Designation:

30309A (DIN 720);
7309 (GOST 333-79).

Design:

Tapered roller bearing consists of two rings (internal and external) and rolling elements (tapered rollers), connected with a cage - separator.

Features:

The design of tapered roller bearings suites for the perception of combined (radial and axial) loads. Tapered roller bearings have a split construction: the inner ring with the rollers and separator create the unit, that can be mounted separately from the outer ring. Tapered roller bearings are inches.