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Classification of bearings (2)
Source: Bearing network time: 2014-03-15
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Copper alloy or phenolic resin cutting and holding frame, the main component of resin forming and holding frame: automobile: rear wheel, transmission, electrical equipment components, electrical: general-purpose electric motor, household appliances, other: exterior, internal combustion engine, construction machinery, railway vehicles, loading and unloading transfer machinery , agricultural machinery, various industrial machinery angular touch ball bearing rings and the ball have a touch angle; the standard touch angle is 15 °, 30 ° and 40 °
The larger the touch angle, the greater the axial load. The smaller the touch angle, the better the high-speed rotating single-row bearing can accept radial load and one-way axial load.
DB combination, DF combination and double row bearings can accept radial load and bidirectional axial load
DT combination is suitable for one-way axial load; in case of lack of additional load of single bearing, high-speed ACH type bearing has small ball diameter and many balls; most of them are used for machine tool spindle angular touch ball bearings for high speed and high precision rotating layout. The two single-row angular touch ball bearings combined for the reverse side share the inner and outer rings; the radial load and the two-way axial load are accepted. The non-filled groove bearing also has a sealed type. The first applicable frame: the steel plate stamping frame (bowl shape... single row) , S shape, crown shape... double column)
The main use of copper alloy or phenolic resin cutting frame and resin forming holder: single row: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft double row: oil pump, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery four-point ball bearings can accept radial loads and bidirectional axial loads. Single bearings can replace the front or reverse combination of angular touch ball bearings for acceptance A component load with a large axial load or axial load component can form a touch angle (α) between the bearings and the axial load in any direction; thus the ferrule and the ball are always on either touch line. Point touch first applicable support frame: copper alloy cutting and holding frame primary use: aircraft jet engine, gas turbine self-aligning ball bearing because the outer ring raceway surface is spherical; with self-aligning function; thus can actively adjust the shaft or shell The deflection or the different core causes the axially-concave tapered bearing to be easily punched on the shaft by means of fasteners. Shelf: rosettes ... 12,13,22 ... 2RS, 23 ... 2RS
Sunflower shape...22,23
Woodworking machinery, textile machinery drive shaft, vertical belt bearing, cylindrical roller bearing, cylindrical roller and raceway are line touch; radial load can be large; that is suitable for receiving heavy load and impact load; also suitable for high speed rotation N-type and NU-type can be moved axially; can be used to change the relative orientation of the shaft and the shell due to thermal expansion or equipment error; most commonly used as a one-way axial load that the free end bearing NJ type and NF type can accept to a certain extent; NH type and NUP type can accept a certain degree of bidirectional axial load inner ring or outer ring can be separated; easy to install and disassemble NNU type and NN type anti-radial load rigidity; mostly used for machine tool spindles Stamping and holding frame (Z-shaped), copper alloy cutting and holding frame, pin-type holding frame, and resin molding forming frame for primary use: medium and large-sized motors, generators, internal combustion engines, gas turbines, machine tool spindles, gear reduction equipment, loading and unloading transfer machinery All kinds of industrial machinery solid needle roller bearings have the same layout of inner ring bearings as NU type cylindrical roller bearings; but because of the choice of needle roller; the volume can be reduced. Han 晌 谌χ岢 谌χ岢 丫哂 鲜 鲜 鲜 鲜 群 群 群 陀 陀 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂 媸褂Track wheel, hoist, bridge crane, compressor tapered roller bearing This type of bearing is equipped with a circular table-shaped roller; the roller is guided by the large rib of the inner ring to make the inner ring raceway surface and the outer ring raceway surface and The point of each conical surface of the roller tumbling plane intersects the bearing on the middle line of the bearing. The single-row bearing can accept radial load and one-way axial load; the double-row bearing can accept radial load and bidirectional axial load for receiving heavy load. It is different from the impact load according to the touch chest (α); it is divided into three types: small cone angle, middle cone angle and large cone angle; the larger the touch angle is, the larger the axial load can be. The outer ring and the inner component (the inner ring and the inner ring Roller and self-supporting components can be separated; easy to assemble and disassemble, the