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{"title":"Hitachi Construction Machinery ZX850-5G EXCAVATORS FINAL DRIVE ASSEMBLY FINAL","imgUrl":"https:\/\/img.chinax.com\/nimg\/fe\/2f\/3388ba09ed998f0b488488d4b017-200x200-1\/hitachi_construction_machinery_zx850_5g_excavators_final_drive_assembly_final.jpg","attrs":{"Payment Terms":"Western Union,T\/T","Model Number":"Hitachi Construction Machinery ZX850-5G Final Drive Unit YB60000031","Applicable Industries\uff1a":"MECHANICAL REPAIR SHOPS, RETAIL, CONSTRUCTION, ENERGY, MINING","Minimum Order Quantity":"1 PCS"}}
{"title":"High Quality SANY SY485 Excavator Hydraulic Travel Motor with Gearbox Replacemen","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/53\/b7269ae3b8b0688ec10c5d247073-200x200-1\/high_quality_sany_sy485_excavator_hydraulic_travel_motor_with_gearbox_replacement_part.jpg","attrs":{"Certification":"CE\u3001ISO","Brand Name":"IRON CAVALRY","Condition\uff1a":"NEW\/REBUILT","Delivery Time":"5-8 Weekdays"}}
{"title":"Final Drive M4V290\/170D GM85VA For SANY SY485 DOOSAN DX520 KOBELCO SK460","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/3f\/7f4ced34e75eea1397acebfa37fc-200x200-1\/final_drive_m4v290_2f170d_gm85va_for_sany_sy485_doosan_dx520_kobelco_sk460.jpg","attrs":{"Place of Origin":"China","Delivery Time":"5-8 Weekdays","Condition\uff1a":"NEW\/REBUILT","Payment Terms":"Western Union,T\/T"}}
{"title":"Use For Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/78\/4d8f00cb0f2c46c432cfec6b2c09-200x200-1\/use_for_hitachi_ex100_3_ex120_3_excavators_travel_assembly_9133168_9122946_final_drive_motor_gearbox_device_high_quality_construct.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final Drive Motor Gearbox Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy Duty Final Drive Complete Travel Motor Assembly 144-5196 for TQCAT 301 301","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/54\/918d4c1741f8d46c30063c9aff43-200x200-1\/heavy_duty_final_drive_complete_travel_motor_assembly_144_5196_for_tqcat_301_301_5_301_6_mini_crawler_excavator_premium.jpg","attrs":{"Packaging Details":"Wooden case or as required","Brand Name":"IRON CAVALRY","Payment Terms":"Western Union,T\/T","Supply Ability":"300pcs \/Month"}}
{"title":"Use For CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/fd\/cd3ef1342be0020671efe4978c2e-200x200-1\/use_for_cat_349d2_352f_349e_349f_excavators_travel_assembly_513_0982_513_0981_513_0979_518_1211_527_7097_final_drive_assembly_devi.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981 513-0979 518-1211 527-7097 Final Drive Assembly Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422 |","imgUrl":"https:\/\/img.chinax.com\/nimg\/f8\/71\/2da7df3af892c05ce1fb803b9872-200x200-1\/heavy_duty_final_drive_motor_fits_komatsu_pc220_7_pc220lc_7_7c_206_27_00422_7c_rugged_earthmoving_traction_assembly.jpg","attrs":{"Applicable Industries\uff1a":"MECHANICAL REPAIR SHOPS, RETAIL, CONSTRUCTION, ENERGY, MINING","Brand Name":"IRON CAVALRY","Model Number":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422","Price":"Negotiable price"}}
Hitachi Construction Machinery ZX850-5G Excavators Final Drive Assembly
The Travel Motor / Final Drive Assembly (Part No. RB511-61290) for the Kubota U25 mini excavator is a compact, high-torque propulsion unit engineered for light-to-medium construction, residential development, landscaping, and utility work in the 2.5-ton machine class. This assembly integrates a high-efficiency axial piston hydraulic motor with a precision multi-stage planetary reduction gearbox, delivering reliable tractive effort and smooth travel performance across a wide range of job site conditions.
Product Specifications
Product Name
Komatsu 22J-60-25401 PC18MR Final Drive
Part Number
Komatsu 22J-60-25401
Compatible Machine
PC18MR
Brand
IRON CAVALRY
Place of Origin
CHINA
Condition
Original & OEM
Warranty
12 months
MOQ
1 piece
Production Capacity
1000 pieces per month
Standard or Nonstandard
Standard
Regional Application & Market Suitability
North America & Europe: Designed for confined urban construction, residential landscaping, and municipal utility work, with enhanced cold-weather sealing for reliable operation during winter months and consistent performance in wet conditions.
Southeast Asia & Oceania: Equipped with heavy-duty floating seals that resist ingress of abrasive mud, clay, and tropical soils common in drainage, foundation, and plantation projects in high-humidity environments.
Middle East & Africa: Reinforced housing and high-temperature seals protect against sand abrasion and thermal stress in arid desert conditions, ensuring dependable performance on dusty construction sites.
Key Features & Performance Advantages
Compact and Reliable Design: The axial piston motor delivers strong starting torque and smooth speed control, enabling efficient tracking on slopes, soft ground, and uneven terrain typical of mini excavator applications.
Precision Multi-Stage Reduction: The planetary gear set employs heat-treated alloy steel components manufactured to tight tolerances, ensuring even load distribution across contact surfaces and extended service intervals between overhauls.
Model-Specific Design for U25: Precision-engineered to match the specific mounting dimensions, hydraulic porting, and performance parameters of the Kubota U25 series, ensuring seamless integration with the machine's undercarriage and hydraulic system.
Robust Contamination Defense: Dual-cone floating seals combined with heavy-duty dust wipers provide comprehensive protection against moisture, mud, and debris ingress, ensuring reliable operation in wet, dusty, and muddy working environments.
Expert Maintenance Guidance
Hydraulic System Care: Routinely inspect case drain lines for restrictions, kinks, or blockages. A restricted drain line can generate excessive back pressure, potentially causing motor seal failure or rotary group damage. Always maintain clean hydraulic fluid and replace return filters according to the machine's prescribed service schedule.
Gear Oil Management: Fill the planetary housing with the recommended extreme-pressure gear oil of the correct viscosity grade. Change the oil every 250-500 operating hours under normal conditions, and every 250 hours in severe applications such as demolition, foundation work, or continuous heavy digging.
Mounting Bolt Integrity: When reinstalling the travel motor assembly, always fit new high-strength bolts. Apply a suitable thread locking compound to the bolt threads prior to torquing to factory specifications, preventing loosening caused by continuous vibration and shock loads during travel and digging operations.
Pre-Start Priming Procedure: Before initial startup or after final drive replacement, fill the motor housing with clean hydraulic oil to purge trapped air pockets. Run the machine at low idle for several minutes, cycling the tracks forward and reverse, to ensure complete lubrication of all planetary components before engaging heavy operational loads.
Manufacturing Facility
Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District. With nearly 15 years of experience, we specialize in engineering machinery hydraulics and are committed to delivering practical solutions.
Manufacturing Facility Exterior
Factory Production Line
Trade Show Exhibition
Professional Team
Packaging & Delivery
For large items, we use sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention given to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof wrapping.
Secure Product Packaging Example
Why Choose IRON CAVALRY?
One-stop solution provider for all hydraulic component needs
High-quality products at competitive prices
Exceptional customer service and support
Large inventory, short delivery times, and long warranty periods
Professional expertise with accurate part number identification
