Ball bearing bearing

angular-contactsingle-rowsteel

Single-row angular contact ball bearings for high rotation frequency and high accuracy of seating differ from normal angular contact ball bearings by inner design of bearing rings, by value of contact angle between ball and normal raceways of rings, by workmanship of cage and by high precise tolerance class of running. The bearings are non-separable and their suitable seating arrangement assures required firmness and accuracy of housing. Bearings with ceramic balls are manufactured for extreme high speed with requirements for low friction and low heat generation in bearing, which gives less lubrication demands and higher lifetime of seating. KINEX BEARINGS, a.s. delivers the single-row ball bearings with contact angles of α = 10°, α = 12°, α = 15°, α = 25° and α = 26°. The bearings have special textile cage guided by inner ring (TB) or by outer ring (TA). Part of assortment has the massive brass cage guided by inner ring MB. Bearings with contact angle of α = 10° (designation B72.. CBTB and B72.. CBTA) have been designed for shaft support in grinding electro-spindles. The bearings are manufactured in tolerance class P4 according to the STN ISO 492, or in tightened tolerance class P4A (bearings of the P4A tolerance had been formerly delivered with additional TPF 1148 designation). The bearings with contact angle of α = 12° (designation B70... CATB and B72.. CATB) and those with α = 26° (designation B70... AATB and B72.. AATB) have been designed for rotation seating of spindles and headstocks of tool machines and similar high-speed machines that require high accuracy of seating.