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DISC SPRING TOLERANCES:


Tolerances:
As cost is a major consideration, springs must be produced in the most economical manner. Specified tolerances, therefore, should be generous enough to permit the fabrication of acceptable springs by ordinary production methods. Also, it is wise to apply tolerances only to functional requirements and dimensions. This practice gives the spring maker an opportunity to make adjustments to make compensate for the allowable variations present in the size and mechanical properties of all spring materials. Another recommendation for the product designers: If the standard drawing forms have tolerance boxes for machined dimensions they are almost sure to be impractical for springs. Delete them and apply realistic tolerances to the mandatory spring requirements.


Disc Spring Tolerances:
The following maximum deviations are laid down in DIN 2093.  They are valid for all Disc Springs as per the DIN and our works standards.  In general IIS also applies these tolerances to special sizes, however, if they deviate greatly from the DIN, wider tolerances must be specified. This applies to our ball-bearing Disc Springs. If closer tolerances are required than those tolerances in DIN 2093, please consult us.


Thickness Tolerances

Group

t or t' (mm)

Tolerance for t (mm)

1

0.2 to 0.6
>0.6 to <1.25

+0.02/-0.06
+0.03/-0.09

2

1.25 to 3.8
>3.8 to 6.0

+0.04/-0.12
+0.05/-0.15

3

>6.0 to 14.0

+0.10/-0.10

Free Height Tolerances

Group

t

Tolerance for t (mm)

1

<1.25

+0.10/-0.05
+0.03/-0.09

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

3

>6.0 to 14.0

+0.30/-0.30

Load Tolerances

The static load F must be determined at the proof test height of the Disc Spring.  Calculation must be based upon the nominal material thickness of the Disc Spring t and not with the reduced material thickness t' .  Measurements must be made during loading of the Disc Spring.  The loading plates must be hardened, ground & polished.  appropriate lubrication must be used during the testing

The tolerances on spring load

Group

t

Tolerance for t (mm)

1

<1.25

+0.25.0 - 7.5

2

1.25 to 3.0

+0.15

>3.0 to 6.0

- 7.5

3

>6.0 to 14.0

+ 5.0


To ensure the specified spring forces, DIN 2093 allows the overall height tolerance to be slightly exceeded.

 

Theoretical vs Measured Characteristic of a Disc Spring

The characteristic of the individual Disc Spring is non-linear.  Its shape depends on the ratio ho/t.  At the lower portion of the deflection range the characteristic in practice depart slightly from the theoretical.  When S/ho>0.75 the characteristic in practice again departs increasingly from the theoretical because the Disc Springs roll upon one another or upon the supporting surface and this leads to a continuous shortening of the lever arm.  For this reason, the spring force is only indicated at Ss=0.75 ho in DIN 2093.
     

Tolerances for Spring Rates of Compression Springs
In standard compression spring applications, spring forces at the low and high ends of the scale normally determine the switching functions intended for a compression spring.
Practicable force tolerances as defined in DIN 2095, the established standard in many EU states and generally throughout the world, are stipulated for such applications.
In some cases, however, the decisive factor is specific force development after an adjustable switching point. This clearly relates to the increase or decrease in force per unit of spring travel, i.e. the spring rate.
Examples that spring to mind include spring balances, mechanical letter or diet scales as well as suspension systems in automotive engineering applications.
Unfortunately, a very wide range of tolerances has been specified for spring rates to date.
In the United Kingdom BS 1726 is the standard, in America the M3 formula is used while in Japan JIS B 2707 is the decisive standard. All these standards apply to all types of compression spring and give rise to large discrepancies in specified tolerances. In Germany, DIN 2096 Part 1 is the authoritative standard that applies only to helical springs on motor vehicle axles. All the above formulae for calculating spring rate tolerance are outlined in Annex 1.
By considering the specified tolerances and comparing them to test results that were determined for ESF based on real springs in America, Denmark, Germany, France and Japan, we arrive at Annex 2. The only effective way to derive correlations was to sort and compare all results corresponding to the number of active coils of the individual springs. Trends indicate that the British formula for calculating spring rate tolerances as defined in
BS 1726 results in ever greater spring rate tolerances for springs with increasing number of active coils while the Japanese formula for calculating spring rate tolerances as stipulated by JIS B 2707 leads to precisely the opposite results, i.e. ever closer spring rate tolerances as the number of active coils increases.
In the same way as JIS B 2707, the German tolerance formula in accordance with DIN 2096 Part 1 for spring rates of vehicle suspension springs also leads to ever closer tolerances as the number of active coils increases. The American M3 method indicates a trend similar to the Japanese JIS B 2707, however, it exhibits extreme values both for low as well as for high numbers of active coils. With the aim of finding alternatives for an IWA document currently being prepared (i.e. tentative standard to ISO) for spring rate tolerances, the Japanese (end of March 2006) and the Americans (mid-April 2006) each submitted a revised proposal. The Japanese proposed to split the spring rate tolerance formula of DIN 2095

