Preferred bearing heavy truck transmission technology upgrades

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The driving performance of the vehicle as the core system of the vehicle, the quality of the powertrain. Harsh and complicated to use in order to meet the commercial vehicle workers

Conditions, such as overloadin g, high-speed, high-temperature, vibration, shock, tapered roller bearings to become the the driveline preferred bearing type by virtue of its own characteristics.
The obvious advantages of tapered roller bearings
(1) can withstand composite radial and axial loads. In the transmission, drive axle, wheels, composite load is the most common condition, especially

Driving bevel gear drive axle center bearing is being affected by the large radial and axial loads. china bearing manufacturer
(2) under the premise of the same load capacity tap ered roller bearing size is smaller than the ball bearings and cylindrical roller bearings. For example, in the transmission using round

Taper roller bearings, is conducive to reducing the radial dimension and the respective axes parallel distance, especially in the center of the transmission shaft bearings (also known as the pocket bearing), if using

Smaller contact angle tapered roller bearings, not only can reduce the radial size of the input shaft, but also help to reduce the system caused by the thermal expansion of the bearing load zone

To reduce the impact. bearing roller bearings
(3) the axial clearance is adjustable to optimize bearing life. Bearing life and clearance curve diagram (Figure 1), you can learn the life of the bearing and bearing

Clearance has a direct relationship. According to the specific conditions of the clearance precise adjustment helps to get the best service life of the bearings.
(4) help to improve the rigidity of the bearing system to reduce noise. Tapered roller bearing roller in line contact can reduce contact stress, and by

Bearing clearance adjustment system preload, thus greatly improving system rigidity. For example, to ensure the bridge center House gear is correct, the operation

Smooth, reduce noise, tapered roller bearings appropriate preload is applied to improve the rigidity of the support.
(5) The effect of bearing raceway of internal pump oil lubrication. Tapered roller bearing its internal structure, dur ing operation, the centrifugal force allows the lubricating

Oil automatic roller small end to big end, either heat, they can continue to carry away the impurities of the internal raceway.
(6) inside and outside the ring detachable, easy assembly. The transmission and the drive axle is installed in the the bearing installation site inaccessible occasions, using separable

Tapered roller bearings, both easy to implement on axis, and easy gear meshing adjustment. roll bearings