Sandvik 154 194 08 Gear Wheel — The Rotational Core of Your HLX5 Drifter Gearbox
When your Sandvik hydraulic drifter is drilling, it’s doing two things simultaneously: hammering and rotating. The percussion system gets most of the attention — but without a precisely engineered rotation gearbox transferring torque from the hydraulic motor to the drill rod, your bit goes nowhere. The Sandvik 154 194 08 Gear Wheel is the critical gearbox component that makes that rotation happen — smoothly, consistently, and under relentless load, shift after shift.
This gear wheel is an OEM-grade spare part designed specifically for the Sandvik HLX5 hydraulic rock drill drifter — one of the most widely used and trusted drifters in underground mining and tunneling worldwide. It sits within the gearbox assembly alongside the rotating shaft and coupling driver, transmitting torque from the hydraulic rotation motor to the drill sleeve and ultimately to the drill rod and bit. When this component is in good condition, your rotation is clean and controlled. When it’s worn, you start to feel it in the bit behaviour, the rod wear, and eventually, in a failed gearbox rebuild.
Purpose-Built for the Sandvik HLX5 and Compatible Drifters
In the official Sandvik HLX5 parts list, the 154 194 08 Gearwheel appears as item 16 within the drifter assembly, positioned between the bronze coupling driver and the rotating shaft — the core mechanical chain of the gearbox rotation system. Resequip
The HLX5 is the most popular Sandvik rock drill on the market, chosen for its exceptional durability and reliability, and is the standard drill in Sandvik hydraulic jumbo rigs for face drilling, bolt hole drilling, and long hole drilling. Delkom Export Given how widely deployed the HLX5 is, the 154 194 08 Gear Wheel is one of the most in-demand gearbox components across underground mining and tunneling fleets globally.
The HLX5 operates at a 20 kW power class with a percussion rate of 67 Hz and is compatible with OMS80, OMS100, and OMS125 rotation motors Tunnels — all of which rely on this gear wheel to translate hydraulic motor output into controlled drill string rotation.
Key Features & Specifications
- Part Number: 154 194 08 / 15419408
- Brand: Sandvik / Tamrock (OEM / OEM-equivalent grade)
- Component Type: Gear Wheel (Gearwheel)
- Assembly Location: Gearbox / Rotation assembly — item 16 in HLX5 drifter parts list
- Function: Transmits torque from hydraulic rotation motor to rotating shaft and drill string
- Compatible Drifter: Sandvik HLX5 hydraulic rock drill and compatible Tamrock/Sandvik drifter series
- Compatible Rotation Motors: OMS80, OMS100, OMS125
- Application: Underground mining, tunneling, face drilling, bolt hole drilling, long hole drilling
- Operating Environment: Jumbo drill rigs — underground development and production headings
- Availability: Worldwide shipping
A Worn Gear Wheel Costs More Than a New One
Gearbox components like the 154 194 08 Gear Wheel wear gradually. Early signs include slight play in the drill sleeve, inconsistent rotation speed, or unusual noise from the gear housing. Left unchecked, a worn gear wheel accelerates wear on the rotating shaft, bearings, and coupling — turning a low-cost replacement into a full gearbox rebuild or a drifter exchange. Proactive replacement of the gear wheel at first signs of wear is one of the simplest ways to protect a far more expensive assembly. Keep a spare on your shelf, schedule it into your drifter service program, and keep your rotation system performing the way Sandvik designed it to.
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