Single-row Cylindrical Roller Bearings
Single row cylindrical roller bearings are available in many designs, series and sizes. The major design differences between the bearings presented in this section are in:
· The cage design and material.
· The configuration of the inner and outer ring flanges.
Double-row Cylindrical Roller Bearings
Double row cylindrical roller bearings are divided into bearings with cylindrical bore and tapered bore (add K behind bearing type). This type of roller bearings have compact structure, good rigidity, heavy load carrying capacity, and little distortion under loads. Because of their second row of rollers, double row cylindrical roller bearings are suitable for heavy radial loads. Double row cylindrical roller bearings are applicable for the machine tool spindle. Tapered inner bore could fine adjust clearance, simplify positioning fixture and be convenient to mount and dismount.
Four-row Cylindrical Roller Bearings
Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders and roller presses. Because they are normally mounted with an interference fit on the roll neck, four-row cylindrical roller bearings are well suited for rolling mill applications where the rolling speed is high.
