OEM No/Model: 71932C/1036932
BRS Einreihige SchräGkugellager
BRS angular contact ball bearings have been designed to meet the increasingly demanding requirements of original equipment manufacturers. These bearings have a contact angle so that they can sustain significant axial loads in one direction together with radial loads. Furthermore, since an axial component is generated when a radial load is applied, these bearings are generally used in pairs, triplex sets, quadruplex sets, or multiplex sets.
Preload and Rigidity
Regarding the rigidity of machine tool spindles, bearings can be considered as springs. When an axial load is applied to the spindle, axial displacement is determined by the axial rigidity of the fixed end bearings. Cylindrical roller bearings are generally used to support radial loads while angular contact ball bearings are used to sustain axial loads.The bigger the contact angle of the angular contact ball bearings, the higher the axial rigidity. Bearings of the same bore size, which have more rolling elements (diameter series 0 or 9; or BNR10 or BNR19 series), have higher rigidity, even though the diameter or the rolling elements is smaller.
Normally, preload is applied to bearings in order to increase rigidity of machine tool spindles. But excessively high preload will result in flaking and possible seizure. Many users increase rigidity by using a combination of two or more angular contact ball bearings.
Model
71930C
71930AC
7030C
7030AC
7030B
7230AC
B7230AC
7230B
7330AC
7330B
71932C
71932AC
7032C
7032AC
B7032AC
7232C
7232AC
7232B
7332B
71934C
71934AC
7034C
7034AC
7034B
7234C
7234AC
B7234AC
7234B
7334B
71936C
71936AC
7036C
7036AC
7036B
7236C
7236AC
7236B
7336B
71938C
71938AC
7038C
7038AC
7038B
7238B
7338B
71940C
71940AC
7040C
7040AC
7240C
7240AC
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