Delrin Rod

Polyacetal also known as Polyoxymethylene (POM) is a thermoplastic polymer manufactured by the polymerization of formaldehyde. It is a highly crystalline thermoplastic, charactererised by high tensile strength, stiffness, low coefficient of friction and excellent dimensional stability.

This polymer has high mechanical strength, stiffness, hardness and creep resistance, and is resistant against thermal-oxidative degradation.

Polyacetal rods offer a unique combination of properties not available with metals or other plastics.

Characteristics of Polyacetal rods are:

• Fatigue endurance unmatched by other plastics
• High tensile strength, stiffness and impact strength
• Excellent resistance to moisture, gasoline, lubricants, solvents and many other neutral chemicals
• Excellent dimensional stability
• Resilience and Creep resistance
• Natural Lubricity
• Wide end use temperature range

 

Applications: Used for Gears, Bushes, Sprockets, Pulleys, Conveyor Chains, Rollers, Washers, Seals, Engineering Components for Appliance, Electronic, Automotive, Textile machinery etc.

Standard Sizes:

• Round: 6mm to 250mm dia (Natural and Black)
• Square: 1" x 1" to 3" x 3"

 

Particulars Value:

• Density: 1.41 - 1.42 g/cm³
• Tensile strength at break: 65 MPa
• Elongation at break: 50%
• Torsional Modulus: 2600 MPa
• Volume Resistivity: 1015 ohm cm
• Surface Resistivity: 2 x 1014 ohms
• Dielectric Strength (Short time 2,3 mm): 32 MV/m

 

Coefficient of friction:

• Static: 0.20
• Dynamic: 0.35
• Hardness: 85^o on D Scale
• Water absorption (24 hrs. immersion): 0.32%

 

Maximum usage temperature:

• Short term ( Several Hours): 130 - 135 ^oC
• Long term (Months to Years): 80^o