The built-in internal involute gear structure is the defining feature of this series. With gear teeth machined on the inner ring, the structure avoids exposed gear wear and external collision damage common in external gear bearings. All gear teeth undergo precision finishing and professional heat treatment, achieving high meshing accuracy, low transmission backlash and exceptional wear resistance. The internal gear matching method enables compact transmission assembly, effectively saving internal equipment space and improving the overall integration and safety of rotary mechanical systems.

Manufactured from high-strength alloy steel, the bearing features reliable structural toughness and extended service life. Critical working areas including double-row raceways and internal gear teeth are processed via high-frequency induction hardening, forming a dense and wear-resistant surface layer that withstands long-term alternating loads and friction abrasion. Equipped with high-performance bilateral sealing systems, the bearing forms a fully enclosed internal structure, effectively blocking dust, water vapor and industrial debris while locking internal lubricant. This ensures stable low-friction operation and greatly reduces routine maintenance frequency in complex working environments.