Meta Description: Longwei custom‑manufactures heavy‑duty three‑row roller external gear slewing bearings for Australian mining. Watch our on‑site inspection video for raceway & rolling element quality verification.
Mining equipment operates under extreme working conditions: heavy shock loads, continuous heavy‑duty rotation, dusty site environment, and high demand for load‑bearing capacity and structural stability. For large‑scale mining machinery, the slewing bearing is one of the most critical core components, directly determining equipment uptime and service life.
Recently, Longwei completed a tailor‑made large‑size three‑row roller external gear slewing bearing for an Australian mining customer. This is a heavy‑duty three‑row roller slewing solution specially customized for local mine operating requirements.
Three‑row roller slewing bearing features three independent roller rows. It can bear axial load, radial load and overturning moment at the same time. Its super‑high load‑carrying capacity makes it widely applied for heavy‑duty mining excavators, stacker‑reclaimers and other large mining machinery. The external‑tooth structure facilitates stable power transmission for slewing drive.
Before shipment, strict on‑site opening inspection was carried out in our workshop. In this 25‑second on‑site inspection video, we disassembled the upper ring of this large slewing bearing. Our technical team visually checked the raceway surface condition, roller elements, assembly clearance and internal processing quality.
Opening‑box inspection is a key quality control link for large custom slewing bearings. Through direct observation of internal raceway hardness, surface finish, roller installation status, we double‑check whether heat treatment, machining and assembly meet customer drawing specifications and mining‑grade quality standards. Every detail is verified to avoid hidden wear risks for end‑user mine site.
At Longwei, we provide OEM & ODM custom slewing bearing service for global mining clients. Including three‑row roller type, single‑row ball type, cross‑roller slewing bearings, internal gear / external gear / non‑gear configurations. We support custom dimension, heat‑treatment standard, sealing solution according to your working condition.
If you are sourcing heavy‑duty slewing bearings for mining, construction, port machinery projects, welcome to send us your drawing or working‑condition parameters for quotation.