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- Compensation for axial clearances and manufacturing tolerances
- Vibration dampening
- Noise dampening
- Corrosion-free
- Lightweight
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 When to use Polysorb disc springs:
- Application requires flat spring characteristics, which are only possible in metal at a considerable expense (slotted design)
- Compensation of axial clearances and manufacturing tolerances
- Vibration dampening
- Noise dampening
- Electrical and thermal insulation
- No lubrication necessary
- Lightweight
- Low profile dimensions
- Anti-magnetic
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 When not to use Polysorb disc springs:
- When constant spring forces are necessary over wide temperature ranges
- When high spring forces are required
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| Spring washers are discs that can be axially loaded and are concave in the axial direction. Polysorb disc springs require less space than other spring types. They are especially suitable for designs that do not require a high spring length. |
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Increased Temperatures
Increased temperatures reduce the rigidity of plastics. Polysorb disc springs still have a maximum spring force of 1.80 lbs at the maximum permissible temperature of 176°F.
Chemical Resistance
Polysorb disc springs are resistant against diluted lyes and very weak acids, as well as against fuels and all types of lubricants. The low moisture absorption permits use in wet or moist environments.
Moisture Absorption
Polysorb disc springs absorb moisture. In the process, their mechanical properties change. However, even during long-lasting use in water Polysorb disc springs still have a maximum spring force of 2.24 lbs.
Application Example
Picture 14.1: Polysorb Disc Springs in a fatique test
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h(0) = max travel
m = weight of a single disk Travel = S;
S(25) = 25% of travel,
S(50) = 50% of travel
F = load resistance;
F(25) = load resistance at 25% of travel,
F(50) = load resistance at 50% of travel
all dimensions are in millimeters,
all forces in Newtons
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Nominal Dimensions |
Spring Travel and Load Resistance, average value of performance tests,
at room temp. and low humidity |
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Part |
Pricing |
RFQ/ Sample |
CAD |
ID |
OD |
Thickness |
h(0) mm |
S(25) mm |
F(25) N |
S(50) mm |
F(50) N |
S(75) mm |
F(75) N |
F(100) N |
M
G |
| JTEM-05 |
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5.2 |
10.0 |
0.5 |
0.25 |
0.06 |
1 |
0.13 |
2.4 |
0.19 |
3.6 |
5 |
0.04 |
| JTEM-06 |
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6.2 |
12.5 |
0.7 |
0.30 |
0.08 |
3 |
0.15 |
5.1 |
0.23 |
8 |
12 |
0.11 |
| JTEM-08 |
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8.2 |
16.0 |
0.9 |
0.35 |
0.09 |
4 |
0.18 |
8 |
0.26 |
11 |
12 |
0.20 |
| JTEM-10 |
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10.2 |
20.0 |
1.1 |
0.45 |
0.11 |
5 |
0.22 |
10 |
0.33 |
15 |
18 |
0.33 |
| JTEM-12 |
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12.2 |
25.0 |
1.5 |
0.55 |
0.14 |
9 |
0.28 |
18 |
0.42 |
27 |
35 |
0.85 |
| JTEM-16 |
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16.3 |
31.5 |
1.75 |
0.70 |
0.18 |
15 |
0.35 |
32 |
0.53 |
51 |
70 |
1.44 |
| JTEM-20 |
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20.4 |
40.0 |
2.25 |
0.90 |
0.23 |
35 |
0.45 |
70 |
0.68 |
110 |
140 |
3.10 |
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