The characteristics and applications of cylindrical roller bearings:
Cylindrical roller bearings are a separable type of bearing, with linear contact between the inner and outer rings and the rollers, low friction coefficient, and high limit speed. Bearings are easy to install and disassemble, and can generally only withstand radial loads. Only single row cylindrical roller bearings with inner and outer retaining edges can withstand small quantitative axial loads or large clearance axial loads; Bearings with single gear edges can only withstand axial loads in one direction; Cylindrical roller bearings without inner or outer rings are used in components with limited radial dimensions. The surface of the journal or housing hole serves as the rolling surface, and its hardness, machining accuracy, and surface quality should be similar to the raceway of the ring.
According to the different number of rows of rolling elements used in bearings, cylindrical roller bearings can be divided into single row, double row, and multi row cylindrical roller bearings. The most commonly used one is the single row cylindrical roller bearing with a cage. In addition, there are cylindrical roller bearings with other structures such as single or double row fully loaded rollers.
Single row cylindrical roller bearings are classified into N type, NU type, NJ type, NF type, and NUP type according to the different retaining edges of the ring. Cylindrical roller bearings have a large radial load capacity and can also withstand certain unidirectional or bidirectional axial loads based on the structure of the retaining ring.
NN and NNU double row cylindrical roller bearings have a compact structure, strong rigidity, large load-bearing capacity, and small deformation after being loaded. They are mostly used for supporting machine tool spindles.
FC, FCD, and FCDP four row cylindrical roller bearings can withstand large radial loads and are commonly used in heavy-duty machinery such as rolling mills.
Cylindrical roller bearings are mainly used for medium and large electric motors, generators, internal combustion engines, gas turbines, machine tool spindles, reduction devices, loading and unloading machinery, and various industrial machinery.
Cylindrical roller bearings are a separable type of bearing, with linear contact between the inner and outer rings and the rollers, low friction coefficient, and high limit speed. Bearings are easy to install and disassemble, and can generally only withstand radial loads. Only single row cylindrical roller bearings with inner and outer retaining edges can withstand small quantitative axial loads or large clearance axial loads; Bearings with single gear edges can only withstand axial loads in one direction; Cylindrical roller bearings without inner or outer rings are used in components with limited radial dimensions. The surface of the journal or housing hole serves as the rolling surface, and its hardness, machining accuracy, and surface quality should be similar to the raceway of the ring.
According to the different number of rows of rolling elements used in bearings, cylindrical roller bearings can be divided into single row, double row, and multi row cylindrical roller bearings. The most commonly used one is the single row cylindrical roller bearing with a cage. In addition, there are cylindrical roller bearings with other structures such as single or double row fully loaded rollers.
Single row cylindrical roller bearings are classified into N type, NU type, NJ type, NF type, and NUP type according to the different retaining edges of the ring. Cylindrical roller bearings have a large radial load capacity and can also withstand certain unidirectional or bidirectional axial loads based on the structure of the retaining ring.
NN and NNU double row cylindrical roller bearings have a compact structure, strong rigidity, large load-bearing capacity, and small deformation after being loaded. They are mostly used for supporting machine tool spindles.
FC, FCD, and FCDP four row cylindrical roller bearings can withstand large radial loads and are commonly used in heavy-duty machinery such as rolling mills.
Cylindrical roller bearings are mainly used for medium and large electric motors, generators, internal combustion engines, gas turbines, machine tool spindles, reduction devices, loading and unloading machinery, and various industrial machinery.
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