Is Peek a Good Bearing Material?
Yes ,PEEK material is good material for bearings .
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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.
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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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