Single row ball bearings 306 and modifications are used in various sectors of the economy. But for the most part - as a spare part for trucks and cars, agricultural, road construction and other equipment. The bearing with a groove for the retaining ring 50306 is installed in various units of VAZ passenger cars - “classics”: gearbox, primary and secondary shaft and Niva and Chevrolet Niva (front axle internal hinge housing, gearbox), minibuses and Gazelle light trucks (transfer case input shaft), YerAZ minibuses (gearboxes), MTZ tractors (power take-off shaft), almost all models of light trucks, minibuses and UAZ cars (intermediate gearbox shaft and transfer case). Sealed bearings 180306 are installed on the rear axle of the VAZ "classic" (2101-2107) and the Moskvich l / a, the drive of the unloading device of the Don combines, the generator-exciter of the BelAZ dump trucks. Open bearings 306 are installed on KamAZ trucks (power take-off gear axle), GAZ (secondary and intermediate transfer case shafts), BelAZ (power take-off), MAZ (generator and engine), engines and electric motors of tram cars. They are widely used in DT and MTZ tractors, Don and Niva combines, forklifts and many other products of domestic engineering.