The external‑tooth design on the outer ring meshes well with driving pinions for direct power transmission and simplifies machine‑structure layout. Bearing rings are made from 42CrMo alloy steel and rolling balls adopt GCr15 material. After induction quenching, raceway hardness reaches HRC55‑62 against abrasion. Double‑side rubber seals prevent dirt and moisture from getting inside the bearing. Pre‑processed mounting holes make installation and maintenance simple for assembly workers.

We supply full‑size standard models in the 2100 series, and support custom‑made gear modulus, tooth quantity and internal clearance according to customer demands. With compact size and reasonable cost, these external‑gear slewing bearings are popular for mobile cranes, small excavators, solar‑track devices and engineering rotary equipment. Every product passes hardness detection, gear‑precision check and load‑simulation tests before shipment to ensure stable long‑time operation. Our factory also provides customized anti‑corrosion treatment for severe‑working‑condition projects.