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What characteristics should forestry machinery slewing bearings have?

03-20, 2023 / in Bearing Knowledge / by LDB

Slewing bearings for forestry machinery are specialized bearings designed for use in forestry equipment such as harvesters, feller bunchers, and skidders. These bearings are typically used to support the rotating components of the machinery, such as the harvesting head or the grapple arms, allowing them to rotate smoothly and efficiently.

The forestry industry presents unique challenges for slewing bearings due to the harsh operating conditions they are subjected to. Forestry machinery operates in rugged terrain and is exposed to extreme weather conditions, dust, dirt, and debris. This can cause premature wear and tear on the bearings, leading to reduced performance and increased downtime.

To meet the demands of forestry machinery, slewing bearings are designed with special features such as:

High load capacity

Forestry machinery requires bearings that can withstand high loads and shock loads, as well as the forces generated by rough terrain and heavy use.

Corrosion resistance

Forestry machinery is often exposed to moisture, which can cause corrosion and rust on the bearings. To prevent this, slewing bearings for forestry machinery are typically made from corrosion-resistant materials such as stainless steel.


To prevent dirt, dust, and debris from entering the bearing, slewing bearings for forestry machinery are typically sealed with specialized seals that provide additional protection.


Proper lubrication is essential for the performance and longevity of slewing bearings in forestry machinery. Bearings may be designed with lubrication systems that provide continuous lubrication to the bearing during operation.

Overall, slewing bearings for forestry machinery are engineered to withstand the demanding conditions of the forestry industry, providing reliable performance and long-lasting durability.

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