Import Constant Filling Fluid Couplings — Buy in Bulk from Supplier in China

Constant filling fluid couplings are mechanical devices used to connect rotating shafts between减速机 and electric motors, enabling torque transmission with minimal backlash. This coupling type inserts the motor shaft directly into the reducer’s bore, with a plum blossom elastic element (per GB5272-85) absorbing vibration and misalignment. The design is compact, with no external fasteners, and is typically used in small to medium industrial gearboxes where space is limited and alignment precision is critical.

The coupling requires precise input dimensions: the motor shaft diameter (d1) and length (L1), and the reducer shaft diameter (d2) and length (L2). These measurements must be provided by the buyer; otherwise, the supplier defaults to standard sizes listed in their internal reference table. The housing is cast iron or steel, and the elastic element is typically polyurethane or rubber, selected for fatigue resistance under continuous operation. No surface coating or special treatment is specified in the source, so standard industrial finish applies.

These couplings are commonly purchased by manufacturers of small conveyor systems, packaging machinery, and agricultural equipment in Southeast Asia and Eastern Europe. They are shipped in wooden export crates, with no individual packaging per unit. Minimum order quantities are not stated, and lead time is unconfirmed. Buyers must supply exact shaft dimensions to avoid production delays. Incoterms and payment terms are not listed and require direct confirmation with the supplier.

Henan Modern Industrial Co., Ltd. is a manufacturer based in Zhengzhou, Henan Province, China, with a physical address on Huayuan Road. The company’s listing shows no verified certifications, no company history, and no client references. It operates as a factory supplier with no public website or third-party verification beyond its harbor-tier trust rating. The listing does not indicate export volume, workforce size, or production capacity.

The supplier specializes in mechanical transmission components, primarily couplings and shaft connectors for small industrial machines. There is no evidence of in-house R&D, testing equipment, or quality control documentation in the source data. Responses to buyer inquiries are not recorded, and no samples or inspection reports are mentioned. Buyers should request direct confirmation of dimensional accuracy and material compliance before placing orders.