Kolos SK 6 is a popular Soviet grain harvester manufactured by the Taganrog Combine Plant. The technique looks very impressive and resembles a huge ship with 2 large bunkers placed on the sides.
The Kolos SK 6 harvester was actively used in agriculture. The technique confidently collected grain crops, the threshing process of which caused difficulties for most combines of that time. The Kolos SK 6 models raised the ears and cut them at the root, after which the threshing began. The resulting mass entered a bunker with 2 storage sections, where it was stored until it was loaded into a car.
| Bearing installation location | Bearing number | Size | Bearing type | Quantity |
| Drum, drive shaft | 11312 К | 60x140x50 | Ball radial spherical double row with adapter sleeve | 4 |
| Undercarriage variator pulley block | 308 | 40×90×23 | Single-row radial ball | 2 |
| Lower header variator shaft | 8109 | 45x65x14 | Single thrust ball | 2 |
| Driving crankshaft, driven crankshaft | 380507 | Single-row radial ball | 10 | |
| Header counter drive shaft, header knife rocker, tension pulley, unloading auger drive, bunker auger | 180206 | 30x72x35 | Single-row radial ball bearing with double-sided sealing | 6 |
| Header crank shaft | 180508 К | 40x80x23 | Single-row radial ball bearing with double-sided sealing | 2 |
| Lower conveyor shaft | 580204 К | 20x47x14 | Single-row radial ball bearing with two seals with a spherical outer surface of the outer ring | 2 |
| Rear Suspension Rifle | Ш20 | 20x35x16 | Articulated without holes and lubrication grooves | 4 |
| Cardan drive, hopper auger turn | 704902 К4С10 | 15,235x28x20 | Single row radial needle roller without inner ring and cage | 12 |
| Transmission | 306 | 30×72×19 | Single-row radial ball | 3 |
| Transmission | 309 К | 45×100×25 | Single-row radial ball | 1 |
| Transmission | 50206 | 30x62x16 | Single row radial ball bearing with a groove on the outer ring | 1 |
| Transmission | 50208 | 40x80x18 | Single row radial ball bearing with a groove on the outer ring | 1 |
| Transmission | 50408 | 40x110x27 | Single row radial ball bearing with a groove on the outer ring | 1 |
| Transmission | 60309 К | 45×100×25 | Single row radial ball bearing with one shielding washer | 1 |
| Transmission | 180707 С17 | 35x80x26 | Single-row radial ball bearing with double-sided sealing | 2 |
| Tachometer drive housing | 180501 | 12x32x14 | Single-row radial ball bearing with double-sided sealing | 1 |
| Drum speed control mechanism | 27308 | 40х90х25,25 | Single row tapered roller with large taper angle | 4 |
| Drive wheel axle | 215 | 75×130×25 | Single-row radial ball | 2 |
| Steering axle | 7606 КУ | 30x72x29 | Single row tapered roller | 2 |
| Steering axle | 7609 КУ | 45x100x38,25 | Single row tapered roller | 2 |
| Clutch engagement assembly | 211 | 55×100×21 | Single-row radial ball | 1 |
| Engine clutch | 413 | 65×160×37 | Single-row radial ball | 1 |
| Unloading auger friction clutch | 845806 | 30x56x76 | Single row radial roller | 1 |
| Dispenser pump | 8104 | 20x35x10 | Single thrust ball | 1 |
| Dispenser pump | 942/20 | 20x26x20 | Needle roller with outer ring with through hole without cage | 1 |
| Idler pulleys, tension sprockets, small ear auger, left grain elevator, grain elevators, right grain elevator, grain auger, fan speed variator | 180204 | 20x47x14 | Single-row radial ball bearing with double-sided sealing | 24 |
| Hydraulic pump drive | 60106 | 30x55x13 | Single row radial ball bearing with one shielding washer | 1 |
| Hydraulic pump drive | 60208 | 40x80x18 | Single row radial ball bearing with one shielding washer | 1 |
| Drive to chassis | 1311 | 55x120x29 | Ball radial spherical double row with a cylindrical bore of the inner ring | 1 |
| Receiving bitter, unloading auger drive, rebound bitter, rear counter drive, driving crankshaft, driven crankshaft, fan, oscillating shaft | 1680206 КС17 | 30x72x35 | Single-row radial ball bearing with two shields with a wide inner ring with a spherical outer surface of the outer ring on an adapter sleeve | 15 |
| Onboard reducer | 7516 | 80x140x33 | Single row tapered roller | 2 |
| Onboard reducer | 7517 К | 85х150х38,5 | Single row tapered roller | 2 |
| Onboard reducer | 982807 | 35x77x38 | Roller double row | 6 |
| Steering | 636905 | 23,5×36,5×14,8 | Angular contact ball single row stamped | 1 |
| Header connecting rod, header counter drive shaft, grain elevator gearbox, grain elevator gearbox, right and left | 180205 К | 25x52x15 | Single-row radial ball bearing with double-sided sealing | 14 |
| Oscillating shaft connecting rods | 1580209 К | 45x85x21 | Single-row radial ball bearing with two seals with a spherical outer surface of the outer ring | 2 |
| Hopper auger | 580306 К | 30x72x19 | Single-row radial ball bearing with two seals with a spherical outer surface of the outer ring | 1 |
| Unloading auger | 580306 К | 30x72x19 | Single-row radial ball bearing with two seals with a spherical outer surface of the outer ring | 1 |
| Header auger, header feeder chamber upper shaft, rear counter drive, rebound bitter | 1680207 С17 | 35x80x36 | Single-row radial ball bearing with two shields with a wide inner ring with a spherical outer surface of the outer ring on an adapter sleeve | 5 |
| Header auger, small ear auger, grain auger counter drive, ear auger | 1680205 С17 | 25x62x31 | Single-row radial ball bearing with two shields with a wide inner ring with a spherical outer surface of the outer ring on an adapter sleeve | 7 |