Standard Disc Springs / DIN 2093 Group A

250.00127.0013.10*19.60

CENTURY_SPRING model reference: CDM-25012714 · CENTURY-DISC-SPRINGS-2014 · locator 19

CHRISTIAN_BAUER model reference: 105 239 · CB-DISC-SPRINGS-0611 · locator 166

MUBEA model reference: 19 0039 · MUBEA-MANUAL-2023 · printed p.74 (PDF p.76)

SCHNORR model reference: 024000 · SCHNORR-HANDBOOK-EN · locator 96

Dimensions, standards and downloadable engineering files are generated from published product data.

Made to order

SPECIFICATION

Product data

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Outside diameter De: 250.00 mm
Inside diameter Di: 127.00 mm
Product thickness t′: 13.10 mm
Calculation reference thickness t: 14.00 mm
Free height l₀: 19.60 mm
Cone height h₀: 5.60 mm
Standard: DIN 2093
Material / surface treatment: 51CrV4 Spring SteelZinc phosphate and oil · Cold presetting / scraggingERP: 250.00*127.00*13.10*19.60-TP-B14.00-H5.60-51CRV4-PHOSPHATE_OIL-PS60Si2MnAZinc phosphate and oil · Cold presetting / scraggingERP: 250.00*127.00*13.10*19.60-TP-B14.00-H5.60-60SI2MNA-PHOSPHATE_OIL-PS
Temperature: -50 – 300 °C

ENGINEERING FILES

CAD / DXF / STEP

Repository CAD · direct download

250.00*127.00*13.10*19.60 DXF and DWG engineering drawing preview

Open full drawing preview

DWG250.00*127.00*13.10*19.60 DWG CADJH-DS-250.00-127.00-13.10-19.60-P564-EN-R10.dwg · 51 KB

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DXF250.00*127.00*13.10*19.60 DXF CADJH-DS-250.00-127.00-13.10-19.60-P564-EN-R10.dxf · 129 KB

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STEP250.00*127.00*13.10*19.60 STEP CADJH-DS-250.00-127.00-13.10-19.60-P564-R10.step · 24 KB

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STL250.00*127.00*13.10*19.60 STL CADJH-DS-250.00-127.00-13.10-19.60-P564-R10.stl · 978 KB

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ENGINEERING OVERVIEW

Candidate decision overview

Data version 3

GEOMETRY CONTRACT

conical-contact-flats

Bearing surfaces: Yes
Tolerance grade: See dossier / confirm

Special surface parameters must be reviewed against the released drawing; the profile name alone is not a complete geometry definition.

EVIDENCE COVERAGE

✓Manufacturer curve / stress4✓Polysplendid calculations2✓Resolved standards2✓Inspection dossier1—Approved product FEMNot public

A missing FEM record is not evidence of failed validation. It means no approved product-level study is public on this page.

COMBINATION BOUNDARY

Check single disc before stack

Parallel stacks primarily multiply load; series stacks primarily multiply travel. Friction, contact, guidance, preload and manufacturing scatter must be checked separately.

Stack and curves Fatigue / relaxation boundary Calculate this product

CF-07 · PROCESS CARD LIBRARY

Manufacturing process cards

4 material route(s)

Each material and supplied-surface identity has its own database-driven workbook and PNG preview. A review or blocked status is not a production release.

