Nylon 66 Balls

Nylon 66 Balls combine high stiffness, wear resistance, and low friction with excellent dimensional stability, making them highly effective in rolling and point-contact load applications. Their ability to withstand repeated mechanical stress without deformation supports use in precision bearings, check valves, and low-noise conveyor rollers. Industries such as aerospace, automotive, and medical equipment manufacturing value these balls for their lightweight durability and chemical resistance to oils, greases, and fuels. Specific uses include bearing races in motion control assemblies, pump check mechanisms, and rotary actuators in laboratory devices. In research, Nylon 66 balls are integral for tribological studies, contact fatigue testing, and prototyping of load-bearing rolling elements. The consistent sphericity, impact resilience, and operational reliability of this geometry make it indispensable where smooth motion and predictable wear characteristics are essential in industrial and experimental environments.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Ball/Sphere

Diameter	Standard	±5%
Diameter	Precision	See Item

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Poor
Acids - dilute	Poor
Alcohols	Good
Alkalis	Good-Fair
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Good

Mechanical Properties

Element	Value
Coefficient of friction	0.2-0.3
Hardness - Rockwell	M89
Poisson's ratio	0.41
Elongation at break( % )	40
Tensile modulus( GPa )	3.3
Izod impact strength( J m⁻¹ )	40-110
Abrasive resistance - ASTM D1044( mg/1000 cycles )	03-May
Tensile strength( MPa )	82

Electrical Properties

Element	Value
Dielectric constant @1MHz	3.4
Dissipation factor @ 1kHz	0.2
Dielectric strength( kV mm⁻¹ )	25
Surface resistivity( Ohm/sq )	10¹¹
Volume resistivity( Ohmcm )	10¹³

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Fair
Refractive index	1.53
Resistance to Ultra-violet	Poor
Limiting oxygen index( % )	23
Water absorption( % )	8.5
Water absorption - equilibrium( % )	8
Water absorption - over 24 hours( % )	2.3
Density( gcm⁻³ )	1.14

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	200
Heat-deflection temperature - 1.8MPa( C )	100
Lower working temperature( C )	-30
Upper working temperature( C )	80-180
Specific heat( J K⁻¹ kg⁻¹ )	1670
Thermal conductivity( W m⁻¹ K⁻¹ )	0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	90