Full OEM Interchangeability 1:1 identical flange, oil circuit and mounting dimensions, directly replace original BG00787722 / 55094670 without modification, fit DX500/DX600/DX700/DX780/DX800I/DX800R drill rigs perfectly.

Heavy Load & High Torque Performance 3-stage carburized hardened planetary gears, 190kN·m rated output torque, stable power output for steep slope and heavy mining transportation.

Integrated Reliable Wet Brake Built-in multi-disc wet parking brake, spring lock & hydraulic release, effectively prevent rig sliding during drilling standby for higher operation safety.

Dual-Speed Travel Hydraulic System Matched with 55159914 two-speed travel motor, switchable low-speed high traction / high-speed transfer mode to adapt complex quarry terrain.

Modular Split Design 55159915 reducer and 55159914 motor can be maintained or replaced separately, greatly reduce overall maintenance cost.

Excellent Dust & Mud Resistance Dual-layer floating oil seal + skeleton oil seal structure, block mine sewage and rock dust intrusion, lower leakage failure rate.

Stable Supply & Quality Guarantee XLF Hydraulic independent production, sufficient inventory, 12-month warranty, fast sea/air delivery available.

Q: Which drill rigs fit this final drive assembly?

A: Part BG00787722 (replaces OEM 55094670) is exclusively built for Sandvik DX series surface drill rigs: DX500, DX600, DX700, DX780, DX800I, DX800R.

Q: Direct OEM interchangeable?

A: Yes. Mount flange, bolt hole layout, hydraulic port position, internal spline and overall dimensions match original OEM unit 1:1, plug-and-play replacement without any cutting or adapter modification.

Q: Key technical specs?

A: Rated working pressure 32 MPa, peak pressure 38 MPa; max output torque range 190–235 kN·m. It adopts integrated 3-stage carburized hard-tooth planetary transmission with built-in multi-disc wet parking brake.

Q: Split parts compatibility?

A: The full assembly consists of 55159915 planetary reducer and 55159914 dual-speed travel motor. Reducer and motor can be purchased, replaced and repaired separately, fully compatible with original single components.

Q: Stable mining traction performance?

A: Precisely ground 20CrMnTi alloy planetary gears reduce friction and abrasion, delivering steady low-speed high torque to handle long-hour open-pit drilling, steep slope climbing and frequent rig tram movement.

Q: Heavy-duty upgraded options available?

A: Optional reinforced thickened gear sets, multi-layer fluorine rubber floating seal assemblies and heavy-duty roller bearings for dusty, muddy, high-overload quarry mining working conditions.

Q: Recommended lubricant & maintenance cycle?

A: SAE 90 GL-4 extreme pressure heavy-duty gear oil. Check oil level and sealing conditions daily; fully drain and replace gear oil every 2000 working hours under mine dust and mud environment.

Q: Troubleshoot leakage & overheating?

A: Retighten mounting bolts for slight oil seepage; replace complete seal kit for severe leakage. Overheating is usually caused by deteriorated lubricant, insufficient oil volume or worn internal gears. Follow official maintenance manuals, unauthorized private disassembly is not advised.

Q: Warranty terms?

A: 12-month factory warranty. Free technical support and free replacement of damaged spare parts for non-artificial failures under standard operating conditions.