EN 16983 (DIN 2093) & Belleville Disc Springs
- What counterpart material should be used for Disc Springs?
- Material for springs
- With what torque are nuts for Disc Springs tightened?
- What is the outside diameter tolerance of Disc Springs according to DIN 2093?
- What is the influence of friction on the force in the disc spring column?
- What is the length L1 of the Disc Spring?
- Febrotec Search
- Which overall height tolerances are specifified in DIN 2093 for Disc Springs?
- What is the guide tolerance between shaft and hole?
Part Number
|
Outer ø
|
Inner ø | Thickness | Unloaded Length | Reduced Thickness | Loaded Length | Force at Length L1 | Standard | Disc Spring Group | Material Code | Stock | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Da | Di | t | L0 | t´ | L1 | F1 | Available | |||||||
| [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [N] |
|
|||||||
| 0B0187-007 | 4.75 | 2.36 | 0.17 | 0.33 | 0 | 0.25 | 30.25 | Belleville | 1.1248 |
|
Details | |||
| 0B0187-007-S | 4.75 | 2.36 | 0.17 | 0.33 | 0 | 0.25 | 30.05 | Belleville | 1.4310 |
|
Details | |||
| 0B0187-010 | 4.75 | 2.36 | 0.25 | 0.38 | 0 | 0.32 | 68.05 | Belleville | 1.1248 |
|
Details | |||
| 0B0187-010-S | 4.75 | 2.36 | 0.25 | 0.38 | 0 | 0.32 | 68.05 | Belleville | 1.4310 |
|
Details | |||
| 0S4201 | 6 | 3.2 | 0.3 | 0.45 | 0 | 0.34 | 119 | ~ EN16983(2093) | 1 | 1.1231 |
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Details | ||
| 0S4201E | 6 | 3.2 | 0.3 | 0.45 | 0 | 0.34 | 110 | ~ EN16983(2093) | 1.4310 |
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Details | |||
| 0B0250-009 | 6.35 | 3.18 | 0.22 | 0.44 | 0 | 0.33 | 52.05 | Belleville | 1.1248 |
|
Details | |||
| 0B0250-009-S | 6.35 | 3.18 | 0.22 | 0.44 | 0 | 0.33 | 52.05 | Belleville | 1.4310 |
|
Details | |||
| 0B0250-013 | 6.35 | 3.18 | 0.34 | 0.51 | 0 | 0.43 | 117 | Belleville | 1.1248 |
|
Details | |||
| 0B0250-013-S | 6.35 | 3.18 | 0.34 | 0.51 | 0 | 0.43 | 115.7 | Belleville | 1.4310 |
|
Details | |||
| 0B0281-010 | 7.14 | 3.51 | 0.25 | 0.51 | 0 | 0.38 | 66.75 | Belleville | 1.1248 |
|
Details | |||
| 0B0281-013 | 7.14 | 3.51 | 0.33 | 0.53 | 0 | 0.43 | 109 | Belleville | 1.1248 |
|
Details |
Our disc springs Belleville are disc springs from the inch size range and often have larger material thicknesses and proportions than the comparable standardized EN 16983 (DIN 2093) disc springs. All disc springs made from carbon steels and CrV steels are phosphated and oiled.
Disc Spring Groups
Group 1
Disc springs of Group 1 with a material thickness <1.25 mm have a spring force of +25%-7.5%. The disc springs have no bearing surface, reduced material thickness and are punched, cold-formed with rounded edges.
Group 2
Disc springs in Group 2 with a material thickness of 1.25mm to 3.0 mm have a spring force of +15%-7.5%, and disc springs with a material thickness of 3.0mm to 6.0mm have a spring force of +10%-5.0%. The disc springs have no bearing surface, reduced material thickness and are punched and cold formed. The Da and Di are turned and the edges are rounded and finely cut.
Group 3
Disc springs of Group 3 with a material thickness of >6.0 mm to 14.0 mm have a bearing surface, reduced material thickness and are cold or hot formed, turned on all sides and the edges are rounded.
Disc Spring Series
For each diameter combination listed in DIN 2093 there are three different disc spring series:
Series A
Disc springs of Series A have high spring force and an approximately linear characteristic curve.
Series B
Disc springs of Series B have medium spring force and a slightly degressive characteristic.
Series C
Disc spring of Series C have low spring force and a strongly degressive characteristic.
Disc Springs Material
Material Number |
Material Description |
Modulus of Rigidity G N/mm2 |
Young's Modulus E N/mm2 |
Tensile Strength RM N/mm2 |
Tmax °C |
Use |
| 1.1231 | Ck67 (C67S) | 81500 | 210000 | -40 until +80 | Cold-rolled music wire (spring steel) for standard applications disc springs, wave spring washers, leaf springs | |
| 1.1248 | Ck75 (C75S) | 81500 | 210000 | -40 until +80 | Cold-rolled music wire (spring steel) for standard applications disc springs, wave spring washers, leaf springs | |
| 1.8159 | 51CrV4 | 78500 | 206000 | 1350-1650 | -40 until +80 | Hardenable music wire (spring steel) for applications in large wire sizes also suitable for highly dynamic applications chassis springs, turbines |
| 1.4310 | X10CrNi18-8 (V2A) |
73000 | 187500 | 1300-2600 |
-200 until +250
|
Stainless steel for the most common applications suitable for a humid environment, but not seawater resistant slightly magnetic due to work hardening
|
| 1.4568 | X7CrNiAl17-7 | 78000 | 200000 | 1150-2000 |
-200 until +350
|
Precipitation-hardenable chromium-nickel steel for dynamic loads has excellent corrosion resistance aerospace, food industry
|
| 2.4669 |
NiCr15Fe7TiAl
|
75800 | 218000 | 1350-1750 1100-1250 |
+370
+550 |
Music wire (spring steel) made of a nickel-chromium alloy which, when properly heat treated, exhibits outstanding high temperature strength with reduced tensile strength
|
Lubrication for Disc Springs
The lower the friction, the lower the wear between the disc springs and adjacent components. Oil, grease, paste with molybdenum disulfite or other solid lubricants reduce the friction coefficient.
Corrosion protection for Disc Springs
The disc springs we offer are made of carbon steel and have a protective layer of zinc phosphate. A corrosion protection oil is stored in this zinc phosphate layer. Stainless steel disk springs have no additional surface protection against corrosion.
What needs to be taken into account when stacking Disc Springs?
The best disc spring arrangement is that which uses the smallest possible number of disc springs.
The friction increases as the number of disc springs in the stack increases. Therefore, in the case of multiple layers for dynamic operation, no more than 2 to 3 springs should be used in parallel.
As a guide value for stack length=Lo we recommend:
- Lo<=3*Da where the outside diameter=Da. If a greater length cannot be avoided, the stacks should be subdivided by rigid intermediate washers
- Guidance of the disc springs should take place on the inside or the outside; the hardness of the guide mechanism, at 55 to 56 HRC, should exceed that of the disc springs