2014年12月12日星期五

Angular contact ball bearing

* Angular contact ball bearings have a contact angle between rings and balls, standard contact angle of 15 °, 30 ° and 40 °
* The larger the contact angle the greater the axial load capacity * smaller the contact angle is more conducive to high-speed rotation * single row bearings can bear radial load and axial load combinations * DB, DF combination and double row angular contact ball bearing can withstand radial to load and axial load * DT combination applies larger axial load, less than the rated load bearing single occasion * high speed ball bearing with ACH small diameter ball a few more, mostly for machine tool spindle * angular contact ball bearings for high-speed and high-precision rotation * on the back of a combination of the two structures for single row angular contact ball bearing inner and outer rings, can bear radial load and axial load bearing * No filling slots have sealed the main applicable Cage:
* Pressed steel cage (separate bowl ...; S-shaped, crown-shaped double row ...)
* Copper alloy or phenolic resin cutting cage, synthetic resin forming cage main purposes:
* Single row: spindle, high frequency motors, gas turbines, centrifuges, small car front wheel, the differential pinion shaft * double row: pump, blower, air compressor, various types of transmission, fuel injection pump, Printing Machinery * Four-point contact ball bearings can bear radial load and axial load * single bearings can be replaced, or a combination of the back of a positive combination of angular contact ball bearings * applies to bear pure axial load or axial load larger synthetic ingredients * loads in any direction when such bearings can withstand axial load can form one of the contact angle (α), so the rings and balls always * at any point of contact with a contact line duplicitous mainly used to maintain frame:
Cutting copper alloy cage main purposes:
Aircraft jet engines, gas turbines.

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