K represents the bearing rolling elements and cage assembly and so on.

Tapered roller bearing type code is 30000 [1], tapered roller Bearing test machine are separable bearings. Under normal circumstances, especially in GB/T307.1-94 "Rolling bearings tolerance" are involved in a range of sizes within the tapered roller bearing outer ring and inner components can be interchanged between one hundred percent use.
The angle of the outer ring and the outer raceway diameter size has been standardized with the same size and shape provides. Not allowed to change in design and manufacturing. To cause the tapered roller bearing outer ring and inner components available in the world between interchangeable.
Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. And angular contact ball bearings, bearing capacity, low speed limits. Tapered roller bearings can withstand axial load in one direction, the shaft or housing to limit axial displacement in one direction.Bearing Prefix used to indicate the bearing subassembly with letters. If L is separable bearings with separable rings; K represents the bearing rolling elements and cage assembly and so on.
The practical application of the rolling bearing type is many, the corresponding bearing code is more complex. Described above code is the most basic bearing code, the most commonly used part, familiar with this part of the code, you can choose to identify and investigate common bearings. About rolling code method can be found in the detailed GBT272-93.
Keywords for the information: bearing type, bearing type, bearing, angular contact bearings, spherical bearings, linear motion bearings, ball bearings, deep groove ball bearings, thrust ball bearings, roller bearings, cylindrical roller bearings, tapered roller bearings,