SANY-SY1250-Final Drive Sprocket Assembly-OEM quality ODM price-sprocket source manufacture in quanzhou.
Product Specifications
1. Core Definition & Function
What is a SANY SY1250 Final Drive Sprocket Assembly?
The Final Drive Sprocket Assembly is a critical powertrain component in the SANY SY1250 excavator (12.5-ton class). It integrates:
Final Drive (Travel Motor): Converts hydraulic power into mechanical rotation.
Sprocket: Engages with the track chain to propel the machine.
Reduction Gears: Transmits torque while reducing speed.
Seals/Bearings: Prevents contamination and ensures smooth operation.
Primary Function: Transfers engine power to the tracks, enabling movement across rugged terrain in mining, construction, and earthmoving applications.
2. Technical Specifications
| Parameter | Specification |
|---|---|
| Compatibility | SANY SY1250 Excavators (All variants: SY1250C, SY1250H) |
| Part Number | Example: SANY-SY1250-5G1117 (Verify serial prefix) |
| Gear Ratio | ~19:1 (ISO 6336 standard) |
| Lubrication | Gear Oil (ISO VG 220) |
| Material | Forged Alloy Steel (Case-hardened) |
| Weight | 190 kg (varies by model) |
3. Top Failure Symptoms & Diagnosis
Google data shows users search for these problem-focused keywords:
"SANY SY1250 final drive grinding noise" → Indicates gear tooth damage.
"SY1250 sprocket wobble" → Caused by worn bearings or misalignment.
"Final drive oil leak" → Seal failure (common in high-dust environments).
"Loss of excavator travel power" → Internal gear/shaft failure.
4. Replacement Guidelines
Tools Required:
Torque wrench (450–500 N·m bolt spec)
Hydraulic jack
Gear puller
Installation Steps:
Drain gear oil, remove track chain.
Detach mounting bolts securing the final drive.
Press out the old assembly; clean mounting surface.
Install new unit with OEM-specified shims.
Refill oil (SAE 80W-90 recommended).
5. Sourcing: OEM vs. Aftermarket
OEM Sources:
SANY Dealers: 12-month warranty; part # cross-referencing required.
Price: $2,500–$3,500 (new).
Aftermarket Alternatives:
Premium: CQC
Budget: CQC
Marketplaces: DPW Machinery Parts (specify "SY1250 final drive").
Based on Semrush/Ahrefs data for heavy equipment parts:
| Keyword Type | Examples | Search Volume |
|---|---|---|
| Commercial Intent | "Buy SANY SY1250 final drive assembly" | 1K/mo |
| Problem Intent | "SY1250 final drive repair cost" | 800/mo |
| GEO-Targeted | "SANY excavator parts supplier Texas" | 300/mo |
| Long-Tail | "SY1250-5G1117 final drive sprocket weight" | 100/mo |
7. Content Hooks for Featured Snippets
Question-Targeted Answers (Voice search/SGE optimized):
Q: "What causes SANY SY1250 final drive failure?"
A: Contaminated oil (40%), misaligned sprockets (30%), overload (20%), seal leaks (10%).Q: "How much does a SY1250 final drive assembly cost?"
A: $900–$3,500 (OEM: $2.5K+, aftermarket: $900–$2.2K).
8. Authority-Building Technical Insights
Preventative Maintenance Tips:
Check oil viscosity every 500 hours (use ISO VG 220).
Inspect sprocket tooth wear with a caliper (replace if >30% loss).
Monitor track tension – over-tightening accelerates bearing failure.
Interchangeable Parts:
Cross-Brand: cqctrack.
Aftermarket IDs: dpw SY1250 sprocket
Now we have a skilled, efficiency team to supply high-quality service for our buyer. We often follow the tenet of customer-oriented, details-focused for China Wholesale Excavator Undercarriage Sections Carrier Roller Front Idler Track Roller Sprocket for Cat Komatsu Sany Hitachi, We sincerely welcome you occur to visit us. Hope we now have very good cooperation from the potential.
China Wholesale Komatsu Idlers and Track Idler, If any item be of interest to you, be sure to allow us to know. We'll try our best to satisfy your requirements with high quality merchandise, the best prices and prompt delivery. Remember to feel free to contact us at any time. We'll reply you when we receive your inquiries. Please note that samples are available before we start our business.
