Yamaha 15HP Forward Gear: Independent Carburizing Hardness & Metallographic Report At Ningbo Gill Transmission Parts Co., Ltd., we know that outboard motor gears face constant high torque, vibration, and saltwater corrosion. Insufficient surface hardness or poor case depth often leads to rapid wear

Established in 1997, Ningbo Gill Transmission Parts Co., Ltd. is located in Ningbo, Zhejiang Province, covering over 25,000 square meters of modern production facilities. With more than two decades of experience in marine gear manufacturing, we specialize in producing high-precision outboard lower u

In March 2025, Ningbo Gill Transmission Parts Co., Ltd. participated in THE 28th China Shanghai International Boats Show (THE 28th CIBS), one of Asia’s premier marine industry events. The exhibition gathered suppliers, distributors, and marine enthusiasts from around the world, providing a perfect p

Compare splined drive shafts and keyed drive shafts for marine transmission systems. Learn how torque capacity, fatigue resistance, axial movement, cost, corrosion protection, maintenance, alignment, and hub design affect selection. Find practical guidance for choosing a custom marine drive shaft.

Looking for where to buy Mercury outboard parts near you? Learn how to identify the correct part by serial number, compare authorized dealers, repair shops, online retailers, and manufacturers, and source reliable lower-unit gears, drive shafts, propeller shafts, and more.

Compare stainless steel and carbon steel drive shafts for marine use—corrosion resistance, strength, cost, and maintenance. Backed by 29 years of manufacturing expertise, this guide helps you choose the right shaft material for saltwater durability and long-term performance.

Compare solid and hollow drive shafts for marine applications — torsional strength, weight, critical speed, corrosion resistance, and classification society standards, backed by 29 years of manufacturing insight from Ningbo Gill Transmission Parts.

Still hunting for Johnson outboard parts? Discover where to find genuine, aftermarket, and remanufactured components in 2026, plus expert tips on identifying the right part for your engine and solving hard-to-find lower unit and gearcase issues.

Discover what are the parts of an outboard motor with this expert breakdown of the powerhead, midsection, and lower unit. Includes maintenance checklists, material insights, and manufacturing perspective from 29 years of marine transmission parts production at Ningbo Gill.