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Heavy-duty custom large slewing bearings manufactured for mining machinery in Africa. View photos of our large diameter slewing rings packed and awaiting delivery to African mine sites. Custom Large Size Slewing Bearings for African Mining Project — Packed and Ready for Shipment Mining operations in Africa demand robust, long-lasting rotating components that can withstand heavy […]

Different from standard heavy‑duty slewing bearings, this model features an extremely slim cross‑section with smaller steel ball rolling elements. This design brings two major manufacturing challenges. 1. Rigidity control during gear cutting Oversized thin rings are prone to deformation under clamping and cutting force. Our fixture is custom built to hold the workpiece evenly, avoiding

Simply put, gear runout describes whether every gear tooth maintains consistent positioning relative to the rotation center when the full‑circle gear rotates. Excessive gear runout will lead to the following problems during one full rotation of the gear: – Tight meshing at certain positions ​ – Loose meshing at other positions ​ – Unwanted noise,

Watch our factory video showing the gear cutting procedure of heavy-duty external-tooth slewing rings, custom manufactured for excavators, cranes and mining equipment.   Slewing bearings, also widely known as slewing rings, serve as the critical rotating joint for heavy machinery including excavators, tower cranes, mining rigs, pile drivers and wind power equipment. Among all types,

Many customers often confuse two similar-looking machining processes when viewing production footage of slewing bearings: inner bore chamfering and slewing ring mounting hole drilling. In our on-site video, the vertical machining center drills through holes vertically on the flange face of the slewing ring. This process creates mounting holes, used to fasten the slewing bearing

Introduction For slewing bearings operating in ultra-high temperature working environments, standard rubber seals often fail prematurely due to thermal aging, deformation and wear, which will cause grease leakage and contaminant ingress, shortening the whole service life of slewing rings. To solve this industry pain point, we implement professional steel sealing treatment for heavy-duty slewing bearings.

Learn our factory’s practical procedure for measuring radial clearance of large slewing bearings. See how overhead crane and dial indicator work together to guarantee precise bearing pre‑delivery inspection.   hy Radial Clearance Matters for Slewing Bearings Radial clearance is one of the most critical technical parameters for slewing bearings. Improper radial play will directly lead

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,

Lightweight thin slewing bearings are widely used in filling machinery, automation equipment, solar trackers and small engineering machinery. In this workshop video, we show you our laser marking process for ultra-thin lightweight slewing rings.   We adopt non-contact laser engraving to print permanent nameplate data directly on the slewing bearing surface. Marked information includes model