Types of full complement cylindrical rollers and two types of commonly used cylindrical roller bearings Full complement cylindrical roller bearings are designed to withstand heavy loads. Under the same width, this kind of bearing has extremely high bearing capacity compared with the traditional bearing with cage, and the radial section is small, which can save space, but the speed is relatively low. In order to make the bearing work normally, in the continuous operation environment, the bearing must suffer a certain very small load, that is, C/P<25. Otherwise, the wear will be aggravated due to insufficient lubrication and high-speed operation. All multi-row cylindrical roller bearings have a lubrication groove and lubrication holes in the outer ring. Cylindrical rollers and raceways are linear contact bearings. The load capacity is large, and it is mainly subjected to radial load. The friction between the rotating body and the rib of the ferrule is small, and it is suitable for high-speed torsion. According to whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable layout of the inner ring and the outer ring. Cylindrical roller bearings with no ribs on the inner or outer ring, the inner and outer rings can be relatively moved in the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Commonly used steel stamping cages, or copper alloy turning solid cages. But there are also applications of polyamide forming cages. Type: Cylindrical roller bearings are separable bearings, which are very convenient to install and remove. Cylindrical roller bearings can withstand large radial loads and are suitable for applications in high-speed operation. This type of bearing allows the angular error (skewness) between the axis of the inner ring and the axis of the outer ring to be very small, only 2' to 4'. Therefore, the machining accuracy of the shaft and the bearing seat is relatively high, otherwise, it is easy to have uneven load or intensive stress at the contact part of the raceway. However, after modifying the contact busbar of the rollers or raceways, the occurrence of stress-intensive environments can be reduced. Cylindrical roller bearings can be divided into single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rotating bodies installed. Differently arranged bearings are also reflected in the positional design of the rib. Among them, the commonly used cylindrical roller bearings have the following forms: Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are separable bearings, which are easy to install and disassemble. Both rings can be tightly combined and modified rollers and rollers. Contact lines between tracks can reduce stress concentration. Double-row cylindrical roller bearings: Double-row cylindrical roller bearings are movable bearings, and their separability makes installation and disassembly very convenient. Both ferrules can use tight fittings. Double row cylindrical roller bearings hardly tolerate skew angles.
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