THE TOLERANCE/COST RATIO
Acme Monaco is staffed and equipped to produce springs to extreme limits of precision. However, the end uses of most springs do not require more than "commercial tolerances."
These +/- allowances can result in economies while maintaining quality. Wherever commercial tolerances are acceptable, costs can be minimized. Commercial grade springs can often be produced on our automatic equipment. The following commercial tolerances are usually considered for springs like these shown.
MATERIAL SELECTION
Material can be selected as they relate to expected (a) cycles of stress, (b) temperature, (c) corrosion, (d) chemicals, (e) water and moisture, (f) special involvements. Commercial tolerances of materials vary with each wire diameter. For example: wire diameter .007" could be +/-.0002" while .090" diameter could be +/-.001"
DETERMINING FREE LENGTH
The overall length of an unloaded spring is its free length. The commercial tolerance of free length is determined by the Spring Index Number, which is the relationship of the spring diameter to the diameter of the wire from which it is made, and the number of active coils per inch (pitch dimension) in relation to the overall length. For example, a spring having 12 coils per inch with a Spring Index Number "10" has a free length commercial tolerance of +/-.030"
COIL DIAMETER
Coil diameter tolerance is determined by the diameter of the wire and the Spring Index Number. For example, springs made from wire with .035" diameter, having a index factor of "10", carries a commercial tolerance of +/-.007" for the coil diameter.
SINGLE AND MULTIPLE LOAD
Commercial tolerances of compression springs include +/- 10% of the load requirement. Springs with a multiple load carry a tolerance of +/- 10% on each load. For example, a spring with a free length of 2" working in the compressed state could have a specified load at 1 1/2" and also at 1". Commercial tolerance would be +/- 10% of each load
SPRING RATE
The spring rate is determined by the amount of force required to constrict a compression spring by one inch. Using the "LOAD" example, if the 2" free length spring required 1 lb. to compress it to 1 1/2", and 2 lb. to compress it to 1", its spring rate would be 2 lb., and its commercial tolerance would be +/- 3.2 oz. (+/- 10%).

GRINDING TOLERANCE
The grinding of compression springs provides squareness of closed ends. (Closed ends result from reducing the pitch of the end coils until they touch) The commercial tolerance for end grinding is +/- 3°

DISC SPRING TOLERANCES


TOLERANCE FOR THICKNESS MATERIAL C-1075 OR AISI 6150 Tolerances DO NOT Apply To Stainless See Note Below

THICKNESS t

TOLERANCE

MM

INCH

INCH

0.3
0.4

.0118
.0157

+.001
-.001

0.5
0.6

.0197
.0236

+.001
-.001

0.7
0.8

.0276
.0315

+.002
-.002

0.9

.035

+.002
-.002

1.0

.039

+/-.002

1.1
1.25

.043
.049

+.002
-.002

1.5
1.75

.059
.069

+.002
-.002

2.0

.078

+.002
-.002

2.25
2.5

.088
.098

+.003
-.003

3.0
3.5

.118
.138

+/-.004

4.0 to 16.0

.157 to .630

+/-.005

(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)

 DISC SPRING TOLERANCES


OVERALL HEIGHT TOLERANCE

Group

Thickness Range
mm

Thickness Range
inch

Tolerance
mm

Tolerance
inch

1

less than 1.25

0.049

+0.10
-0.05

+0.004
-0.002

2

1.25 to 2.00

0.049 to 0.078

+0.15
-0.08

+0.006
-0.003

over 2.00 to 3.00

0.078 to 0.188

+0.30
-0.10

+0.012
-0.004

over 3.00 to 6.00

0.118 to 0.236

+0.30
-0.15

+0.012
-0.006

3

over 6.00 to 14.00

0.236 to 0.551

+/-0.30

+/-0.012

(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)


DISC SPRING HARDNESS RANGE:
FOR C1075 AND AISI 6150

Thickness of Disc

ROCKWELL C

MM

INCH

0.2 - 0.9

.008 - .035

46-51

1.0 - 4.0

.039 - .157

44-49

4.25 - 16.0

.164 - .630

42-48

For Stainless Steel and Inconel, consult factory
(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)

