| 摘要 |
The invention relates to the field of mechanical engineering and, more specifically, to bearing units in which roller bearings are used, in particular in planetary reduction gears, planetary gearboxes and planetary centrifugal grinders in which strong artificial fields of attraction are applied. The bearing device includes a body (4) in which is mounted a hollow shaft (1) with at least two roller bearings provided thereon at a given interval, said roller bearings including spacers (6), outer (3) and inner (2) rings and rolling bodies (5). The bearing (7) of the spacers (6) is made in the form of a hollow tube and is arranged inside the shaft (1) coaxially thereto and to a cylindrical rod (8) secured to the body (4) and provided with channels (9) for feeding oil. The technical result is the increased reliability and wear-resistance of the bearing unit, an increased operating speed and an extended service life. |
