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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>What is a tapered roller bearing? What is a tapered roller bearing?
It is said that the tapered roller bearing can be separated; the inner ring and the roller and the cage together with the outer ring can be separated from the tapered roller bearing device. The touch line of the roller and the track touch can correct the stress gathering. Tapered roller bearings are capable of accepting large radial loads and axial loads. Tapered roller bearings can only transmit one-way axial loads; thus, in order to transmit axial loads in opposite directions, another cone with a symmetrical device is required. Roller bearings. The largest number of tapered roller bearings are single row tapered roller bearings. In the front wheel hub of the car; these years also used small-scale double row tapered roller bearings. Four-row tapered roller bearings In heavy machinery such as large cold and hot rolling mills. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The classified single row tapered roller bearing has an outer ring; the inner ring and the set of tapered rollers are comprised by the basket cage as an inner ring assembly. The outer ring can be separated from the inner ring assembly; according to the ISO tapered roller bearing outer dimensions Standard rules; any standard type of tapered roller bearing outer ring or inner ring assembly should be able to complete international exchange with the same type of outer ring or inner ring assembly. That is, the same type of outer ring except for external scale, public service needs to conform to ISO492 (GB307) outside the rules; the cone angle of the inner ring assembly, the diameter of the component cone, etc. also need to comply with the relevant rules of the exchange. General; single-row tapered roller bearing outer ring raceway cone angle before 10 ° ~ 19 °; can together Accept the combined effect of bearing load and radial load. The larger the cone angle; the larger the capacity to accept the axial load. The larger cone angle bearing; the rear code plus B; the cone angle between 25 ° ~ 29 °; It can accept large axial loads. Others; single row tapered roller bearings can adjust the clearance of the device during the installation process. The outer ring (or inner ring) of the double row tapered roller bearing is a whole. Circle (or outer ring) small end face Near; center spacer; clearance by adjusting the spacer thickness; the thickness of the spacer can also be used to adjust the double row tapered roller bearings preloaded.
The tapered roller bearing used mainly accepts radial and axial combined loads. The bearing bearing capacity depends on the raceway point of the outer ring; the larger the viewpoint, the greater the bearing capacity. This type of bearing is a separate bearing; The number of columns in the middle rolling body is divided into single row, double row and four row tapered roller bearings. The single row tapered roller bearing clearance needs to be adjusted by the user when the device is installed. The double row and four row tapered roller bearing clearances are already in the factory. According to user requirements; no user adjustment. Tapered roller bearings have conical inner and outer ring raceways; tapered rollers are placed between the two. The projection line of all cones is at the same point on the bearing axis. Reunion. This depiction makes the tapered roller bearing uniquely suitable for composite (radial and axial) loads. The axial load of the bearing is mostly determined by the touch angle α, and the α viewpoint is larger; the axial load is more The height of the viewpoint is indicated by the calculation coefficient e, the larger the value of e; the larger the touch point of view; the greater the applicability of the bearing to accept the axial load. The tapered roller bearing is generally disengaged; that is, by the roller and the retaining Inside the rack assembly Cone components can be separated by means of the cup (outer ring). Tapered roller bearings are widely used in automotive, mill, mining, metallurgy, mechanical and other professional plastic.
Principle Principle of tapered roller bearing oscillation requires the use of grey system theory, ambiguous mobilization theory and computational regression theory; and the use of gray correlation analysis, vague modulation proximity analysis, unary linear regression analysis and gray ambiguous cluster analysis; The data of the experiment is processed, etc.;
Under normal circumstances; the influence of the outer raceway parameters of the tapered roller bearing on the oscillation is smaller than the inner raceway parameter; however, in some special cases, the influence of the outer raceway parameter on the oscillation is greater than the inner raceway parameter, the tapered roller The bearing mean value, the mean value of the roller ball base roughness, the inner race roughness and other parameters have the greatest influence on the bearing oscillation. In summary; the bearing oscillation is affected by most parameters of the tapered roller.
The device adjusts the axial clearance with respect to the axial clearance of the device of the tapered roller bearing; the adjusting nut on the journal, the adjusting washer and the thread in the bearing housing hole can be used; or the pre-tightening spring can be used to adjust the axial direction. The gap between the big and the evil 沧笆钡牟 Jia 谩 (18) 岢 涞 涞 18 (18) 嵊胫岢 嵊胫岢 牟 牟 兀豢 兀豢 . . . . . . . . . . . . . . . . . . . . . . . . When adjusting the clearance; it is necessary to consider the influence of temperature rise on the axial clearance; the amount of clearance reduction caused by temperature rise is budgeted; that is, the axial clearance should be adjusted appropriately. Speed ​​and oscillating bearings; no backlash device; or preloading device. The intention is to make the roller and raceway of the tapered roller bearing have an excellent touch; the load is evenly distributed; the roller and raceway are protected. The oscillating impact is damaged. After adjustment; the size of the axial clearance is checked with a dial gauge. The method is to first fix the dial gauge to the fuselage or the bearing seat; and make the dial gauge contact against the bright appearance of the shaft; Pushing the shaft left and right along the axial direction; depicting the maximum swinging characteristic tapered roller bearing of the hands The inner ring; the raceway surface of the outer ring and the roller cone pole gather at a point on the central axis of the bearing; the radial load acts on the bearing; then the axial force occurs. Therefore; the two bearings must be oriented; or Paired double-bearing bearings; double-row bearing applications. Combined and double-row tapered roller bearings When radial load effects are applied to tapered roller bearings; internal contact angles induce axial loads. Induced axial loads occur in the inner ring, The effect of the outer ring is different; so the pair or multi-row tapered roller bearings are generally used to offset this force. Four-row tapered roller bearings.
Thrust ball bearing features: Thrust ball bearing is a kind of separate bearing; the shaft ring and the seat ring can be separated from the cage and the steel ball assembly. The shaft ring is a ferrule matching the shaft; the seat ring is opposite to the bearing housing hole Fitted ferrule; there is a gap between the shaft and the thrust ball bearing, the thrust ball bearing can only accept the axial load; the one-way thrust ball bearing can only accept the axial load in one direction; the two-way thrust ball bearing can accept the axial direction in two directions load,
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Source: China Bearing Network Time: 2014-10-01