 DISC SPRING TOLERANCES


OD and ID GUIDE CLEARANCE:

OD / ID

 

TOLERANCE(App.)

mm

inch

MM

INCH

Up to 16

0.63

0.2

0.008

Over 16 - Up to 20

0.63 - 0.79

0.3

0.012

Over 20 - Up to 26

0.79 - 1.02

0.4

0.016

Over 26 - Up to 31.5

1.02 - 1.24

0.5

0.020

Over 31.5 - Up to 50

1.24 - 1.97

0.6

0.024

Over 50 - Up to 80

1.97 - 3.14

0.8

0.031

Over 80 - Up to 140

3.15 - 5.52

1.0

0.039

Over 140 - Up to 250

5.52 - 9.85

1.6

0.063

NOTE: Inside Guiding is preferred. Guide Bolts should be Rc55-60 ground and polished.
(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)
DISC SPRING TOLERANCES


OD / ID TOLERANCE:

OD / ID TOLERANCES

MM

INCH

Total Tolerances

1.6 - 3

.060 to .118

.004

3.0 - 6

.118 to .236

.005

6.0 - 10

.236 to .394

.006

10 - 18

.394 to .709

.007

18 - 30

.709 to 1.18

.008

30 - 50

.1.18 to 1.97

.010

50 - 80

1.97 to 3.15

.014

80 - 120

3.15 to 4.72

.014

120 - 180

4.72 to 7.09

.016

180 - 250

7.09 to 9.84

.018

NOTE: For OD. Tolerance is Minus Value Shown. For ID. Tolerance is Plus Value Shown.
(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)
DISC SPRING TOLERANCES


LOAD TOLERANCE:

 

THICKNESS RANGE

TOLERANCE FOR LOAD

GROUP

MM

INCH

At Deflection=.75h

1

less than 1.25

0.049

+25%
-7.5%

2

1.25 to 3.00

0.49 to 0.118

+15%
-7.5%

over 3.00 to 6.00

0.118 to 0.236

+10%
-5%

3

over 6.00 to 14.00

0.236 to .551

+/- 5%

(Note: The tolerances shown in the table are for M series of material C1075 or AISI 6150. For tolerances on other series, such as Stainless, SP, AL, etc. consult factory.)

TORSION SPRINGS
Coil Diameter Tolerances, ± in. (mm)

Wire Dia., In. (mm)

Spring lndex : D/d

4

6

8

10

12

14

16

0.015

0.002

0.002

0.002

0.002

0.003

0.003

0.004

(0.38)

(0.05)

(0.05)

(0.05)

(0.05)

(0.08)

(0.08)

(0.10)

0.023 (0.58)

0.002 (0.05)

0.002 (0.05)

0.002 (0.05)

0.003 (0.06)

0.004 (0.10)

0.005 (0.13)

0.006 (0.15)

0.035 (0.89)

0.002 (0.05)

0.002 (0.05)

0.003 (0.08)

0.004 (0.10)

0,006 (0.15)

0.007 (0.18)

0.009 (0.23)

0.051 (1.30)

0.002 (0.05)

0.003 (0.08)

0.005 (0.13)

0.007 (0.18)

0,008 (0.20)

0.010 (0.25)

0.012 (0.30)

0.076 (1.93)

0.003 (0.08)

0.005 (0.13)

0.007 (0.18)

0.009 (0.23)

0.012 (0.30)

0.015 (0.38)

0.018 (0.46)

0.114 (2.90)

0.004 (0.10)

0.007 (0.18)

0.010 (0.25)

0.013 (0.33)

0.018 (0.46)

0.022 (0.56)

0.028 (0.71)

0.172 (4.37)

0.006 (0.15)

0.010 (0 25)

0.013 (0-33)

0.020 (0.51)

0.027 (0.69)

0.034 (0.86)

0.042 (1.07)

0.250 (6.35)

0.008 (0.20)

0.014 (0.36)

0.022 (0.56)

0.030 (0.76)

0.040 (1.02)

0.050 (1.27)

0.060 (1.52)

 

