Manufacturer designation:

330757С / QCL7CVA606 SKF

Design:

The bearing consists of two rings (inner and outer) and rolling elements (tapered rollers) which are connected by a cage. The inner ring with a cage and rolling elements is a CONE. The outer ring is a CUP.
  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.

Features:

Q: Optimized internal geometry and surface finish
CL7C - Special version for pinion bearing construction
VA606 - Bearing rings with corrugated raceways and special heat treatment;