ROC Carbon Company

ROC Carbon offers a portfolio of PEEK thermoplastic grades that provide good chemical resistance and excellent physical properties for applications including bearings, seals and other parts. Material grades are available as finished parts per your specifications or as raw material blanks for machining.

General Properties

Good chemical resistance to alkalis, aromatic hydrocarbons, halogenated hydrocarbons, alcohols, greases, and oils
Self-lubricating
Thermal stability
Contamination resistance
Mechanical strength

Raw Material Availability

Solid cylinders up to 20 inch diameter

Technical Support

Technical support is available to help select the proper grade for your application, and engineering services can be provided for designing the finished product.

Grades

Grade	R-700	R-710	R-720	R-721	R-730	R-740
Filler	None	15% PTFE	15% glass	30% glass	30% carbon	30% carbon/PTFE
Density, g/cc	1.32	1.40	1.39	1.49	1.40	1.44
Hardness, HRR	126	124•	124	124	124	124
Tensile strength, psi	14,500	11,000	17,800	24,500	32,700	19,000
Shear strength, psi	7,700	N/A	N/A	14,000	14,000	N/A
Flexural strength, psi	24,700	19,000	26,000	33,500	51,000	30,450
Temperature limit, °F	500	500	500	500	500	500
Coefficient of friction	0.34	0.11	N/A	N/A	0.28	0.11

Values given are typical properties, not guaranteed minimum values.
* Estimated value (actual Shore 88)
**Friction coefficients are measured under specific test conditions. Actual values will vary with different operating parameters.