Deep Groove Ball Bearings

Com­pared with other types of rolling bear­ings, deep groove ball bear­ings op­er­ate with min­i­mal fric­tion loss­es. The align­ment of seats for the­se bear­ings shall be kept with­in such lim­its that the misalign­ment of the outer rings rel­a­tive­ly to the in­ner rings was slight, even with the in­creased bear­ing clear­ance. The bear­ings shall be mount­ed on hard dou­ble-seat shafts which de­flec­tion un­der the in­flu­ence of the ex­ter­nal forces does not cause ex­ces­sive misalign­ment of the shaft ax­is rel­a­tive­ly to the mount­ing bore ax­is.

Deep groove ball bear­ings with pro­tec­tive met­al shields or con­tact and con­tact­less seals are wide­ly dis­tribut­ed. They are used in the cas­es when due to the lim­it­ed size or main­te­nance in­con­ve­niences, mount­ing of spe­cial seal­ing de­vices to pro­tect the bear­ing from dirt or to keep the lu­bri­ca­tion in is un­de­sir­able.

Deep groove ball bear­ings are usu­al­ly fit­ted with with the pressed steel cages. The bear­ings with more durable and strong cages made of glass fi­bre re­in­forced polyamide, which provide high­er speed, low noise, less weight are pro­duced re­cent­ly. Bear­ings with the par­tic­u­lar re­quire­ments, op­er­at­ing in spe­cial con­di­tions, as well as large-size bear­ings, are pro­duced with brass, alu­minum al­loys and other ma­te­ri­als cages.