Cylindrical roller bearing is made from bearing steel, it mainly consists of outer ring, inner ring, roller element, and cage. RN206EM is without outer ring, the cage is made from brass, the outer diameter is 55.5mm, inner diameter is 30mm, and the height is 16mm.
The rolling element is the centripetal rolling bearing of a cylindrical roller. The internal structure of cylindrical roller bearings adopts rollers arranged in parallel, and there is a spacer or isolation block between the rollers, which can prevent the tilt of the rollers or the friction between the rollers, effectively preventing the increase of rotating torque.
The cylindrical roller and the raceway are linear contact bearings. Large load capacity, mainly bear radial load. The friction between the rolling element and the rim of the ring is small, which is suitable for high-speed rotation. According to the flange of the ring, it can be divided into NU, NJ, NUP, N, NF and other single-row cylindrical roller bearings, and NNU, NN and other double-row cylindrical roller bearings. The bearing is a structure with separable inner ring and outer ring.
Cylindrical roller bearings with inner or outer rings without rims, the inner and outer rings can be axially moved relative to each other, so they can be used as free-end bearings. One side of the inner ring and the outer ring has a double rib, and the other side of the ring has a cylindrical roller bearing with a single rib, which can withstand a certain degree of axial load in one direction. Generally use steel plate stamping cages, or copper alloy carted solid cages. But some also use polyamide forming cages.
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