CONNECTING UNIT FOR CONNECTING BALL BEARING PART Russian patent published in 2018 - IPC F16B2/00 

FIELD: machine building.

SUBSTANCE: group of inventions refers to engineering, in particular, to a connecting unit for connecting two and three ball bearing part. Connecting unit for connecting two ball bearing part using two fastening elements is characterized by the following features: fastening elements are made in the form of a screw comprising a head and a rod; in each ball bearing a dull radial threaded hole is provided for accommodating the screw rod. To connect each ball bearing in a part, figurine-shaped through holes of variable diameter are made for the placement of screws, wherein said through-holes include a coupling portion of the ball bearing part, a cylindrical portion for accommodating the screw shaft, and a portion for accommodating the head of the fixing screw. Each composite hole in the component is placed coaxially with the hole in the corresponding ball bearing. Rod of each fastening screw is disposed in a corresponding cylindrical portion of the through-hole of the part with a gap providing an angular displacement of the part relative to the corresponding ball bearing, and is fixed by thread in a blind hole of the corresponding ball bearing. Under each head of the screw, an elastic compensator and a conical washer are installed, supported by their internal conical surface on a spherical surface formed in the area to accommodate the head of the corresponding fixing screw. Each center of a convex corresponding spherical surface coincides with the center of the corresponding ball bearing.

EFFECT: possibility of moving the ball bearings relative to the workpiece; as well as the possibility of constant positioning of the part relative to the ball bearings when the part is expanded or compressed, for example, due to temperature changes.

14 cl, 26 dwg