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What is the functional characteristics of the inch tapered roller bearing? /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
First, the product classification ZWZ produces metric, inch single, double, four-row tapered roller bearing layout type 1. Single row tapered roller bearings These bearings can only constrain axial displacement in one direction of the shaft or casing; accept axial loads in one direction. Under the effect of radial loads; the axial forces occurring in the bearings must also be balanced. The two bearings should be used face to face or back to back.
2. Double row tapered roller bearings This type of tapered bearing can accept a bidirectional axial load together with a radial load. The two-way axial movement of the shaft or housing can be constrained within the axial clearance of the bearing.
3. Four-row tapered roller bearings The function of this type of bearing is the same as that of a double-row tapered roller bearing; however, it has a larger radial load than a double-row tapered roller bearing; the limit speed is slightly lower; it is primarily used for heavy machinery; Machine and so on.
4. Multi-sealed double and four-row tapered roller bearings ZWZ supply long life, multi-sealed double and four-row tapered roller bearings. Personalized new depiction of bearings; modified traditional description of fully sealed bearings; combined with sealing and dustproof New type of seal layout; improved sealing effect; improved sealing function. Multi-sealed double and four row tapered roller bearings compared with open layout bearings; life expectancy increased by 20% to 40%, lubricant consumption decreased by 80%.
Multi-sealed bearings are marked with the rear code XRS.
Second, the product features tapered roller bearings have tapered races on the inner and outer rings; tapered rollers are placed between the raceways. If the tapered faces are extended; the end is concentrated on the bearing axis. Tapered roller bearings are the first It is used to accept the radial direction mainly radial load; axial joint load. The axial bearing capacity of the bearing is determined by the contact angle. The larger the antennae, the larger the axial bearing capacity. The tapered roller bearing is a separate bearing, and the inner ring with the roller and the cage constitutes an inner component, which can separate the device from the outer ring. The bearing can constrain the axial displacement of one side of the shaft or the casing; the shaft is not allowed to be skewed relative to the casing hole. Under the radial load effect; additional axial force occurs; thus; usually in the bearing two bearings; outside the bearing The ring and the inner ring should be opposite to each other.
The primary use of this type of bearing: automobile front wheel, rear wheel, transmission, differential, pinion shaft; machine tool spindle; construction machinery; large-scale agricultural machinery; railway vehicle gear reduction equipment; rolling mill roller neck small reduction equipment.
Third, the public service ZWZ metric tapered roller bearings have the usual level of public service, but also supply P6X, P6, P5, P4, P2 level public service products, all in line with GB307.
ZWZ inch tapered roller bearings have the usual level of public service, and can also supply CL2, CL3, CL0, CL00 level public service products as needed.
Fourth, scale scale The basic dimensions of ZWZ tapered roller bearings are listed in the scale data table; single row tapered roller bearings: inner diameter scale: 20mm ~ 1270mm outer diameter scale: 40mm ~ 1465mm width scale size: 15mm ~ 240 mm double Column tapered roller bearings:
Inner diameter scale: 38mm ~ 1560mm outer diameter scale: 70mm ~ 1800mm width scale: 50mm ~ 460 mm four-row tapered roller bearing inner diameter scale: 130mm ~ 1600mm outer diameter scale: 200mm ~ 2000mm width scale size: 150mm ~ 1150 mm V. Equivalent dynamic load P=Fr KN] When Fa/Fr≤e P=0. 4Fr +YFa [KN] When Fa/Fr>e is used in pairs of tapered roller bearings (the basic shape scale is not The same); when accounting for the equivalent dynamic load of the bearing; it is necessary to account for the additional axial force caused by the radial load. The additional axial force S of the single row tapered roller bearing; can be approximated by the following formula: S = Fr/2Y 5. Equivalent static load 1. Single row tapered roller bearings P0=0.5Fr +Y0Fa KN]
If P0 <Fr, take P0=Fr double row and four row tapered roller bearings P=0Fr +Y1Fa [KN] When Fa/Fr≤e P=0.67Fr +Y2Fa [KN] When Fa/Fr>e 2. Equivalent static load P0=Fr +Y0Fa [KN]
Both Fr and Fa refer to the effect of a single column; the total load on the double-row and four-row bearings.
Sixth, radial clearance ZWZ single row tapered roller bearings only have clearance after the equipment; and after another adjustment of the bearing in the opposite direction to adjust.
Seven, cage tapered roller bearings are usually selected from steel stamping; basket-shaped cage; but when the scale is large; also use the vehicle-made solid pillar cage.
1. When the outer diameter of the bearing D ≤ 650mm; the steel plate stamping cage is selected; the rear bearing code of the cage is not marked 2. When the outer diameter of the bearing is D>650mm; the steel solid strut cage is selected; the rear post code of the cage is not marked by the analysis of the British tapered roller bearing; the vast purchase of bearing people in the future must purchase the British tapered roller bearing. Look carefully.
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Source: China Bearing Network Time: 2013-04-22