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KOYO imported bearing layout and classification
Source: China Bearing Network Time: 2018-02-06
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The professor analyzes the effects of various parts in the bearing as follows:
About the radial bearing; the inner ring generally cooperates with the shaft; and works with the shaft; the outer ring generally cooperates with the bearing seat or the mechanical housing hole; the support effect. However; in some cases; there are also outer ring operations The inner ring is fixed to support the effect or the inner ring and the outer ring are all working together. About the thrust bearing; the shaft ring which cooperates with the shaft and moves together; and the bearing seat or the mechanical housing hole cooperates with each other and supports the effect The seat ring. The rolling body (steel ball, roller or needle roller) is generally placed between the two ferrules in the bearing for rolling movement; its shape, size and quantity directly affect the load of the bearing. And the use of functions. The cage can not evenly separate the roll body from the gap; it can also guide the rotation of the roll body and improve the smooth function inside the bearing.
1. According to KOYO imported bearing layout type classification (1) bearing according to its acceptable load direction or nominal touch angle is different; divided into:
1) Radial bearing ---- primary for KOYO bearings bearing radial load; its nominal touch angle is from 0 to 45. It is different according to the nominal touch angle; it is divided into: radial touch bearing----nominal Radial bearing with a touch angle of 0: a centripetal angle touch bearing----a radial bearing with a nominal touch angle greater than 0 to 45.
2) Thrust bearing----The first KOYO imported bearing for axial load; its nominal touch angle is greater than 45 to 90. According to the nominal touch angle, it is divided into: axial touch bearing----nominal touch angle Thrust bearing of 90: thrust angle touch bearing----the thrust bearing with a nominal touch angle greater than 45 but less than 90.
(2) Bearings according to the type of their roll; divided into:
1) Ball bearing----roller is ball:
2) Roller bearing----roller is roller. Roller bearing is according to roller type; it is divided into: cylindrical roller bearing----roller is a cylindrical roller bearing; the length of cylindrical roller The ratio of the diameter is less than or equal to 3, the needle bearing----roller is the needle bearing; the ratio of the length to the diameter of the needle is greater than 3; but the diameter is less than or equal to 5mm; tapered roller bearing----rolling The body is a tapered roller bearing; the spherical roller bearing one by one rolling body is a spherical roller bearing.
(3) Bearings can be adjusted according to their operation, and are divided into:
1) Self-aligning bearing----the raceway is a spherical shape, which can be used to the angular error and angular movement between the two raceways.
2) Non-aligning bearings (rigid bearings)----bearings that can offset the axial angle between the raceways.
(4) Bearings are divided into:
1) Single row bearings----bearings with one row of rolling bodies;
2) Double row bearings----bearings with two rows of rolling bodies;
3) Multi-row bearings----bearings with more than two rows of rolling elements, such as three-row and four-row bearings.
(5) Bearings can be separated according to their components, divided into:
1) Can be separated from the bearing----with bearings that can be separated from the parts,
2) Do not leave the bearing ---- After the bearing is matched at the end, the ferrule can not be free from the bearing.
(6) Bearings can be divided into various layout types according to their layout shape (if there is no filling groove, whether there are inner and outer rings and the shape of the ferrule, the layout of the ribs, or even the cage).
2. According to the KOYO imported bearing scale, the size of the bearing is large according to its outer diameter scale.
(1) Miniature bearings----bearings with a nominal outer diameter scale of 26 mm or less;
(2) Small bearings----bearings with a nominal outer diameter scale of 28-55mm;
(3) Small and medium-sized bearings----bearings with a nominal outer diameter scale of 60-115mm;
(4) Medium and large-sized bearings----bearings with a nominal outer diameter scale of 120-190mm (5) Large bearings----bearings with a nominal outer diameter scale of 200-430mm;
(6) Extra large bearings----bearings with a nominal outer diameter scale of 440mm or more.
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