The YNF03427 Flange Coupling Gear Hub (42×16T) is a precision-machined transmission component designed for flexible couplings in construction machinery and industrial drive systems. With an inner diameter range of 30–35 mm, outer diameter of 110 mm, and height of 55 mm, this gear hub ensures accurate alignment, stable torque transmission, and reduced vibration. Manufactured from high-strength alloy steel with surface treatment, it delivers reliable performance and extended service life in demanding operating conditions.

• Model: YNF03427 flange coupling gear hub

• Gear specification: 42 × 16 teeth

• Dimensions: ID 30–35 mm, OD 110 mm, H 55 mm

• High-strength alloy steel construction

• Precision machining for accurate fit and smooth power transfer

• Wear-resistant surface treatment for long service life

• OEM-equivalent design for easy replacement and assembly

• Flexible coupling systems in excavators and construction machinery

• Engine-to-pump or motor-to-pump drive connections

• Hydraulic pump coupling assemblies

• Industrial power transmission systems requiring gear hubs

• Coupling model and dimension verification before order

• Technical support for installation and application selection

• Supply of complete coupling assemblies, rubber elements, and related hubs

• Custom dimensions and drawings support upon request

• Anti-rust oil or coating applied before packing

• Individually packed with protective foam

• Export-grade cartons or wooden cases for bulk shipments

• Suitable for express, air, or sea transportation

Q: How can I confirm this gear hub fits my coupling?
A: Please provide your coupling model, shaft diameter, or photos with dimensions, and we will confirm compatibility.

Q: Is this gear hub heat-treated?
A: Yes, it is manufactured with heat treatment to improve strength and wear resistance.

Q: Can this be used to replace OEM coupling hubs?
A: Yes, it is designed to OEM-equivalent standards and can directly replace original parts.

Q: Do you supply complete flange coupling sets?
A: Yes, we can supply complete coupling assemblies, including hubs and rubber elements.