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Double row angular contact ball bearings

 

Double-row Angular Contact Ball Bearings
The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).
Capacities of double row ball bearing is less than single row since few balls can be inserted per row.
This bearing type can sustain radial, moment and bi-directional axial loads.
Design
These type of bearings are made in two contact angle levels as shown in Table. They are selected according to sustained axial and moment load.
Cages are made of pressed steel.
Some sizes of Double-row Angular Contact Ball Bearing are available with contact seals (2NS) or shields (ZZ).
Double-row Angular Contact Ball Bearing Contact Angles and Symbols
Application
Blower
High speed vacuum pump
Super charger
Motor cycle transmission