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Is Peek a Good Bearing Material?

Is Peek a Good Bearing Material?

  • 2021-10-03

Yes ,PEEK material is good material for bearings .

PEEK Bearings
PEEK Plastic Radial Ball Bearings

PEEK material have below features :

1. peek materials are corrosion resistant and resistant to aging.
2. PEEK material has high solubility resistance.
3. Peek materials have high temperature, high frequency and high voltage electrical properties.
4. PEEK material has strong flexibility and rigidity.
5. PEEK material is precise for size.
6. PEEK material is wear-resistant and has strong anti-corrosion performance.

PEEK Plastic Ball Bearings
PEEK bearings

Below here is features of each plastic for your reference ,you can choose material as you need :


Characteristic Values of Plastic Ball Bearing Material
Item UHMW PEEK PTFE Soda-lime Glass Alumina Ceramics
Specific Gravity 0.94 1.32 2.14~2.20 2.5 3.9
Tension Strength (kgf/cm2) 460 1000 210~350 600 -
Elongation (%) 400 20 200~400 - -
Compression Strength (kgf/cm2) - 1210 120 9000 25000
Compression Elasticity Modulus (kgf/cm2) 9170 42000 4200 - -
Bending Strength (kgf/cm2) 250 1730 - - -
Izod Impact Strength Test Does not break 20 15.8 - -
Hardness R Scale R Scale Durometer D Mohs Hardness Vickers Hardness
56 120 50~55 6.5 1800(kgf/mm2)
Deflection Temperature under Load (°C) 0.45MPa 80(0.45MPa) 155(1.82MPa) - - -
Thermal Linear Expansion Coefficient 1.7x10-4 5.0x10-5 12.4x10-5 - 7.8x10-6
Heat Resistance Temperature (°C) -100~80 -50~250 -40~260 -50~60 -50~1600

MKL BEARINGS can produce different type of PEEK bearings for you ,for more bearings just feel free to contact with us free .


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