TORSION SPRINGS
Free Angle Tolerances, ± degrees

Number Of Coils

Spring lndex. D/d

4

6

8

10

12

14

16

18

20

1

2

3

3.5

4

4.5

5

5.5

5.5

6

2

4

5

6

7

8

8.5

9

9.5

10

3

5.5

7

8

9.5

10.5

11

12

13

14

4

7

9

10

12

14

15

16

16.5

17

5

8

10

12

14

16

18

20

20.5

21

6

9.5

12

14.5

16

19

20.5

21

22.5

24

8

12

15

18

20,5

23

25

27

28

29

10

14

19

21

24

27

29

31.5

32.5

34

15

20

25

28

31

34

36

38

40

42

20

25

30

34

37

41

44

47

49

51

25

29

35

40

44

48

52

56

60

63

30

32

38

44

50

55

60

65

68

70

50

45

55

63

70

77

84

90

95

100
MEDİKAL SANAYİ GENEL YAY ÇEŞİTLERİ SİLAH (SAVUNMA) SANAYİ GENEL YAY ÇEŞİTLERİ
Medical Type of Springs Arm & Gun Springs
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megayay.com

Megayay Yay Metal Makina sanayi 

About Megayay Yay Metal Makina sanayi (megayay.com): Firmamız baskı çekme kurma disk zemberek yay yayı yaylar yayları imalatı yapmaktadır.

There are 1,175,469 sites with a better three-month global Alexa traffic rank than Megayay.com. The site's visitors view an average of 6.3 unique pages per day. The site belongs to the “Madencilik ve Sondaj” category of internet sites. Megayay.com is based in Turkey. We estimate that 82% of its visitors are in Turkey, where it has attained a traffic rank of 22,012.

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Alexa traffic rank for megayay.com:

  Traffic Rank Change
1 month 1,152,303 -60,102 Change in Traffic Rank over the trailing 1 month period (A negative change means the site is getting more popular)
3 month 1,175,470 -338,523 Change in Traffic Rank over the trailing 3 month period (A negative change means the site is getting more popular)

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  Pageviews Change
1 month 0.00001 +60% Change in Pageviews over the trailing 1 month period
3 month 0.00001 +41% Change in Pageviews over the trailing 3 month period

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  Reach Change
1 month 0.00009 -6% Change in Reach over the trailing 1 month period
3 month 0.00009 +40% Change in Reach over the trailing 3 month period

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  Bounce % Change
1 month 17.90000 -31% Change in Bounce % over the trailing 1 month period
3 month 29.40000 +9% Change in Bounce % over the trailing 3 month period

Daily pageviews per user for megayay.com:

  Pageviews/User Change
1 month 8.00000 +70% Change in Pageviews/User over the trailing 1 month period
3 month 6.30000 -2% Change in Pageviews/User over the trailing 3 month period

Daily time on site for megayay.com:

  Time on Site Change
1 month 8.88667 +44% Change in Time on Site over the trailing 1 month period
3 month 6.54833 +5% Change in Time on Site over the trailing 3 month period
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Megayay.com’s Worldwide Traffic Rank

Country

Rank

Turkey Flag  Turkey

22,012

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Query Percent of Search Traffic
1 disk yayları 15.90%
2 disk yayı 15.57%
3 baskı yay 10.43%
4 mega yay imalatı 5.24%
5 baskı yayları 4.28%
6 baskı yaylar 4.28%
7 yay nedir demir 3.67%

 

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Period Percent of Site Traffic
Last 30 days 6%
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Search Query 1 Month Increase The change in percentage of search traffic to megayay.com for each query.
1 sertlİk mukayese tablosu 1.64%
2 çanak çeşitleri 1.61%
3 disk yayı 0.08%
4 baskı yay 0.08%
5 mega yay imalatı 0.05%
6 baskı yaylar 0.05%
7 baskı yayları 0.05%
8 yay nedir demir 0.04%
9 yüzey sertleştirme işlemleri 0.03%
10 yay çeşitleri 0.02%
Search Query 1 Month Decline The change in percentage of search traffic to megayay.com for each query.
1 kurma yayı nedir 1.87%
2 yay hesapları 0.69%
3 kurma yayı 0.61%
4 türkfirma rehberi 0.50%
5 disk yayları 0.15%
6 astrolojist.com 0.02%
7 menevişleme 0.01%
8 çekme yaylar 0.01%
9 çekme yayları 0.01%
10 sementit 0.01%


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Impact Factor is a combined measurement of the importance of a particular phrase to the site's search traffic and the level of search engine advertising competition (QCI). The index is on a scale of 0 to 100.

