China Factory 203-4710 Travel Planetary Gearbox Replacement Road Compactor Spare Parts
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of china factory 203-4710 travel planetary gearbox replacement road compactor spare parts in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.
Specifications
| Type | 203-4710 Planetary Final Drive for Road Roller |
| Brand | XLF Hydraulic |
| Max Output Torque Range | 162000 N.m |
| Rated Working Pressure | 320 bar (32 MPa) |
| Peak Pressure | Max 380 bar (38 MPa) |
| Mount Flange | 1:1 interchangeable OEM mounting flange |
| Port Size | G1/2 hydraulic port |
| Built-in Parts | 3-stage planetary gear set, wet multi-disc integrated brake, duo-cone floating seal assembly |
| Recommended Oil | ISO VG46 hydraulic oil, SAE 85W-140 GL-5 heavy duty gear oil |
Product Overview
Revised Concise Version For 203-4710 Road Roller Planetary Final Drive
203-4710 is a 3-stage planetary final drive, interchangeable replacement for CS-74B, CS-76B, CS-78B, CS-79B single-drum rollers. It features 1:1 OEM mounting flanges, G1/2 hydraulic ports and duo-cone floating seals, with an integrated wet multi-disc brake. Carburized alloy gears and thick cast housing supply high torque for compaction and climbing. Full dimensional consistency enables plug-and-play installation with no modification.
This gearbox runs at 320 bar rated pressure and 380 bar peak pressure, maintaining stable performance under long heavy-load operation. Its shock-resistant structure suits muddy, dusty construction sites.
Reinforced gears and heavy-duty seals match standard travel motors without extra adapters. It is a durable, cost-effective high-torque drive for municipal and highway compaction work.
Core Advantages
1. Optimized Integrated Planetary Reducer Modular Design – Single Drum Roller Wheel Final Drive
Part No. 203-4710 is a 3-stage planetary wheel travel gearbox, OEM interchange spare part for single-drum rollers CS-74B, CS-76B, CS-78B, CS-79B. Equipped with carburized hardened alloy gears and heavy-duty bearings, this standalone gear assembly outputs constant high torque to handle long-hour subgrade compaction and steep climbing loads.
It fits standard matching hydraulic motors with G1/2 hydraulic ports, no transition adapters needed. Perfect for highway, municipal and foundation compaction jobs. Thick alloy cast housing with compact layout fits narrow wheel installation space. 1:1 OEM identical mounting flange, bolt holes and input splines allow direct plug-and-play swap to cut maintenance downtime.
2. 203-4710 Wheel Final Drive – High Torque 3-Stage Planetary Drive For Single Drum Compactors
203-4710 planetary final drive is a heavy-duty high-torque unit built for single-drum vibratory road rollers. It runs on 320 bar rated working pressure with 380 bar peak pressure, generating enough torque for heavy soil compaction and gradient climbing.
Reinforced gear sets and duo-cone floating seals maintain steady transmission under frequent load shocks. Precision ground gears lower abrasion for longer service life; premium sealing stops oil leaks and mud/dust intrusion on rough construction sites.
Operating temperature ranges from -20℃ to +85℃ to fit all severe worksite conditions. Built-in wet multi-disc service & parking brake balances fast transit speed and low-speed heavy compaction performance, ideal for all road foundation compaction projects.
Q: What machine does the 203-4710 planetary final drive fit?
A: The 203-4710 final drive is a heavy-duty travel planetary gear assembly, fully compatible with single drum road rollers: CS-74B, CS-76B, CS-78B, CS-79B. It serves as the core wheel drive unit for road compaction equipment.
Q: Is it a direct OEM replacement?
A: Yes. All mounting flanges, bolt holes, input splines, hydraulic ports and overall dimensions are 1:1 OEM interchangeable. No cutting, drilling or modification is needed for plug-and-play installation.
Q: What are the core technical parameters?
A: Rated working pressure: 320 bar; peak pressure: 380 bar; rated output torque: 118500 N·m; max breakout torque: 162000 N·m. It adopts a 3-stage planetary reduction structure and integrates a wet multi-disc brake, providing strong power for heavy-duty compaction and steep slope climbing.
Q: Is it fully compatible with the original hydraulic system?
A: It perfectly matches the standard supporting travel hydraulic motor and original equipment hydraulic system. No adapters are required, ensuring stable and consistent working performance.
Q: Does this final drive ensure stable travel performance?
A: Yes. Precision machined planetary gears minimize backlash and vibration. It maintains stable low-speed high-torque compaction and smooth high-speed travelling, adapting to diverse road construction scenarios.
Q: Are upgraded heavy-duty options available?
A: Yes. We support upgraded configurations including reinforced carburized gear sets, enhanced duo-cone floating seals, wear-resistant bearings and thickened splines, suitable for muddy, dusty and harsh construction sites.
Q: What lubricants and maintenance cycles are recommended?
A: Use SAE 85W-140 GL-5 heavy-duty gear oil. Check oil level and seal condition every 500 working hours; fully replace the gear oil every 2000 hours to keep optimal operating condition.
Q: How to solve common leakage and overheating problems?
