Epiroc 3115027400 Drive Gear for COP 1838/1842 Drifter | Rock Drill Rotation Gear

High-Precision Rotation Drive Component for Hydraulic Drifters

Genuine Epiroc Drive Gear (Part# 3115027400) is the core component responsible for transmitting rotation torque from the rotation motor to the drill string in COP 1838 and 1842 series hydraulic drifters. This precision-machined gear ensures smooth and powerful rotation under extreme loads, which is essential for efficient drilling and rod handling.

Technical Specifications & Features:

• ⚙️ Compatible Drifter Models: Epiroc COP 1838, COP 1840, COP 1842, COP 1842HE
• 🔧 Material: High-grade case-hardened alloy steel (e.g., 20CrMnTi)
• ⛓️ Heat Treatment: Carburizing and quenching process for a hard, wear-resistant surface and a tough, impact-resistant core.
• 🛡️ Surface Hardness: 58-62 HRC (Tooth surface)
• 📏 Core Hardness: 30-40 HRC (For toughness and shock resistance)
• 🧰 Manufacturing Standard: CNC machined to OEM original specifications with precise tooth profile and pitch.
• 📊 Gear Profile: Involute spline design for optimal torque transmission and engagement.

Key Functions & Benefits:

Compatibility & Application:

• Primary Application: Epiroc COP 1838, 1840, 1842, and 1842HE series hydraulic drifters.
• Fits various drill rigs equipped with these drifters, such as Boomer L2D, D7, and other jumbos.
• Meshes with the rotation motor pinion and drives the chuck assembly.

⚠️ Important Notice & Installation Tip:

Replacing a worn drive gear is a critical repair. Always inspect and replace mating components to ensure longevity:

• Inspect the Pinion Gear: Worn drive gear teeth will cause corresponding wear on the rotation motor’s pinion gear. Always inspect and replace both if necessary.
• Check Bearings and Bushings: Worn support bearings can cause misalignment, leading to uneven wear and premature gear failure.
• Use Recommended Lubrication: Ensure the gear chamber is filled with the correct type and grade of grease to reduce wear and dissipate heat.

A failed drive gear will result in a complete loss of rotation, halting drilling operations.