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swpt_SwESAnL8  
#1 Posted : Tuesday, September 22, 2020 10:06:57 AM(UTC)
swpt_SwESAnL8

Rank: Advanced Member

Groups: Registered
Joined: 9/10/2020(UTC)
Posts: 76

Difference between slewing bearings and ordinary bearings



1. The installation method is different. The slewing bearing is not sleeved on the mandrel and installed in the bearing box like ordinary bearings, but is fixed to the upper and lower supports by screws.



2. Slewing bearings generally have to bear several loads, not only axial and radial forces, but also large overturning moments. Therefore, a set of slewing bearings often plays the role of several sets of ordinary rolling bearings.



3. The running speed of slewing bearings is low, usually below 50 rpm. In many cases, the slewing bearing does not run continuously, but only rotates back and forth within an angle, which is equivalent to a so-called "swing bearing".



4. The size of the slewing bearing is larger than that of ordinary bearings. Its diameter is usually 0.4 to 10 meters, and some diameters reach 40 meters.



5. Generally, the slewing bearing is provided with a ring gear for rotary driving and a dust-proof sealing device.



6. In terms of materials, heat treatment and other manufacturing processes, slewing bearings and rolling bearings are very different. https://www.dtsanyparts.com/slew...sany-excavator-sy16.html
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