Home
Precision Ball
Plastic Ball

PRECISION BALL

Plastic Ball

GradeDiameter ToleranceRoundness ToleranceDiameter ToleranceRoundness Tolerance
Unitinchinchmmmm
0+/- 0.00050.0005+/- 0.01270.0063
1+/- 0.0010.0005+/- 0.02540.0127
2+/- 0.0020.001+/- 0.0500.025
3+/- 0.0050.005+/- 0.1270.127
4+/- 0.015N/A+/- 0.381N/A

MATERIAL AND CHARACTERISTICS

ItemPOMPA66PPDelrin AF
MaterialPolyacetalNylon 66Polypropylence20% Teflon+80% Delrin
Density(g/cc)1.421.140.911.50
Hardness(Rockwell R scale)12011090115
Wear resistant(kgf/cm²)0.370.18385~5600.19
Wear Absorption(%)0.22~0.258.40.030.2
Heat Resistance (°C)160~170180~230120340
Resistance to weak acid
Resistance to strong acid
Resistance to weak alkali
Resistance to strong alkali
Resistance to organic solution
FeatureHigh strength and
stiffness, enhanced
dimensional stability,
and is easy to machine.Excellent wear
resistance, good
tensile strength;
high durability.Light weight, good dielectric;
good tensile strength
Colors easily,
Matte surface finish.Good wear/heat
resistance;
good corrosion resistance
Dark brown color.

poor fair good excellent