V751 · R04

50CrVA

BLACK_OXIDE

FORGED_RING+LOW_ALLOY_QT+SUPPORT_FACE_PRE_HT_TURN+STRONG_PRESS+BLACK_OXIDE

Blocked — not for production

Download Excel · 21.3 kB

V753 · R04

51CrV4

PHOSPHATE_OIL

FORGED_RING+LOW_ALLOY_QT+SUPPORT_FACE_PRE_HT_TURN+STRONG_PRESS+PHOSPHATE_OIL

Blocked — not for production

Download Excel · 21 kB

V752 · R04

60Si2MnA

BLACK_OXIDE

FORGED_RING+LOW_ALLOY_QT+SUPPORT_FACE_PRE_HT_TURN+STRONG_PRESS+BLACK_OXIDE

Blocked — not for production

Download Excel · 21.3 kB

V19385 · R04

60Si2MnA

PHOSPHATE_OIL

FORGED_RING+LOW_ALLOY_QT+SUPPORT_FACE_PRE_HT_TURN+STRONG_PRESS+PHOSPHATE_OIL

Blocked — not for production

Download Excel · 21.3 kB

APPROVED SOURCE DATA

Manufacturer engineering data

4 traceable datasets

Loads, stresses, thousand-piece weights and curves retain their manufacturer, source version, page/worksheet, material and temperature condition. A catalog value is an engineering reference unless the inspection dossier separately identifies an approved acceptance tolerance.

Century Spring / MW Industries CDM-25012714Manufacturer catalog curve

Source: Century Spring Precision Disc Springs / 2014-01
Location: page 19
Material: AISI C1075 or AISI 6150 carbon/alloy steel
Temperature: Not stated - not assumed
Curve scope: four_point_curve / loading
1000-piece weight: —

Published source points only; no interpolation.

Point	s/h0	s (mm)	F (N)	σ1 / σII (MPa)	σ2 / σIII (MPa)	σ3 (MPa)	σOM (MPa)
25% h	0.250	1.6459	98,399	503	—	—	—
50% h	0.500	3.2893	184,824	965	—	—	—
75% h	0.750	4.9352	263,268	1,448	—	—	—
100% h	1.000	6.5811	337,727	2,082	—	—	—

Christian Bauer GmbH + Co. KG 105 239Manufacturer workbook calculation

Source: Christian Bauer cb_cV4 Product List / local reference edition
Location: Liste row 297
Material: Not stated in this source table
Temperature: Not stated - not assumed
Curve scope: single_point / loading
1000-piece weight: —

Point	s/h0	s (mm)	F (N)	σ1 / σII (MPa)	σ2 / σIII (MPa)	σ3 (MPa)	σOM (MPa)
75% h0	0.750	4.8750	248,800	—	—	—	—

Mubea 19 0039Manufacturer calculation workbook

Source: Disc Spring Calculation Program 032 / 032
Location: Standard row 247
Material: Not stated in this source table
Temperature: Not stated - not assumed
Curve scope: four_point_curve / loading
1000-piece weight: 3,745.000 kg

Published source points only; no interpolation.

Point	s/h0	s (mm)	F (N)	σ1 / σII (MPa)	σ2 / σIII (MPa)	σ3 (MPa)	σOM (MPa)
25% h0	0.250	1.4000	93,239	813	328	444	—
50% h0	0.500	2.8000	175,145	1,568	715	851	—
75% h0	0.750	4.2000	248,828	2,264	1,160	1,221	—
100% h0	1.000	6.5000	360,229	3,281	2,018	1,748	—

SCHNORR GmbH 024000Manufacturer catalog summary

Source: Schnorr Disc Springs Handbook / source copy in project archive
Location: page 96
Material: Not stated in this source table
Temperature: Not stated - not assumed
Curve scope: summary_only / loading
1000-piece weight: 3,732.000 kg

This source table publishes a summary (weight and/or σOM) but no displacement-load points; no curve has been invented.

STANDARD DOSSIER

Resolved standard requirements

36 resolved items

PS/DS-G01-2026Polysplendid disc-spring engineering recommendations (non-mandatory)

Series A · Group 3 · with bearing surfaces

ProductRecommended edge-radius range (enterprise drawing rule)

t产品 / 6 ≤ R ≤ t产品 / 5；product limits 2.183333–2.62 mm；product recommendation 2.183333 mm；Use actual product thickness: t for plain T products and t-prime for reduced TP products. CAD defaults to the lower bound while drawings expose the full recommended range.