bearing code "J" or "JR" has the world interchangeability. This kind of bearing also uses the British series products. The first applicable bracket: steel stamping bracket Forming a resin forming holder, pin The main use of the model: car: front wheel, rear wheel, transmission, differential pinion shaft. Machine tool spindle, construction machinery, large agricultural machinery, railway vehicle gear reduction equipment, rolling mill roll neck and reduction gear centering roller Bearings This type of bearing is equipped with a spherical roller between the outer race of the spherical raceway and the inner race of the double raceway; it is different according to the internal layout; it is divided into four types of R, RH, RHA and SR because of the arc of the outer raceway. Common with the bearing; with self-aligning function; therefore, it can actively adjust the axial load caused by the deflection or different core of the shaft or the casing. The radial load and the biaxial axial load can be accepted. Especially the radial load can be large; For heavy-duty and impact-loaded tapered bore bearings, the following two types of taper holes can be applied to the shaft by using fasteners or withdrawal sleeves:
1:30 (auxiliary code: K30)...applicable to 240,241 series
1:12 (auxiliary code: K).........Applicable to other series of outer ring, oil hole, oil groove and positioning pin hole (one) can be opened. Oil hole and oil groove can also be set on the inner ring. Alloy cutting and sticking frame, steel plate stamping and holding frame, pin-type holding frame, and resin molding forming frame are the primary use: paper making machinery, speed reducing equipment, railway vehicle axle, rolling mill gear box seat, rolling mill roller road, crusher, vibrating screen , printing machinery, woodworking machinery, various industrial speed reducers, vertical belt aligning bearing thrust ball bearings are made of washer-shaped raceway ring with raceway and ball and bracket assembly. The shaft ring; the raceway ring cooperated with the outer casing is called the raceway. The two-way bearing can accept the one-way axial load for the one-way bearing of the middle ring. The two-way bearing can accept the two-way axial load (both can not accept the diameter) To load)
The first applicable adherence frame: steel plate stamping frame, copper alloy or phenolic resin cutting frame, the main component of the resin forming frame: car steering pin, machine tool spindle thrust cylindrical roller bearing by washer-shaped raceway ring (shaft ring, The seat ring) is composed of a cylindrical roller and a bracket assembly. The cylindrical roller is convexly machined; therefore, the pressure between the roller and the raceway surface is evenly distributed to accept a one-way axial load, and the axial load can be large; the axial rigidity is also The most applicable adherence frame: the main use of copper alloy cutting and sticking frame: oil drilling rig, steel making steel mechanical thrust needle roller bearing, separate bearing consists of raceway ring and needle roller and holding frame assembly; can be thin with stamping Raceway ring (W) or cut thick raceway ring (WS) The combination of non-detachable bearings is a single type of bearing that consists of a finely stamped raceway ring and needle roller and holder assembly. The axial load of this type of bearing occupies space. Xinyi filed the 舸 舸 æ“ mostly use only the needle roller and the holder frame; and the shaft and the outer casing of the equipment as the raceway surface Steel plate stamping adheres to the composition of the resin forming frame. The primary use of the gears: car, cultivator, machine tool, etc. Thrust tapered roller bearings. This type of bearing is equipped with a truncated roller (the big end is a spherical surface); the roller is made up of a raceway ( The rim of the shaft ring and the seat ring can accurately guide the one-way bearing that can make the one-way bearing of the shaft ring and the raceway surface of the raceway and the roller surface of the roller tumbling surface intersect on the middle line of the bearing to accept the one-way axial load. Two-way bearing can accept bidirectional axial load bidirectional bearing to cooperate with the middle ring and the shaft; however, because the clearance is used for cooperation; therefore, the axial positioning of the middle ring must be used with the bushing, etc. The first applicable bracket: the primary use of the copper alloy cutting bracket : One-way: crane hook, oil rig swivel two-way: rolling mill roller neck thrust spherical roller bearing This type of bearing spherical roller is placed obliquely; because the raceway surface is spherical; with self-aligning function; It can be promised that the shaft has a number of skew axial loads to be very large; in the case of accepting axial loads, it is also acceptable to use a number of radial loads. The main use of gold cutting: the hydro-generator, vertical motor, propeller shaft for ships, reducer for rolling mill rolling screw, tower crane, coal mill, extruder, forming machine
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