Deep groove ball bearings
Is the most common rolling bearing. It has a simple structure, easy to use. Mainly used to accommodate radial loads, but when it increased when a radial clearance of bearings FAG, has a performance of angular contact ball bearings can accommodate combined radial and axial loads. At higher speed, inappropriate use of thrust ball bearings can also be subjected to purely axial loads. Compared with other types of bearing of the same size, these bearings are small coefficient of friction, high limit speed. But not impact resistance is not suitable to withstand heavy loads.
After the deep groove ball bearings are mounted on the shaft, in the context of the axial internal clearance of the bearing may limit the axial displacement of the shaft or housing in both directions, so in bidirectional axial positioning. In addition, the type of bearings also has some capacity, when compared to shell-hole when the tilt 2 ′ ~10 ′, still functioning, but had certain influence on bearing life.
"Rolling bearings"
Most representative of the rolling bearing, wide range of uses, may withstand the radial load and the bidirectional axial load.
For high-speed rotation and low noise, low vibration steel dust cover or rubber sealing ring seal bearing filling up front, with the right amount of grease, bearings with a snap ring or flanges in the outer ring, namely axial positioning easy, and for the enclosure of the installation.
Maximum load-bearing size and the standard bearing the same, but the inner and outer rings have a filling slot, increases the number of ball, increased load ratings.
"Spherical roller bearings"
The bearing outer ring with double raceways of spherical rolling road between inner ring with spherical rollers, according to different internal structures, into r, RH, RHA and SR are four types. That outer ring raceway arc center aligned with bearing, spherical, so it can be automatically adjusted by deflection of the shaft or housing or not concentric axis caused by not being. May withstand the radial load and the bidirectional axial load. In particular, large radial load capacity, applicable to accommodate heavy loads and shock loads. Bearings with a tapered bore or withdrawal sleeves can be made by using fasteners on the axis of Assembly and disassembly.
Spherical roller bearings can withstand greater radial load, but also able to bear axial loads. The bearing outer ring raceways is spherical-shaped, it has a spherical, when mechanical bent or tilt of axis centerline with centerline and inner ring and outer ring when the relative slope not exceeding 1 ° ~2.5 °, FAG bearings are still able to work.
"The needle"
Entity type needle roller bearings with inner ring bearings and NU-type cylindrical roller bearing of the same basic structure, but due to the needle, size can shrink and can withstand large radial bearings without inner ring are installed with appropriate precision and hardness of the shaft used as a Raceway surface.
"Ball joint"
-Spherical plain bearings with lubrication and lubrication. bearings are a sliding bearings with special structure.
Its structure is simpler than rolling bearing, which consists mainly of a spherical outer ring, able to withstand greater loads, based on spherical inner ring and its different types and structures, may withstand the radial load and axial or radial, axial joint loading.
Generally used for slower swing movement (the corner games, or from within a certain angle of tilt movement (the spherical movement), due to the sliding surface is spherical), support shaft and shaft housing bore when the larger misalignment, can still work properly.
"Linear bearings"
Linear motion ball bearings are mainly used in linear reciprocating motion of the parts in mechanical devices, with little friction, movement flexibility and convenient to replace and so on.
It is widely used in textile machinery, printing machinery, pharmaceutical machinery, precision machine tools, electric cutters and recorder, and other fields.
"Pressure bearing"
Pressure bearings are separable, according to their structure is divided into one-stress balls, and two-way stress ball bearings.
Unidirectional pressure bearings can accommodate axial loads in one direction, bi-directional pressure bearings can accommodate axial loads in both directions.
They are unable to withstand the radial load.
"Thrust roller bearings"
Thrust roller bearings including spherical roller thrust bearings, cylindrical roller thrust bearings and Taper roller thrust bearings.
Spherical roller thrust bearings can also accommodate axial and radial loads, axial load radial load must not exceed 55%. Away another important characteristic of such bearings are self-aligning capability, thus enabling the misalignment and deflection of the shaft are not very sensitive. As long as the load p and p. Less than 0.05C and the shaft rotation, bearings allows a range of angle. Smaller values apply to bearings, spherical angle allowed load increases and decreases.