Hybrid ceramic single row deep groove ball bearings have rings made of bearing steel and rolling elements made of bearing grade silicon nitride, which make the bearings electrically insulating. Deep groove ball bearings are the most widely used bearing type, especially in electric motors. The ceramic rolling elements not only provide protection from electric current damage but also, when compared to same-sized bearings with steel rolling elements, provide enhanced bearing performance, extended bearing service life, higher speed capability, high wear-resistance, high bearing stiffness, reduced risk of smearing and false brinelling, and less sensitivity to temperature gradients. These characteristics make them suitable for use in difficult conditions and contaminated environments.
Bore diameter | 280 mm |
Outside diameter | 350 mm |
Width | 33 mm |
Basic dynamic load rating | 138 kN |
Basic static load rating | 200 kN |
Reference speed | 3 800 r/min |
Limiting speed | 2 400 r/min |
Filling slots | Without |
Number of rows | 1 |
Locating feature, bearing outer ring | None |
Bore type | Cylindrical |
Cage | Sheet metal |
Matched arrangement | No |
Radial internal clearance | C3 |
Material, bearing | Hybrid (ceramic balls) |
Coating | Without |
Sealing | Without |
Lubricant | None |
Relubrication feature | Without |
Product net weight | 5.71 kg |
eClass code | 23-05-08-01 |
UNSPSC code | 31171504 |
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