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How to maintain crane slewing bearing?
  • 2021-10-20 08:45:00

First of all, pay attention to the danger of being dragged into the rotary pinion, crushing and shearing. During inspection and maintenance, make sure that repair workers are not in the danger zone between the main boom, the loading vehicle and the roller.Next, check the slewing bearing bolts1. The crane needs to regularly check the bolts on the slewing...

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Preventive measures for rusting of slewing bearing
  • 2021-09-22 08:58:00

1. Immersion methodFor small bearings, it can be soaked in anti-rust grease to reduce the chance of rusting.2, brushing methodFor some larger slewing bearings, the soaking method cannot be used, and it can be brushed. When brushing, pay attention to evenly smear on the surface of the slewing bearing, so as not to cause accumulation and leakage.3. Spray ...

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Precautions for loading, unloading and storage and transportation of slewing bearing
  • 2021-08-12 05:01:00

1.The slewing bearing must be carefully installed and removed.2.The transportation and storage should be placed horizontally, and the storage must be placed in a dry room.3.Lifting should be done with lifting ring screws in a horizontal way, and do not collide, especially in the radial direction.4. The outer surface of the slewing bearing is coated with...

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What is the difference between slewing bearings and general bearings?
  • 2021-07-15 07:03:00

1. The size of the slewing bearing is large, and its diameter is usually 0.4-10 meters2. The slewing bearing generally bears axial force, radial force, and a large overturning moment.3. The running speed of the slewing bearing is low. In many occasions, the slewing bearing only rotates back and forth within the angle.4. Usually, the slewing bearing is e...

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What are the materials usually used for slewing bearings?
  • 2021-06-03 00:08:00

1. Ring and rolling element materialIn general, hard carbon chromium bearing steel is used as a whole for slewing bearing rollers. Manufactured from grade GCr15 or GCr15SiMn steel; turntable bearing caps are made of case hardened steel, usually 50Mn steel, but other brands of case hardened steel can sometimes be selected to meet the host requirements fo...

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