A: Minor oil leakage can be solved by retightening mounting bolts; severe leakage requires replacing the full seal kit. Overheating is usually caused by deteriorated lubricating oil, insufficient oil volume or internal gear wear. Regular maintenance is required, and non-professional disassembly is prohibited.
Q: What is your warranty policy?
A: We offer a 12-month factory warranty. Free technical support and free part replacement are provided for non-human damaged failures under standard installation and normal operating conditions.
Document Info
Part Numbers: 234-1649, 2341649, Assembly GP No. 262-3690
Compatible Equipment: CAT CB-534C, CB-534D, CB-54, CB-564D, CB-634C, CB-634D, CB-64 Double Drum Vibratory Compactor
Matching Engine: CAT 3054C, C4.4, 3116, 3126
Product Type: 2-Stage Integrated Planetary Drum Travel Final Drive (Built-in Axial Piston Motor + Multi-disc Parking Brake)
Brand (Aftermarket): XLF Hydraulic / OEM Original: Caterpillar
1. Core Mechanical Transmission Specifications
| Item | Technical Value |
|---|---|
| Gear Structure | 2-stage NGW heavy-duty planetary reduction |
| Total Reduction Ratio | 78.6 : 1 |
| Rated Continuous Output Torque | 62000 N·m |
| Max Intermittent Peak Torque | 95000 N·m |
| Allowable Max Input Speed | 1850 rpm |
| Max Drum Output Rotation Speed | 23.5 rpm |
| Gear Material | 20CrMnTi carburized alloy steel, HRC 58–62 hard tooth surface |
| Housing Material | Thickened HT250 high-strength cast iron |
| Output Spline | 42 teeth, module 4, internal involute spline |
| Input Spline | 24 teeth, module 3 |
| Allowable Radial Load | 110 kN |
| Allowable Axial Load | 48 kN |
| Backlash | ≤12 arcmin |
| Transmission Efficiency (Full Load) | ≥92% |
| Net Weight | 146 kg |
2. Hydraulic Matching Parameters
| Item | Technical Value |
|---|---|
| Integrated Motor Type | Fixed displacement axial piston travel motor |
| Motor Displacement | 75 cc/rev |
| Rated Working Pressure | 350 bar (35 MPa) |
| Instant Peak Pressure | Max 420 bar (42 MPa) |
| Applicable Hydraulic Flow Range | 40–110 L/min |
| Standard Hydraulic Port Size | G1/2 |
| Main Seal Material | FKM fluororubber high-pressure oil seal; double floating output mud seal |
| Gearbox Lubricant Volume | 7.2 L |
| Recommended Hydraulic Oil | ISO VG46 anti-wear hydraulic oil |
| Recommended Gear Lubricant | SAE 80W-90 heavy-duty gear oil |
3. Overall Mounting Dimension (Unit: mm)
| Dimension Item | Size |
|---|---|
| Max Outer Diameter of Housing | Φ485 |
| Total Length (Flange to Motor End) | 562 |
| Output Flange Bolt Circle Diameter | Φ410 |
| Mounting Bolt Spec & Qty | 16 pcs M24 high-strength bolts |
4. Working Environment & Service Index
| Item | Standard Parameter |
|---|---|
| Continuous Operating Temperature Range | -20℃ ~ +85℃ |
| Short-time High Temperature Limit | ≤105℃ (Max 30 mins continuous) |
| Protection Grade | IP67 dustproof & waterproof |
| Duty Cycle | S1 full continuous heavy-load operation |
| Design Service Life | 20000 working hours (under standard maintenance) |
| Applicable Altitude | ≤3000 m |
| Anti-leakage Structure | Dual floating oil seal + axial composite sealing, mud & asphalt slurry isolation design |
5. Structural Composition Description
Two-stage planetary reduction group: Primary sun gear + planet carrier, secondary reinforced planetary group for high torque output during slope climbing and heavy compaction.
All-in-one integrated axial piston hydraulic motor at input end, compact layout to fit narrow drum internal space.
Built-in multi-disc static parking brake, reliable locking for slope parking during paving work.
Double floating oil seal at output flange, effectively isolate muddy water, asphalt residue and cooling water from steel drums.
Reinforced cast iron housing, anti-impact structure to resist frequent vibration and impact from road compaction.
6. OEM Replacement Compatibility
1:1 interchangeable with original CAT 234-1649 factory unit, identical mounting flange, splines, port positions and overall dimensions, no cutting, drilling or pipe modification required for plug-and-play installation.
Fully compatible with original hydraulic circuits of CAT CB series tandem compactors, no transition adapters needed.
Interchangeable assembly group number: 262-3690 (DRIVE GP-DRUM, factory original assembly number for CB534D / CB564D / CB634D).
7. Maintenance Specification
Inspection cycle: Check oil level, seal leakage and spline wear every 300 working hours.
Gear oil full replacement cycle: Every 1000 working hours.
Replace floating oil seal and full seal kit when obvious oil leakage occurs.
Prohibit unauthorized disassembly without professional hydraulic repair tools.
8. Warranty & Supply Info
Factory Warranty: 12 months from delivery date
MOQ: 1 piece
FOB Reference Unit Price: USD 2500 / pc
Annual Production Capacity: 500–800 sets
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