Sealed Zirconium Oxide Deep Groove Ceramic Ball Bearing: 6308-ZO2RS

Sealed Zirconium Oxide Deep Groove Ceramic Ball Bearing: 6308-ZO2RS

Deep Groove, Single Row, Ceramic, Sealed ZrO2 Ball Bearing
$363.33
This product has a minimum quantity of 3
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Specifications:
Attribute nameAttribute value
MaterialZrO2
SealsSeals
Shaft Size40mm
D (mm)90
B (mm)23
d1 (mm)56.1
D2 (mm)77.7
C (lb)2745
C0 (lb)1619
Nmax (RPM)5400
Weight(lbs)1.03
Code101921
PackageQTY1
UOMEA
Bore (mm)40
C (kN)12.21
C0 (kN)7.2
Ra (mm)1.5
Da (mm)81
damin (mm)49
kr30
ka0.5
fo13
r (mm)1.5
Clearance0.0005"
Tmax (F)482
Tmin (F)-94
DutyCeramic
Construction482F Seals Ceramic
SeriesZrO2
Sealed units are protected from liquids, vapors, and fine dust, have excellent grease retention but have increased friction compared to shielded and open bearings. Sealed units are protected from liquids, vapors, and fine dust, have excellent grease retention but have increased friction compared to shielded and open bearings. Zirconia offers high strength, wear resistance, and flexibility. It has a superior surface hardness, the highest level of impact toughness for a bearing grade ceramic, corrosion resistance, elastic modulus and thermal expansion similar to bearing steel, and good high-temperature performance. It has low thermal conductivity, is electrically non-conductive and non-magnetizing, making it a suitable material to replace metals in many applications where isolation is essential. One notable weakness is high-temperature steam will degrade Zirconia.