Retaining Ring made of POM

Product specification Retaining rings for shafts and axes with available nut Rings with... more

Product specification

Retaining rings for shafts and axes with available nut

Rings with mounting lip for easy assembly and disassembly

Absorption of axial forces possible

Work like anti-friction washers

Chemical features:

Well suited for solvents, petrol, mineral oils and fats, alcohols and hydraulic fluids; resistant to weak acids and alkalis

Material properties:

POM features an interesting combination of strong hardness with dimensional stability and nevertheless high impact resistance

Shatter-proof

High toughness and hardness even at low temperatures

Very high resilience

Good resistance to stress cracking

Very good sliding and wear behavior, low friction values and good abrasion resistance

High fatigue strength with changing stress conditions

High dimensional stability under heat

Low water absorption

Very high dimensional stability, thus preferred material for precision, machine and apparatus construction; suitable for narrow tolerances

Good electrical properties

Approved for food

Weldable; bondable only after pretreatment

Technical specification

Material: POM (polyoxymethylene)

Colour: black

Density: 1.41 g/cm³ (DIN 53479)

Temperature range: -60 to +110 °C, for a short time +140 °C

Tensile modulus: 3,000 N/mm² (DIN 53457)

Tensile strength: 70 N/mm² (DIN 53455)

Elongation at break: 40 % (ISO 527)

Bending stress: 3,000 N/mm²

Rockwell hardness R: M 86

Ball pressure hardness (30 s): 174 MPa (ISO 2039-1)

Notch impact strength: 7 - 8 kJ/m² (DIN 53453)

Water absorption: 0.7 % (10 d, +25 °C)

Coefficient of

thermal conductivity: 0.37 W/m * K (DIN 52612)

Flammability rating: UL 94 HB

Oxygen index: 15 % (ASTM D 2863)

Dielectric strength: approx. 30 kV/mm at 1.5 mm thickness (DIN 53481)

Volume resistivity: 10¹⁵ - 10¹⁷ Ohm x cm (DIN 53482)

Surface resistance: approx. 10¹⁵ Ohm (DIN 53482)

No additional information available.

Item	d mm	D mm	g mm	h mm	H mm	Unit piece	Price Euro*
308904	2,3	6	3 - 4	1	1,5	50	22.00
308905	2,3	6	3 - 4	1	1,5	100	35.00
308906	3,2	7	4 - 5	1	1,4	50	22.00
308907	3,2	7	4 - 5	1	1,4	100	35.00
308908	4	9	5 - 7	1,1	1,5	50	24.00
308909	4	9	5 - 7	1,1	1,5	100	39.00
308910	5	11	6 - 8	1,1	1,6	50	24.00
308911	5	11	6 - 8	1,1	1,6	100	39.00
308912	7	14	8 - 11	1,3	1,8	25	26.00
308913	7	14	8 - 11	1,3	1,8	50	45.00
308914	9	18,5	10 - 14	1,4	2,1	25	26.00
308915	9	18,5	10 - 14	1,4	2,1	50	45.00
308916	12	23	13 - 18	1,7	2,7	25	30.00
308917	12	23	13 - 18	1,7	2,7	50	52.00