- Product
Cylindrical Roller Bearings
Detailed description
Cylindrical Roller Bearings Roller cylindrical roller bearings to the heart. Cylindrical Roller Bearings The internal structure of the roller 90 ° perpendicular to each other cross (this is the name of the Crossed Roller Bearings), the interval between the rollers with a cage or spacer to prevent the roller tilt or roller Between the mutual inspection, effectively prevent the increase of rotational torque.
Cylindrical roller and raceway for the linear contact bearings. Load capacity, mainly bear radial load. Rolling body and ferrule rib friction, suitable for high-speed rotation. According to the ring with or without ribs, can be divided into NU, NJ, NUP, N, NF single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearings. The bearing is the inner ring, outer ring detachable structure.
Inner ring or outer ring without ribs cylindrical roller bearings, the inner ring and outer ring can be relative to the axial movement, it can be used as a free end bearings. One side of the inner ring and the outer ring with double ribs, the other side of the ring with a single rib roller bearings, can withstand a certain degree of axial load in one direction. The general use of steel stamping cage, or copper alloy car body cage. However, there are also some polyamide forming cages.
Bearing characteristics
1. Rollers and raceways for line contact or repair line contact, radial load capacity, suitable for heavy loads and impact loads.
2. Friction coefficient is small, suitable for high speed, speed limit close to deep groove ball bearings.
3. N-type and NU-type can be axially moved to adapt to changes in the relative position of the shaft and the housing due to thermal expansion or installation errors, can be used for free-end support.
4. Shaft or seat hole machining requirements are higher, the bearing outer ring axis relative deflection to be strictly controlled, so as to avoid contact stress concentration.
5. Inner ring or outer ring detachable, easy to install and disassemble.
product features
Cylindrical roller contact with the raceway, radial load capacity. Both for heavy loads and shock loads, but also for high-speed rotation. Cylindrical roller bearing raceway and rolling body geometry. After the improved design, the new structure design with higher carrying capacity, ribs and roller end faces not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions in the contact area between the roller end face and the ribbing edge, Bearing performance. Large and medium-sized motor bearings, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gear boxes, rolling mills, shaker and lifting transport machinery.
Precautions
Vibration: In normal use, the vibration damage to the bearing is quite sensitive, spalling, indentation, rust, cracks, wear and so will be reflected in the bearing vibration measurement. Therefore, by using a special bearing vibration measuring instrument (frequency analyzer, etc.) can measure the size of the vibration, the frequency distribution can infer the specific circumstances of the anomaly. The measured values vary depending on bearing conditions or sensor installation location, etc. Therefore, the measured values of each machine must be analyzed and compared beforehand to determine the judgment criteria.
Temperature: With high temperature often said cylindrical roller bearings have been in anomalies. High temperature is also harmful to the bearing lubricant. Bearing overheating can sometimes be attributed to the bearing lubricant. If the bearing temperature exceeds 125 ℃ even long-term transfer will reduce the bearing life. Causes of high temperature bearings include: insufficient lubrication or excessive lubrication, bearing raceway contains impurities, the limit speed is too high, the bearing long-term overload operation.
Cylindrical Roller Bearings Roller cylindrical roller bearings to the heart. Cylindrical Roller Bearings The internal structure of the roller 90 ° perpendicular to each other cross (this is the name of the Crossed Roller Bearings), the interval between the rollers with a cage or spacer to prevent the roller tilt or roller Between the mutual inspection, effectively prevent the increase of rotational torque.
Cylindrical roller and raceway for the linear contact bearings. Load capacity, mainly bear radial load. Rolling body and ferrule rib friction, suitable for high-speed rotation. According to the ring with or without ribs, can be divided into NU, NJ, NUP, N, NF single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearings. The bearing is the inner ring, outer ring detachable structure.
Inner ring or outer ring without ribs cylindrical roller bearings, the inner ring and outer ring can be relative to the axial movement, it can be used as a free end bearings. One side of the inner ring and the outer ring with double ribs, the other side of the ring with a single rib roller bearings, can withstand a certain degree of axial load in one direction. The general use of steel stamping cage, or copper alloy car body cage. However, there are also some polyamide forming cages.
Bearing characteristics
1. Rollers and raceways for line contact or repair line contact, radial load capacity, suitable for heavy loads and impact loads.
2. Friction coefficient is small, suitable for high speed, speed limit close to deep groove ball bearings.
3. N-type and NU-type can be axially moved to adapt to changes in the relative position of the shaft and the housing due to thermal expansion or installation errors, can be used for free-end support.
4. Shaft or seat hole machining requirements are higher, the bearing outer ring axis relative deflection to be strictly controlled, so as to avoid contact stress concentration.
5. Inner ring or outer ring detachable, easy to install and disassemble.
product features
Cylindrical roller contact with the raceway, radial load capacity. Both for heavy loads and shock loads, but also for high-speed rotation. Cylindrical roller bearing raceway and rolling body geometry. After the improved design, the new structure design with higher carrying capacity, ribs and roller end faces not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions in the contact area between the roller end face and the ribbing edge, Bearing performance. Large and medium-sized motor bearings, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, gear boxes, rolling mills, shaker and lifting transport machinery.
Precautions
Vibration: In normal use, the vibration damage to the bearing is quite sensitive, spalling, indentation, rust, cracks, wear and so will be reflected in the bearing vibration measurement. Therefore, by using a special bearing vibration measuring instrument (frequency analyzer, etc.) can measure the size of the vibration, the frequency distribution can infer the specific circumstances of the anomaly. The measured values vary depending on bearing conditions or sensor installation location, etc. Therefore, the measured values of each machine must be analyzed and compared beforehand to determine the judgment criteria.
Temperature: With high temperature often said cylindrical roller bearings have been in anomalies. High temperature is also harmful to the bearing lubricant. Bearing overheating can sometimes be attributed to the bearing lubricant. If the bearing temperature exceeds 125 ℃ even long-term transfer will reduce the bearing life. Causes of high temperature bearings include: insufficient lubrication or excessive lubrication, bearing raceway contains impurities, the limit speed is too high, the bearing long-term overload operation.
