PH15V00012F1 Final Drive For Kobelco SK50SR-3 SK50SR-5 50SR-3 50SR-5 SK55SRX CASE CX50B CX55BMSR New Holland E50 E50SR E50BSR E55BX EH50.B E50B Travel Motor
Final Drive for Kobelco SK50SR-3
,Travel Motor for CASE CX50B
,Final Drive for New Holland E50SR
PH15V00012F1 Final Drive for Kobelco SK50SR-3 SK55SRX CASE CX50B New Holland E50B | Travel Motor
Heavy 6300 N·m Torque & 12-Bolt 230mm Sprocket Fitment for 5.0–6.0T Earthmovers. OEM-spec heavy-duty dual-displacement hydraulic travel motor complete with 47.5:1 planetary reduction gearbox, engineered specifically for 12-hole sprocket Kobelco SK50SR, CASE CX50B, and New Holland E50B mini excavators.
1. Technical Operating Specifications
(Authority verified via Kobelco & CNH EPC parts cross-reference & compact hydraulic databases)
| Engineering Parameter | Verified Metric Value |
|---|---|
| Universal OEM Part Number | PH15V00012F1 |
| Interchangeable Cross-Ref | PS15V00003F1, PW15V00018F1 |
| Compatible Machine Brands | Kobelco, CASE, New Holland (5.0–6.0 Ton Class) |
| Motor Drive Core Platform | Heavy-Duty 2-Speed Axial Piston Series |
| Displacement (Hi / Lo) | 19 / 34 mL/rev |
| Output Torque (Hi / Lo) | 3500 / 6300 N·m |
| Output Shaft Speed (Hi / Lo) | 55 / 30 rpm |
| Operating Circuit Pressure | 24.5 MPa |
| Rated Inlet Flow Rate | 50 L/min |
| Planetary Reduction Ratio | 47.5 : 1 (High-Torque Reduction) |
| Condition / Warranty | 100% Brand New / 12 Months |
2. Multi-Brand Model Fitment Cross-Reference
(Universal-fit PHV/TM travel assembly covering 11 major compact excavator models)
- Kobelco: SK50SR-3, SK50SR-5, 50SR-3, 50SR-5, SK55SRX
- CASE: CX50B, CX55BMSR
- New Holland: E50, E50SR, E50BSR, E55BX, EH50.B, E50B
3. Verified Undercarriage Fitment Dimensions
(Precision measurements for CNH / Kobelco 5-ton reinforced track frames)
| Mechanical Interface | Dimension Parameter | Installation Fitment Role |
|---|---|---|
| Chassis Frame Centering Diameter | 180 mm | Heavy-duty inner chassis locating register |
| Track Frame Bolt Pattern | 9 × φ14 mm | Reinforced M14 bolt circle for frame mounting |
| Drive Sprocket Centering Pilot (ID) | 230 mm | Heavy-duty 230 mm drive sprocket locating register |
| Drive Sprocket Bolt Pattern | 12 × φ14 mm | 12-bolt M14 pattern for high tractive shear resistance |
4. Resolving Kobelco SK50SR / CASE CX50B Track Fade & Hub Overfill
Is your 5-ton excavator lagging behind during heavy trench push, or is gear oil weeping past the drive sprocket? The 5-ton Kobelco and CASE zero-tail platforms demand a relentless 6300 N·m of tractive torque. Continuous heavy grading at 24.5 MPa subjects the 230 mm drive flange to severe cyclic bending loads. Over extended duty, high thermal stress hardens duo-cone floating seal rings, allowing pressurized hydraulic fluid to bleed across into the planetary reduction hub. This cross-contamination over-pressurizes the gear cavity and starves internal rotating pistons, dropping travel speed. Installing our precision-sealed PH15V00012F1 final drive restores full 24.5 MPa hydraulic containment, isolates lubrication circuits, and reinstates factory 6300 N·m breakout force.
5. Frequently Asked Questions (Technical & Commercial)
For Machine Owners & Operators (C-End Insights)
Q: Will this final drive bolt directly onto my CASE CX50B without changing the drive sprocket? A: Yes. Kobelco, CASE, and New Holland share identical undercarriage geometry for this 5-ton platform. The 180 mm chassis register (9-hole M14) and 230 mm sprocket pilot (12-hole M14) match factory specifications for an exact bolt-on replacement.
Q: What is the mandatory startup lubrication protocol before running this drive? A: Pre-fill the hydraulic motor casing with fresh ISO VG 46 fluid through the upper casing drain plug. Separately, fill the planetary gearbox with SAE 80W-90 extreme-pressure gear lubricant up to the horizontal oil level check plug before starting the engine.
For Equipment Dealers & Repair Facilities (B-End Insights)
Q: Does holding PH15V00012F1 in stock cover multiple dealer brand requests in our fleet? A: Yes. Because PH15V00012F1 serves as the universal factory travel drive across 11 major excavator models spanning Kobelco (SK50SR/SK55SRX), CASE (CX50B/CX55B), and New Holland (E50/E55), keeping one SKU in stock satisfies replacement demand across all three dealer networks.
Q: What is the export packaging and freight preservation standard? A: Each drive unit is internally treated with rust-inhibiting transit fluid, sealed inside heavy-gauge vapor corrosion inhibitor (VCI) poly barrier wrap, and bolted securely inside an ISPM-15 certified fumigated export wooden crate built for container and air cargo handling.
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