The 86746443 Shank Rotation Drive is a core power transmission component for the Montabert HC95 rock drill, serving as the critical interface between the hydraulic motor and the drill bit shank. This precision-engineered gear transfers high-torque rotary power to the drill bit, enabling efficient rotary cutting while withstanding the extreme vibration and impact loads of hard-rock drilling.

Manufactured to Montabert’s exact factory specifications, this rotation drive guarantees a seamless drop-in fit with the HC95’s gearbox and splined shank assembly, preserving torque transmission efficiency and operational stability. In harsh mining, tunneling, and quarrying environments—where dust, moisture, and heavy loads are constant—it resists wear and fatigue, directly extending the service life and reliability of your Montabert rock drill.

• Genuine Montabert Precision for Perfect HC50 Compatibility
• High-Impact Durability for Mining Operations
• Hydraulic Sealing & Debris Protection
• Optimized Design for Maintenance Efficiency

The 86746443 Shank Rotation Drive is an indispensable replacement part for your Montabert rock drill in all core operational scenarios:

• Transmitting rotary torque to Montabert HC95 rock drills during underground mining blasting hole drilling (up to 40m depth) in hard-rock formations like granite and basalt.
• Driving the rotary system of Montabert HC95 rock drills used for tunnel anchor and support hole drilling in wet, dusty infrastructure construction projects.
• Maintaining rotational power in Montabert HC95 rock drills during quarrying applications for stone cutting, rock excavation, and pre-splitting tasks.
• Restoring factory-spec torque transmission during full overhauls or gearbox replacement of Montabert rock drills.