Disc Spring Contact Surfaces · Machinery's Handbook 31st, p.390（厂商经验转述）

ProductPolysplendid default working-deflection range

0.2–0.75 h0；product limits 1.12–4.2 mm

聚辉推荐 DS-G01 · Mubea 2023 manual PDF 27；SPIROL deflection-range white paper

ProductInitial contact-flat width recommendation (verify by FEM/test)

b ≈ De / 150；product recommendation 1.666667 mm

contact-flat width recommendation · Ferrari 2013, p.66（本地《支撑面计算.pdf》PDF 4）

ProductNormal parallel-stack count recommendation

1–4

3.10 Spring stack design · Mubea Disc Springs Manual 2023, PDF 24

ProductSeries-stack limit for standard fatigue-chart evidence

See requirement data

10.2.2 · DIN EN 16983 page 18（PDF 20）

ProcessGuidance and stack lubrication

按温度、介质和寿命选择油、脂、含二硫化钼膏或固体润滑；不得把未润滑摩擦忽略

guidance / lubrication / friction · Mubea 2023 manual PDF 25, 28～31；Christian Bauer theory PDF 17

ProductGuidance preference

优先内导柱；空间或结构要求时使用外导套；低迟滞需求评估自定心结构

C.1 / 3.10 · GB/T 1972.2 附录 C；Mubea 2023 manual PDF 24～25

ProductGeometry triggers for enhanced analysis

De/Di=1.968504，De/t=17.857143，within simplified-geometry range

3.9 Special cases · Mubea Disc Springs Manual 2023, PDF 21

DIN EN 16983:2017-09Disc springs — Quality specifications — Dimensions

Series A · Group 3 · with bearing surfaces

ProductDisc spring group 3

Table 2 · EN 16983 pages 6～7（PDF 8～9）

ProductDimension series A

Table 3 · EN 16983 pages 6～7（PDF 8～9）

ProductStandard spring steel requirement

EN 10083 / EN 10089 / EN 10132-4 MPa

5 · EN 16983 page 7（PDF 9）

ProcessGroup 3 manufacturing and surface finish

冷/热成形、全面加工、边缘倒圆

Table 7 · EN 16983 page 11（PDF 13）

ProductThickness tolerance

deviation -0.1 / +0.1 mm；product limits 13–13.2 mm

Table 8 · EN 16983 page 13（PDF 15）

ProductOutside diameter h12 tolerance

deviation -0.46 / 0 mm；product limits 249.54–250 mm；h12

8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）

ProductInside diameter H12 tolerance

deviation 0 / +0.4 mm；product limits 127–127.4 mm；H12

8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）

ProductFree-height tolerance

deviation -0.3 / +0.3 mm；product limits 19.3–19.9 mm

Table 9 · EN 16983 page 13（PDF 15）

ProductTest-load tolerance

deviation -5 / +5 %；test position 0.75 h0

Table 10 · EN 16983 pages 13～14（PDF 15～16）

ProductCoaxiality tolerance

0.92 mm；2 × IT12

8.1 / ISO 286-2 · EN 16983 page 12（PDF 14）

InspectionGroup 3 / series A minimum unloading-force ratio

See requirement data

Table 11 · EN 16983 page 15（PDF 17）

ProductGroup 3 hardness

42–52 HRC

7.2 · EN 16983 page 11（PDF 13）

ProductRecommended total clearance for guide pin

1 mm；recommended guide pin diameter 126 mm

Table 12 · EN 16983 page 15（PDF 17）

ProductRecommended total clearance for guide sleeve

1.6 mm；recommended guide sleeve bore 251.6 mm

Table 12 · EN 16983 page 15（PDF 17）

ProductGuide component surface requirement

See requirement data

12 · EN 16983 section 12, page 21（PDF 23）

ProcessPresetting

2 × test load；压至平位后复核自由高度与检测负荷

7.4 / 8.4.2 · EN 16983 pages 12, 14（PDF 14, 16）

ProcessSurface quality and edges

无影响性能的斑疤、裂纹、锈蚀；边缘倒圆或去毛刺

7.5 · EN 16983 page 12（PDF 14）

ProcessSurface treatment and corrosion protection

phosphated and oiled

7.5 · EN 16983 page 12（PDF 14）

ProcessShot peening

recommended for dynamic duty where fatigue-life improvement is required；process agreement required

