque Converter

  o       Clutches Manual Transmission

  o       Nozzle of Spray Injection Moulding Unit

  o       Brake System

  o       Brake Slack Adjuster

  o       Stamping Machine

  o       Damper

  o       Over Load Protection