Ondrives: Fasteners - Washers - JTEM - Polysorb Disc Springs

JTEM : Polysorb Disc Springs 5.2-20.4mm Bores

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JTEM Type : Igus Polysorb Disc Springs

JTEM Type : Igus Polysorb Disc Springs

Discounts

1+ 0%

6+ 12%

20+ 25%

60+ 37%

100+ 42%

200+ 48%

500+ 55%

1000+ 65%

2000+ 70%

Part Number	De	Di	t	h0	S0.25	F0.25 N	S0.5	F0.5 N	S0.75	F0.75 N	F1.0 N	Mass (g)	Cost	Quantity	Add to Basket
JTEM-05	10.0	5.2	0.50	0.25	0.06	1	0.13	2.4	0.19	3.6	5	0.04	£3.57
JTEM-06	12.5	6.2	0.70	0.30	0.08	3	0.15	5.1	0.23	8.0	12	0.11	£3.76
JTEM-08	16.0	8.2	0.90	0.35	0.09	4	0.18	8.0	0.28	11.0	12	0.20	£3.78
JTEM-10	20.0	10.2	1.10	0.45	0.11	5	0.22	10.0	0.33	15.0	18	0.33	£4.00
JTEM-12	25.0	12.2	1.50	0.55	0.14	9	0.28	18.0	0.42	27.0	35	0.85	£4.39
JTEM-16	31.5	16.3	1.75	0.70	0.18	15	0.35	32.0	0.53	51.0	70	1.44	£4.95
JTEM-20	40.0	20.4	2.25	0.90	0.23	35	0.45	70.0	0.68	110.0	140	3.10	£5.23

The standard values for the spring lengths and forces represent round mean values

Features
Spring washers are discs that can be axially loaded, which are concave in the axial direction on the plate surface.
Polysorb disc springs require less space than other spring types. They are especially suitable for designs
that do not require a high spring length as the spring length of a disc spring is relatively small.
In practice a number of disc springs are combined.

Disc springs that are alternately stacked increase the spring length proportionally to the amount of springs.
The total spring force is as large as the force of one single disc spring.
In order to increase the force, the disc springs can be parallel stacked to form a spring packet.

Polysorb disc springs are resistant to diluted alkalines and very weak acids, as well as against fuels and all types of lubricants.
The low moisture absorption permits the use in wet or moist environments.

Polysorb disc springs absorb moisture. In the process their mechanical properties change.
However, in the worst application case - a long lasting use in water - Polysorb disc springs still have a maximum spring force of 10 N.

Increased temperatures reduces the rigidity of polymers.
Polysorb disc springs still have a maximum spring force of 8 N at the maximum permissible temperature of 80°C.

Symbols & Units

F = Force
S = Spring length
De = Outside Diameter [mm]
Di = Inside Diameter [mm]
t = Plate thickness [mm]
h0 = Maximum spring displacement [mm]
S0.25 = 25% of max. spring displacement [mm]

F0.25 = Spring Force 25% displacement [N]
S0.5 = 50% of max. spring displacement [mm]
F0.5 = Spring Force 50% displacement [N]
S0.75 = 75% of max. spring displacement [mm]
F075 = Spring Force 75% displacement [N]
F1.0 = Spring Force 100% displacement [N]
M = Mass of one disc spring [g]

When To Use Polysorb 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 reduction
• electrical and thermal insulation
• no lubrication necessary
• lightweight
• low profile dimensions
• non magnetic

Downloads
PDF Documents : Catalogue Pages