10.2.2 · EN 16983 page 20（PDF 22）

InspectionDecarburization depth

product maximum depth 0.393 mm

7.2 · EN 16983 page 11（PDF 13）

ProductStatic calculated stress limit

See requirement data

10.1 · EN 16983 page 17（PDF 19）

ProductMinimum preload for dynamic duty

0.15–0.2 h0；product limits 0.84–1.12 mm

10.2.1 · EN 16983 page 18（PDF 20）

ProductRelaxation and operating-temperature note

Consult the manufacturer above 100 °C for material, stress and relaxation requirements

9 / Figures 3–4 · EN 16983 page 17（PDF 19）

InspectionTest-load method

test position 0.75 h0；硬化、磨削并抛光的压盘；使用适合润滑剂

8.4.1 · EN 16983 page 13（PDF 15）

InspectionDimensional inspection method

按标准约定的量具、压盘及测量条件执行

8 · EN 16983 pages 13～14（PDF 15～16）

InspectionHardness test method and location

See requirement data

11.3 · EN 16983 page 21（PDF 23）

BatchBatch sampling and acceptance

Acceptance inspection according to EN ISO 3269 where applicable

2 · EN 16983 pages 11～18（PDF 13～20）

PackagingMarking, packaging and storage

Contract and product documentation requirements apply

contract · EN 16983 pages 11～18（PDF 13～20）

INSPECTION DOSSIER

Product inspection requirements

7 acceptance limits

Data boundary: 平面度没有标准通用数值，等待图纸/工艺卡/供需协议覆盖; 平行度没有标准通用数值，等待图纸/工艺卡/供需协议覆盖

Characteristic	Requirement / limits	Status	Source
Outside diameterD / De	250 mm (-0.46/+0 mm); limits 249.54–250 mmThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 12（PDF 14）
Inside diameterd / Di	127 mm (+0/+0.4 mm); limits 127–127.4 mmThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 12（PDF 14）
Product thicknesst / t′	13.1 mm (-0.1/+0.1 mm); limits 13–13.2 mmThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 13（PDF 15）
Free heightH0 / l₀	19.6 mm (-0.3/+0.3 mm); limits 19.3–19.9 mmThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 13（PDF 15）
Cone heighth0 / h₀	5.6 mmFor Group 3, h0 uses the standard-table nominal base thickness t. The finished t-prime tolerance is not reused to derive h0 acceptance limits; only nominal h0 is shown.	nominal_reference_only	DIN-EN-16983-2017-09Task 112 standard A/B/C master geometry
Coaxiality—	≤ 0.92 mmThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 12（PDF 14）
Flatness—	Set by approved drawing, process card or supply agreementThe standard does not provide a universal independent numeric tolerance; an approved drawing, process card or supply agreement must provide the acceptance value.	Agreement required	POLYSPLENDID-INSPECTION-POLICY-2026-08Task 121 标准原文核对结论
Parallelism—	Set by approved drawing, process card or supply agreementThe standard does not provide a universal independent numeric tolerance; an approved drawing, process card or supply agreement must provide the acceptance value.	Agreement required	POLYSPLENDID-INSPECTION-POLICY-2026-08Task 121 标准原文核对结论
Test loadFt	248828 N (-5/+5%); limits 236386.6–261269.4 NThe nominal test load comes from the current published standard, manufacturer, or engineering dataset; limits use the applicable DIN EN 16983 percentage tolerance.	Resolved	DIN EN 16983:2017-09EN 16983 pages 13～14（PDF 15～16）
Hardness—	42–52 HRCThe standard rule has been resolved for this specific product.	Resolved	DIN EN 16983:2017-09EN 16983 page 11（PDF 13）

Where cone-height limits are shown, they are derived references only. Flatness and parallelism become acceptance criteria only after an approved drawing, process card or supply agreement supplies numeric values.

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