Washer (DIN 9021) made of PA

Technical specification Material: PA 6 (polyamide 6) Colour: natural... more

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Technical specification

Material: PA 6 (polyamide 6)

Colour: natural

Regulations: DIN 9021, ISO 7093, DIN 34816

General Information Universal washers or spacer rings Ideal sliding rings between rotating... more

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General Information

Universal washers or spacer rings

Ideal sliding rings between rotating parts

Insulate moisture and electricity

Absorb vibrations

Chemical features:

Resistant to aromatic and aliphatic hydrocarbons, fuels, mineral oils and mineral lubricants; suitable for alkohols, esters, ketones, ethers and amines; good resistance to weak alkalis, but only moderate resistance to strong alkalis; limited resistance to weak mineral and organic acids; not resistant to oxidizing acids, strong mineral and organic acids as well as phenols; limited resistance to hydrolysis

Material specification:

Polyamide is an elastic, tough, loadable, but notch-sensitive material

Impact resistant

Resistant to abrasion and cold

High fatigue strength and excellent resilience

High wear resistance and good mechanical damping capacity

Insulating properties and an amazingly high tensile strength

Connecting parts made of polyamide and similar plastics protect from rust and corrosion damage

Polyamide can also be used in the food processing industry and in medical fields

PA 6 features a higher impact resistance compared to PA 6.6

PA 6 has the highest water absorption of all common plastics up to 9 to 10 % (followed by PA 6.6 with 8 to 9 %), thus considerably increased toughness, flexibility and elongation. However, the strength of the material can therefore be reduced by up to 10 %.

Material: PA 6 (polyamide 6)

Colour: natural

Density: approx. 1.14 g/cm³

Temperature range: -40 to +85 °C, for a short time +180 °C

Melting temperature: +220 °C (ISO 11357)

Yield stress: 75 MPa (ISO 527)

Elongation at break: >50 % (ISO 527)

Elastic modulus: 3,200 MPa (ISO 527)

Impact resistance: without break (DIN 53453)

Notch impact strength (Charpy): >3 kJ/m² (ISO 179)

Ball pressure hardness: 160 N/mm² (ISO 2039-1)

Shore hardness D: 82° (DIN 53505)

Dielectric strength: 20 kV/mm (IEC 60243)

Dielectric constant: 3.9 at 50 Hz (IEC 60250)

Surface resistance: 10¹³ Ohm (IEC 60093)

Volume resistivity: 10¹⁵ Ohm x cm (IEC 60093)

Comparative tracking index (CTI): >600 (DIN 53480)

Dielectric loss factor (at 50 Hz): 0.02 (specimen dry)

Water absorption: up to 10 % (during storage in water) (DIN 53472)

Flammability rating: UL 94 HB

Item	For thread	d mm	D mm	h mm	Einheit Stück	Price Euro*
306746	M2,5	2,7	8	0,8	50	41.00
351030	M2,5	2,7	8	0,8	100	50.00
309012	M3	3,2	9	0,8	50	7.00
309013	M3	3,2	9	0,8	100	11.00
309014	M4	4,3	12	1	50	8.00
309015	M4	4,3	12	1	100	13.00
309016	M5	5,3	15	1,2	50	11.00
309017	M5	5,3	15	1,2	100	18.00
309018	M6	6,4	18	1,6	50	15.00
309019	M6	6,4	18	1,6	100	26.00
309020	M8	8,4	24	2	50	22.00
309021	M8	8,4	24	2	100	35.00
336392	M8	8,4	25	2	50	24.00
336393	M8	8,4	25	2	100	39.00
309022	M10	10,5	30	2,5	50	35.00
309023	M10	10,5	30	2,5	100	58.00
309024	M12	13	37	3	25	26.00
309025	M12	13	37	3	50	43.00
306618	M12	13	40	3	25	36.00
306621	M12	13	40	3	50	61.00
309026	M14	15	44	3	10	26.00
309027	M14	15	44	3	25	58.00
309028	M18	20	56	4	10	27.00
309029	M18	20	56	4	25	59.00
309030	M20	22	60	4	10	33.00