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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

Different from standard heavy‑duty slewing bearings, this model features an extremely slim cross‑section with smaller steel ball rolling elements. This

Simply put, gear runout describes whether every gear tooth maintains consistent positioning relative to the rotation center when the full‑circle

Watch our factory video showing the gear cutting procedure of heavy-duty external-tooth slewing rings, custom manufactured for excavators, cranes and

Many customers often confuse two similar-looking machining processes when viewing production footage of slewing bearings: inner bore chamfering and slewing

Introduction For slewing bearings operating in ultra-high temperature working environments, standard rubber seals often fail prematurely due to thermal aging,

Learn our factory’s practical procedure for measuring radial clearance of large slewing bearings. See how overhead crane and dial indicator

Meta Description: Longwei custom‑manufactures heavy‑duty three‑row roller external gear slewing bearings for Australian mining. Watch our on‑site inspection video for