KOBELCO SK135SRLC-2 SK140SRLC SK140SR Excavator Final Drive Nabtesco GM21VA-A Original Travel Motor YY15V00015F1 YY53D00006F1 YY53D00007F1 YY15V00015F1
Price:
Negotiation
MOQ:
1 PCS
Delivery Time:
3-7 Day
Brand:
Belparts
Product Description
| Pos. | Part No | Qty | Parts name |
|---|---|---|---|
| . | YY15V00015F1 | 1 | MOTOR |
| 1 | YY15V00015S001 | 1 | HUB |
| 2 | YY15V00015S002 | 1 | PIN |
| 3 | NA | 1 | NOT SERVICED |
| 4 | YY15V00015S004 | 1 | SUN GEAR |
| 5 | NA | 3 | NOT SERVICED |
| 6 | NA | 3 | NOT SERVICED |
| 7 | NA | 1 | NOT SERVICED |
| 8 | YY15V00015S008 | 1 | SUN GEAR |
| 9 | NA | 3 | NOT SERVICED |
| 10 | NA | 3 | NOT SERVICED |
| 11 | NA | 6 | NOT SERVICED |
| 12 | NA | 6 | NOT SERVICED |
| 13 | YN15V00037S013 | 1 | PLATE |
| 14 | YY15V00015S014 | 1 | COVER |
| 15 | YY15V00015S015 | 1 | COUPLING |
| 16 | NA | 3 | NOT SERVICED |
| 17 | NA | 3 | NOT SERVICED |
| 22 | YY15V00015S022 | 2 | WASHER |
| 23 | YY15V00015S023 | 1 | SHIM |
| 24 | YY15V00015S024 | 2 | BALL BEARING,0.1" ID |
| 27 | NA | 3 | NOT SERVICED |
| 28 | NA | 3 | NOT SERVICED |
| 29 | NA | 2 | NOT SERVICED |
| 30 | 2441U995S121 | 3 | PLUG |
| 31 | ZD12P01800 | 3 | O‑RING |
| 32 | YY15V00015S032 | 1 | O‑RING |
| 33 | ZD12P00700 | 2 | O‑RING,1.6mm Thk x 6.8mm ID,90 Duro |
| 35 | ZS23C10035 | 12 | SCREW,Hex Socket Head,M10 x 35mm |
| 36 | ZR16X02200 | 1 | RING |
| 102 | YY15V00015S102 | 1 | SHAFT |
| 103 | YY15V00015S103 | 1 | PLATE |
| 104 | NA | 1 | NOT SERVICED |
| 105 | NA | 9 | NOT SERVICED |
| 106 | NA | 9 | NOT SERVICED |
| 107 | YY15V00015S107 | 1 | PLATE |
| 108 | YY15V00015S108 | 1 | BALL |
| 109 | YY15V00015S109 | 1 | PLATE |
| 110 | 2441U532S110 | 2 | WASHER |
| 112 | YY15V00015S112 | 1 | PISTON |
| 113 | LF15V00002S113 | 10 | SPRING |
| 114 | YY15V00015S114 | 1 | SPRING |
| 115 | YY15V00015S115 | 3 | PLATE |
| 116 | YY15V00015S116 | 4 | PLATE |
| 132 | YY15V00015S132 | 1 | OIL SEAL |
| 135 | LF15V00002S141 | 1 | O‑RING |
| 139 | YY15V00015S139 | 1 | O‑RING |
| 145 | 2441U815S145 | 1 | SNAP RING |
| 149 | YY15V00015S149 | 1 | BALL BEARING,0.1" ID |
| 150 | YY15V00015S150 | 1 | BALL BEARING,0.1" ID |
| 151 | YY15V00015S151 | 3 | ROLLER |
| 161 | NA | 1 | NOT SERVICED |
| 162 | NA | 1 | NOT SERVICED |
| 167 | YY15V00015S167 | 2 | PIVOT |
| 171 | YW15V00005S171 | 2 | PIN |
| 185 | YY15V00015S185 | 1 | SPRING |
| 301 | NA | 1 | NOT SERVICED |
| 341 | 2441U815S141 | 1 | PIN |
| 354 | PY15V00006S154 | 5 | PLUG |
| 357 | 2441U995S121 | 1 | PLUG |
| 359 | ZD12P01800 | 1 | O‑RING |
| 363 | YY15V00015S363 | 1 | PISTON |
| 366 | YY15V00015S366 | 1 | SPRING |
| 376 | NA | 1 | NOT SERVICED |
| 377 | 2441U1065S379 | 1 | HYDRAULIC MOTOR |
| 399 | PH15V00009S299 | 1 | LABEL |
| K. | YY15V00015R400 | 1 | REPAIR KIT |
| K. | YY15V00015R410 | 1 | REPAIR KIT |
| K. | YY15V00015R420 | 1 | REPAIR KIT |
| K. | YY15V00015R430 | 1 | REPAIR KIT |
| K. | YY15V00015R440 | 1 | REPAIR KIT |
| K. | YY15V00015R450 | 1 | REPAIR KIT |
| K. | YY15V00015R460 | 1 | REPAIR KIT |
| K. | YY15V00015R470 | 1 | REPAIR KIT |
Original Nabtesco GM21VA Integrated Final Drive Travel Motor Assembly with Gearbox YY15V00015F1 YY53D00006F1 YY53D00007F1 for Kobelco SK135SRLC‑2 SK140SRLC SK140SR Excavator
1. OEM Part Number & Machine Compatibility
- Original travel motor model: Nabtesco GM21‑VA two‑speed integrated final drive (hydraulic travel motor + 2‑stage planetary reduction gearbox)
- Kobelco OEM interchange part numbers: YY15V00015F1, YY53D00006F1, YY53D00007F1
- Fully compatible excavator models: Kobelco SK135SRLC‑2, SK140SRLC, SK140SR
- All listed part numbers are supersession iterative codes for the same complete assembly; unified mounting flange pattern, sprocket hub interface, hydraulic A/B feed & drain ports and internal hydraulic calibration. Genuine original unit supports direct bolt‑on replacement, no modification to track frame or hydraulic pipelines required.
