igus® inc. - Polysorb® Polymer Spring Washers

Polysorb^®
Polymer Spring Washers

Polysorb^® all-polymer disc springs

Spring washers are discs that can be axially loaded, which are concave in the axial direction on the plate surface. The all-polymer disc springs require less space than other spring types. They are especially suitable for designs that do not require a high spring length.

Polysorb ® offers the following advantages:

Compensation for axial clearances and manufacturing tolerances
Vibration dampening
Noise dampening
Corrosion-free
Lightweight

Load Capacity
Load resistance is influenced by the operating environment. Load resistance decreases as temperature and water absorption (humidity) increases. Polysorb ® disc springs are made from iglide® J, which has a very low water absorption rate.

Chemical Resistance
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 use in wet or moist environments.

Increase Temperatures
Increased temperatures reduce polymer rigidity. Polysorb disc springs still have a maximum spring force of 8 N at the maximum permissible temperature of 176°F.

PolySorb PDF Catalog

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

				Nominal Dimensions			Spring Travel and Load Resistance, average value of performance tests, at room temp. and low humidity
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				5.2	10.0	0.5	0.25	0.06	1	0.13	2.4	0.19	3.6	5	0.04
JTEM-06				6.2	12.5	0.7	0.30	0.08	3	0.15	5.1	0.23	8	12	0.11
JTEM-08				8.2	16.0	0.9	0.35	0.09	4	0.18	8	0.26	11	12	0.20
JTEM-10				10.2	20.0	1.1	0.45	0.11	5	0.22	10	0.33	15	18	0.33
JTEM-12				12.2	25.0	1.5	0.55	0.14	9	0.28	18	0.42	27	35	0.85
JTEM-16				16.3	31.5	1.75	0.70	0.18	15	0.35	32	0.53	51	70	1.44
JTEM-20				20.4	40.0	2.25	0.90	0.23	35	0.45	70	0.68	110	140	3.10