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helicoil 0.75 32 37
dmoz.org firma rehberi 0.69 2 10
normalize edilmiş tablo 0.52 2 10
yayse yay.? ve mak. 0.49 2 10
navigon 0.20 58 28
helical 0.19 25 25
baskı 0.03 12 61
kaplin 0.02 21 70
plastik 0.01 34 53
proses 0.01 21 10
şerit 0.00 10 10
üretim 0.00 11 27
firma rehberi 0.00 33 87
vikipedi 0.00 44 10
rehberi 0.00 13 20
nasıl yapılır 0.00 21 20
helezon 0.00 12 51
nasıl 0.00 16 15
satış 0.00 21 60
farklı 0.00 13 10
Çelik 0.00 5 20
formspring 0.00 51 15
dinamometre 0.00 31 14
 

Search Engine Marketing (SEM) Activity by megayay.com

Ads for megayay.com have appeared on major search engines when people performed the queries below. Click on the queries below to discover more information.

No data available for megayay.com

 

Search Engine Marketing (SEM) Opportunities for megayay.com

Queries that provide opportunities for this site to advertise through Search Engine Marketing (SEM) to get more traffic. They are popular queries that are relevant to the site, and have low competition in search engine marketing. Learn More Many sites are actively advertising in search engines for the most valuable search queries. This high level of competition tends to result in high advertising costs, which makes it difficult to find attractive advertising opportunities. These opportunities may still exist, however, by looking at the "long tail". The long tail contains search queries with lower Query Popularity, but such queries also tend to have lower QCI. By advertising for many of these queries, sites may still be able to manage an effective search engine marketing campaign. Note that not all queries on the long tail may be very relevant to this site, but this list may contain a number of strong advertising candidates.

Query Query
A phrase that may provide “megayay.com” with a search engine marketing opportunity. 		Opportunity Opportunity
A higher value indicates higher expected search traffic to “megayay.com” from low-CPC (cost per click) SEM campaigns for this Query. A higher value tends to have a high Query Popularity, low QCI, and low Share of Voice for “megayay.com”. The index is on a scale of 0 to 100.

Updated Monthly 		Query Popularity Query Popularity
An estimate of how frequently users search for these keywords, on a scale from 0 to 100. Higher numbers indicate higher frequencies.

Updated Monthly 		QCI The Query Competition Index
QCI indicates the typical number of ads displayed for keyword searches on major search engines. A large number of ads indicates strong advertising competition for a query. The index is on a scale from 0 to 100.

Updated Monthly
yay nedir demir 14.09 4 10
baskı yayı 13.67 4 10
dmoz.org firma rehberi 12.60 2 10
normalize edilmiş tablo 12.22 2 10
yayse yay.? ve mak. 12.16 2 10
vikipedi 9.78 44 10
navigon 7.59 58 28
helicoil 6.99 32 37
helical 4.32 25 25
formspring 4.28 51 15
helezon 1.86 12 51
türkiye 0.45 41 13
Megayay.com
camdibi, yesilova
izmir, t.c. 35090, Ege 35090, ege 35090
turkey
yildiray.celik [at] gmail.com



Whois

Who is megayay.com? Whois lookup at Network Solutions.


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Review Summary for megayay.com

5 Stars
(based on 1 reviews)
1 out of 1 people would recommend this site to a friend.

5 stars (1)
4 stars (0)
3 stars (0)
2 stars (0)
1 stars (0)
Likes
Active community 1
Easy to navigate 1
Good content 1
Good customer support 1
Good deals 1
Site is fast and responsive 1


Reviews for megayay.com

I would recommend
this site to a friend
bayram (First Time Visitor)

The best use of this site is News.

Likes
  • Active community
  • Easy to navigate
  • Good content
  • Good customer support
  • Good deals
  • Site is fast and responsive

Comments: compression tension torsion disc springs maker
Thanks!



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Audience Demographics for Megayay.com

Relative to the general internet population how popular is megayay.com with each audience below?

No data available for this site.


Advanced Demographics for megayay.com

Audience breakdown by income, ethnicity, age, education, gender, children and browsing location.




No data available for this site.



Compare megayay.com to:
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Visitors by Country for Megayay.com

Country

Percent of Site Traffic

Turkey Flag  Turkey

82.2%

OTHER Flag  OTHER

17.8%

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High Impact Search Queries for Megayay.com

Query Impact
1 baskı yayları High
2 yay nedir demir Medium
3 baskı yayı Medium
4 çeliklere uygulanan ısıl işlemleri Low
5 helicoil Low
6 dmoz.org firma rehberi Low
7 normalize edilmiş tablo Low

Top Search Queries for Megayay.com

Query Percent of Search Traffic
1 disk yayları 15.90%
2 disk yayı 15.57%
3 baskı yay 10.43%
4 mega yay imalatı 5.24%
5 baskı yayları 4.28%
6 baskı yaylar 4.28%
7 yay nedir demir 3.67%

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