2. Core Technical Specifications
- Structure type: Two‑speed variable displacement hydraulic travel motor (Stage 1: Low Speed High Torque / Stage 2: High‑Speed Travel) + two‑stage planetary reduction gear reducer
- Dual motor displacement: 45 / 76 cm³/rev
- Total gear reduction ratio: 54
Second‑Stage High‑Speed Working Parameters
- Rated working pressure: 32.0 MPa
- Maximum relief pressure: 34.8 MPa
- Rated operating speed: 2 450 rpm
- Rated input power: 43.5 kW
- Max output climbing torque: 20 600 N·m
- Dual travel speed range: 28‑52 rpm, perfectly matched to factory hydraulic system for 13‑14 ton Kobelco short‑tail swing excavator platform
- Mounting PCD, sprocket fit dimension and oil port layout strictly follow Kobelco OEM drawing specifications
- Motor and gearbox housing made of high‑strength ductile iron; internal pistons, valve plate, planetary gears, carrier and heavy‑duty bearings adopt quenched wear‑resistant alloy steel for urban construction and rough‑site operations.
3. Internal Structure & Functional Introduction
- Dual‑displacement travel motor offers two working modes: low‑speed high‑torque mode for slope climbing, muddy terrain and heavy digging; high‑speed mode for fast flat‑ground machine relocation.
- Built‑in multi‑disc spring‑applied hydraulic‑release mechanical parking brake, prevents track sliding on inclined ground when travel control is released.
- Two‑stage compact planetary gear set amplifies hydraulic torque to drive track sprocket, delivering stable continuous power output under heavy‑load conditions.
- Integrated anti‑cavitation valve and built‑in shock relief valve absorb hydraulic pressure spikes during compound movements, protecting internal core components from impact damage.
- Compact integrated layout is optimized for short‑tail swing undercarriage of SK135SRLC‑2 / SK140SRLC / SK140SR models.
4. Product Advantages
- Genuine original Nabtesco complete assembly, 1:1 OEM dimension, plug‑and‑play installation without cutting or reworking hoses, track frame or mounting brackets.
- Every original final drive passes full factory hydraulic bench test before shipment: two‑speed shift test, pressure stability test, internal leakage test and brake holding torque verification.
- Full overhaul spare parts are available: floating seal, piston shoe assemblies, swash plate, valve plate, planetary gear sets, carrier, bearings and full seal repair kits for component‑level maintenance.
- Multiple cross‑reference OEM numbers cover three short‑tail excavator models, simplify order processing, stock classification and inventory management for dealers and repair workshops.
- Standard 12‑month full warranty for original unit, performance consistent with factory‑fitted travel motor assembly.
5. Packaging & Global Delivery Details
- Oil ports and output spline shaft coated with anti‑rust grease and fitted with dust‑proof protective plugs.
- Complete final drive wrapped with moisture‑proof plastic film and secured in export‑grade solid wooden crate to avoid collision and damp corrosion during sea or air long‑haul transit.
- In‑stock original units can be dispatched within 3‑5 working days after order confirmation.
- Multiple shipping options available: international air express, sea LCL bulk shipment, overland truck transport for global construction machinery markets.
6. FAQ
-
Q: Are YY15V00015F1, YY53D00006F1, YY53D00007F1 mutually interchangeable?
A: Yes, these are iterative supersession part numbers for Nabtesco GM21VA final drive assembly, fully cross‑replaceable for Kobelco SK135SRLC‑2, SK140SRLC, SK140SR.
-
Q: Does this original travel motor fit directly on all listed Kobelco short‑tail excavators?
A: Yes, unified OEM mounting dimensions and factory‑calibrated hydraulic parameters support direct bolt‑on installation without extra adjustment or modification.
-
Q: What is the relation between GM21VA and these Kobelco OEM part numbers?
A: GM21VA is Nabtesco original travel motor model code; YY15V00015F1, YY53D00006F1, YY53D00007F1 are Kobelco‑assigned OEM part numbers for this full final‑drive assembly.
-
Q: Are separate overhaul spare parts available for GM21VA final drive?
A: Matching full seal kits, piston shoe assemblies, valve plates, swash plates, planetary gear carriers and floating seal spare parts are available for partial overhaul and single‑component replacement work.
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Company
BELPARTS MACHINERY LIMITED
Location
429-432,No.268 Zhongshan Avenue East,Huangpu District,Guangzhou
Contact Person
Ron