Transmissão final YA60000958 para escavadora Hitachi ZX670LC-5B ZX670LCH-5B ZX670LC-5G ZX670LCH-5G ZX670LCR-5G ZX670
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Contactos do vendedor
+86 199 246...
+86 199 2461 6345
China
China
China
Países Baixos, Wouw
Países Baixos, Wouw
Países Baixos, Wouw
1. OEM Part Number & Machine Compatibility
Original travel motor model: Hitachi HMGC90 two-speed integrated final drive (hydraulic travel motor + 3-stage reinforced planetary reduction gearbox)
Hitachi OEM interchange part numbers: YA60000958, 4641493, 9254462, 4688059
Fully compatible heavy mining excavator models: Hitachi ZX670, ZX670LC-5B, ZX670LCH-5B, ZX670LC-5G, ZX670LCH-5G, ZX670LCR-5G
All four serial numbers are iterative supersession upgrade codes, unified heavy-duty mounting flange bolt layout, thickened sprocket hub interface, hydraulic A/B feed & drain port layout and internal hydraulic calibration; fully cross-replaceable direct bolt-on aftermarket replacement without track frame or hydraulic pipeline modification
2. Core Technical Specifications
Structure type: Two-speed variable displacement hydraulic travel motor (Stage 1: Low Speed High Torque / Second Stage: High-Speed Travel) + three-stage thickened planetary reduction gear reducer
Dual motor displacement: 76 / 120 cm³/rev
Total gear reduction ratio: 39
Second Stage Specified High-Speed Travel Parameters
Rated working pressure (second stage): 34.0 MPa
Maximum relief pressure (second stage): 36.0 MPa
Rated operating speed (second stage): 2600 rpm
Corresponding rated input power (second stage): 70.5 kW
Max output climbing torque: 41500 N·m
Dual travel speed range: 23~41 rpm, perfectly matched to factory hydraulic system of 67-ton Hitachi heavy mining excavator platform
Mounting PCD, reinforced large sprocket tooth size, oil port position strictly conform to Hitachi OEM dimensional drawings
Gearbox & motor casing adopt ultra-thick high-strength ductile iron; internal pistons, valve plates, oversized planetary gears, carrier and heavy-load roller bearings use quenched wear-resistant alloy steel to withstand long-term mining, rock breaking and bulk material loading operations
3. Internal Structure & Functional Introduction
Dual-displacement travel motor provides two working modes: Stage 1 low-speed high torque for muddy terrain, ultra-steep slope climbing, hard rock excavation and heavy bulk material loading; Second-stage high-speed mode for flat ground fast transfer
Built-in oversized multi-disc spring-applied hydraulic release mechanical parking brake, reliable locking performance on steep slopes to prevent track sliding under full mining load
Three-stage thickened reinforced planetary reduction gear set greatly amplifies hydraulic motor torque to drive heavy track sprocket, stable continuous power output under long-time heavy digging and mining loads
Integrated built-in anti-cavitation valve and double shock relief valve to buffer violent hydraulic pressure surges, effectively protect motor core components from impact damage during composite working actions
Heavy-duty integrated final drive layout fits perfectly inside the reinforced heavy track frame space of all ZX670 series -5B/-5G generation excavator variants
4. Product Advantages
Standard aftermarket replacement, 1:1 OEM thick casting outer dimensions, plug-and-play installation, no cutting or reworking of hydraulic pipelines, track frame or mounting brackets
Every finished aftermarket final drive passes full hydraulic bench inspection before shipment, including two-speed switching test, high-pressure stability test, internal leakage test and heavy-load brake holding torque verification
Complete overhaul spare parts in stock: heavy-duty floating seal, piston shoe assemblies, swash plate, valve plate, thickened planetary gear sets, carrier, oversized bearings and full seal repair kits for independent component replacement during maintenance
Four interchangeable OEM numbers cover six machine variants, greatly simplifying spare part ordering, stock classification and inventory management for mining machinery dealers and large repair workshops
Standard 12-month full warranty for aftermarket unit, stable performance matching genuine original Hitachi HMGC90 travel motor assembly
5. Packaging & Global Delivery Details
Motor oil ports and large output spline shaft coated with anti-rust grease and sealed with dust-proof protective plugs
Whole heavy final drive wrapped with thick moisture-proof plastic film and fixed inside reinforced export-grade solid wooden crate with steel brackets to avoid collision and damp corrosion during long-distance sea or air transportation
In-stock aftermarket units can be dispatched within 3–5 working days after order confirmation
Multiple global shipping solutions available: international air express, sea LCL/FCL bulk shipment, overland truck transport for Southeast Asian, North American and global mining markets
6. FAQ
Q: Are YA60000958, 4641493, 9254462, 4688059 mutually interchangeable?
A: Yes, all four part numbers are iterative replacement codes for the same HMGC90 final drive assembly, fully cross-replaceable for all listed Hitachi ZX670 series -5B/-5G excavators.
Q: Can this travel motor install directly on all listed Hitachi heavy excavators?
A: Yes, unified heavy-duty mounting size and factory-matched two-speed hydraulic calibration enable direct bolt-on fitting for ZX670, ZX670LC-5B, ZX670LCH-5B, ZX670LC-5G, ZX670LCH-5G, ZX670LCR-5G without extra adjustment or modification work.
Q: What is the relation between HMGC90 and these Hitachi OEM part numbers?
A: HMGC90 is the official Hitachi original travel motor model designation, while YA60000958, 4641493, 9254462 and 4688059 are exclusive OEM split part numbers assigned by Hitachi for this complete heavy-duty final drive assembly.
Q: Are separate repair spare parts available for this final drive?
A: Matching full overhaul seal kits, piston shoe assemblies, valve plates, swash plates, thickened planetary gear carriers and heavy-duty floating seal spare parts are all available for partial overhaul and single component replacement work.