Backlash-Free Power Transmission: Mechanical Keyless Shaft Hub Clamping Assembly

The Apexcoupling Mechanical Keyless Shaft Hub Connection Locking Device series provides an advanced friction-locking solution engineered to eliminate the backlash, key-wall fretting, and stress concentration common in traditional keyed shafting setups. Functioning as a high-integrity clamping sleeve, this keyless locking device is used to realize torque transfer with a load, securely clamping gears, sprockets, pulleys, and flywheels onto smooth transmission shafts. By establishing an interference fit over the entire circumference of the shaft, it provides a balanced, uniform distribution of mechanical forces, shielding connected high-value components from alignment runout and premature rotational failure.

As outlined in the technical attribute profile in S45C steel power lock, these rigid, standard Straight Type assemblies are manufactured from premium S45C high-carbon steel. They employ a dependable Double Cone Type + Mechanical Type (Wedge Type) tightening method, where tightening the integrated locking screws draws two tapered rings together. This wedge action generates a massive radial clamping force, securing the connection with an exceptional allowable torque range from 250 up to an enormous 20,000,000 N·m.

Core Product Advantages / Unique Selling Points

• Zero-Backlash Keyless Performance: Eliminates keyways entirely, preventing key wall deformation and rotational play during rapid direction reversals or high-vibration stop-start cycles.

• Premium S45C Carbon Steel Core: Precision-machined from high-grade S45C steel body material to ensure superior yield strength and resistance to radial deformation.

• Double Cone Wedge Mechanics: Utilizes a highly reliable Double Cone Type Mechanical Wedge design that expands the outer ring into the hub bore while contracting the inner ring onto the shaft.

• Massive Scalable Torque Envelope: Engineered to confidently support demanding continuous industrial operations, with a torque range scaling from 250 N·m up to 20,000,000 N·m.

• Broad Sizing Adaptation Scale: Accommodates extensive industrial applications with scalable Inner Hole Diameters from 18mm to 1000mm and Outer Diameters from 47mm to 1110mm.

• High Velocity Rotational Rating: Standard balanced configurations operate smoothly up to continuous operational speeds of 3000 RPM.

• Simple Axial and Angular Alignment: Because there are no fixed keyways, components can be infinitely adjusted and timed radially and axially during the assembly process.

• Comprehensive OEM / ODM Technical Support: Sourced directly from our advanced facility in Dong Guan, Guangdong, China, under strict ISO9001 compliance with full OEM, ODM, and OBM options.

Technical Specifications Table