Bearing Grade PPS Designed as a Cost-Effective Alternative to PEEK Bearing Grades

Internally lubricated PPS bearing grade engineered for low friction, wear resistance, and dimensional stability in demanding industrial applications where the extreme temperature capability of PEEK is not required.

Lower-cost alternative to PEEK bearing grades

Low friction and wear resistance

Reliable sliding performance

Excellent chemical resistance

Improved durability compared to standard PPS bearing grades

Benefits

What Bearing Grade PPS Offers

Exceptional characteristics that ensure Bearing Grade PPS is perfect for sliding, rotating, and dynamically loaded parts.

Excellent Wear and Friction Performance

PTFE, carbon fiber, and graphite fillers provide stable sliding performance and reduced friction.

Improved Durability and Machining Behavior

Designed to reduce brittleness and improve resistance to cracking and chipping compared to traditional PPS bearing grades.

Cost-Effective Alternative to PEEK Bearing Grades

Suitable for many industrial wear applications where PEEK-level PV capability is unnecessary.

Dimensional Stability

Maintains tolerances under thermal and mechanical loading.

Chemical Resistance

Performs reliably in chemically aggressive industrial environments.

Applications

Common components made from Bearing Grade PPS

Machined components that excel in applications requiring low friction and superior wear resistance.

Dynamic Industrial Components

Moving or load-bearing parts designed for repeated contact, wear resistance, and stable performance.

Sliding Wear Surfaces

Low-friction surfaces used in moving assemblies where reduced wear and smooth motion are important.

Valve Components

Machined parts for valves that need chemical resistance, dimensional stability, and reliable sliding performance.

Seals and Backup Rings

Durable sealing support components used in systems exposed to friction, pressure, chemicals, and heat.

Wear Rings

Machined rings designed for sliding contact, wear control, and dimensional stability in industrial systems.

Bushings and Sleeve Bearings

Low-friction cylindrical components used to support rotating shafts and reduce wear in moving assemblies.

Technical data

Bearing Grade PPS Technical Properties

Mechanical Properties

Property	Test	PPS BG 10/10/10	Unit
Tensile Strength	ASTM D638	16,000	PSI
Tensile Modulus	ASTM D638	950	KSI
Elongation @ Break	ASTM D638	2.0	%
Flexural Strength	ASTM D790	24,000	PSI
Flexural Modulus	ASTM D790	900	KSI
Compressive Strength	ASTM D695	20,000	PSI
Izod Impact (notched)	ASTM D256	1.0	ft-lb/in
Hardness Rockwell	ASTM D785	M95/R120	—

Thermal Properties

Property	Test	PPS BG 10/10/10	Unit
HDT @ 264 psi	ASTM D648	500	°F
Melting Point	—	540–550	°F
CLTE	ASTM E831	1.6	in/in/°F × 10⁻⁵
Thermal Conductivity	ASTM C177	3.8	BTU·in/hr·ft²·°F

Electrical Properties

Property	Test	PPS BG 10/10/10	Unit
Dielectric Strength	ASTM D149	120	V/mil
Dielectric Constant	ASTM D150	5.2	—
Dissipation Factor	ASTM D150	0.015	—
Surface Resistivity	ASTM D257	10⁴–10⁶	Ω/sq
Volume Resistivity	ASTM D257	10⁴–10⁶	Ω·cm

Wear Properties

Property	Test	PPS BG 10/10/10	Unit
Coefficient of Friction (Dynamic)	ASTM D3702	0.18	—
Wear Rate (K-factor)	ASTM D3702	18 ×10⁻¹⁰	in³·min/ft·lb·hr

Miscellaneous Properties

Property	Test	PPS BG 10/10/10	Unit
Specific Gravity	ASTM D792	1.47	—
Water Absorption (24hr)	ASTM D570	0.02	%
Flammability	UL94	V-0	—

Stock shapes

Bearing Grade PPS Rods, Plates & Tubular Bars

Extruded stock shapes are supplied in standard diameters and thicknesses, with custom dimensions available for specific applications.

Rods

Extruded PPS Bearing Grade rods are available from 1/2" to 10" diameter.

Plates

PPS Bearing Grade plates are supplied from 3/8" to 4" thickness.

Tubular Bars

Tubular bars are available for bushings and cylindrical wear components requiring reduced machining waste and lower finished-part cost.

Available Colors

Black

Size Chart

Available Sizes for PPS Bearing Grade

Form	Dimension	Sizes	Standard length
Rod	Diameter	0.500", 0.750", 0.875", 1.000", 1.250", 1.375", 1.500", 1.625", 1.750", 1.875", 2.000", 2.225", 2.500", 2.750", 3.000", 3.500", 4.000", 4.500", 5.000", 5.500", 6.000"	96" for diameters below 4.000" 48" for diameters 4.000" and above
Plate	Thickness	0.500", 0.625", 0.750", 0.875", 1.000", 1.250", 1.375", 1.500", 1.625", 1.750", 1.875", 2.000", 2.225", 2.500", 2.750", 3.000", 3.500", 4.000"	24" × 48" for thicknesses below 3.000" 12" × 48" for thicknesses 3.000" and above
Tubular bar	OD / wall thickness	OD: 4"–8" Wall thickness: 1", 2"	48" custom on request

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Grade comparison

How Bearing Grade PPS compares to other PPS grades

Quick reference guide to help you choose the right material.

Grade	Best for	Stiffness	Chemical resistance	Notes
PPS IM (unfilled)	Chemically aggressive environments	Moderate	Excellent	Best chemical resistance and easier machining
PPS GF30	Structural parts needing balanced stiffness and durability	High	Excellent	30% glass fiber reinforced for dimensional stability and load-bearing performance
PPS CF30	Lightweight structural components	Very high	Excellent	30% carbon fiber reinforced with high stiffness-to-weight performance
Bearing Grade PPS	Bushings, bearings, and sliding wear parts	High	Excellent	PTFE, carbon fiber, and graphite filled for low friction and wear resistance
PPS GF40	High-load structural components	Very high	Excellent	Increased stiffness and reduced creep

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Frequently Asked Questions

How does PPS Bearing Grade compare to PEEK Bearing Grade?

PPS Bearing Grade provides low friction and wear resistance at significantly lower cost for applications not requiring the highest PV capability or continuous operating temperature of PEEK.

Is PPS Bearing Grade electrically insulating?

No. Carbon and graphite fillers may reduce electrical resistivity and provide static dissipative behavior.

Why choose tubular bars for bearing applications?

Tubular bars reduce machining waste, lower raw material usage, and reduce finished-part cost for bushings and cylindrical wear components.