SANY Excavator Undercarriage Repair Kit – Driveshaft Carrier Bearing, Oil Seal, Wheel Bearing & Brake Rebuild Set for SY Series
This comprehensive SANY Excavator Driveline & Brake Maintenance Kit includes four critical chassis components: the Driveshaft Carrier Bearing, Shaft / Oil Seals, Wheel Hub Bearings, and a complete Brake Repair Kit. Engineered to OEM specifications, this set solves common issues such as driveline vibration, final drive oil leaks, wheel hub play, and parking brake failure. A cost-effective, all-in-one solution for SY55 to SY415 series excavators.
Technical Specifications
This repair kit is a direct replacement for the following SANY excavator models. Please confirm your machine model and serial number before ordering.
Primary Application Systems:
- Driveline / Propeller Shaft support
- Final Drive / Travel Motor output shaft sealing
- Wheel Hub / Axle bearing assembly
- Travel Motor Parking Brake unit
Replacement & Cross-Reference Information
1. Driveshaft Carrier Bearing
This assembly typically includes the bearing core, the rubber damping carrier, and the mounting bracket.
| Component | Part Number (SANY OEM) | Description |
|---|
| Complete Carrier Assembly | SANY-CB-2140 (varies: 14021401 / 1402-1401) | Includes bearing + rubber isolator + cast bracket. Direct fit. |
| Bearing Core (Inner) | SANY-BRG-6207 (or 6308 depending on model) | Sealed deep-groove ball bearing for the center support. |
| Rubber Isolator / Cushion | SANY-RUB-2145 | Rubber damping ring that fits between bearing and bracket. |
| Snap Ring / Circlip | SANY-CIR-2146 | Retaining ring that locks the bearing into the carrier housing. |
2. Shaft Seal / Oil Seal
These seals are critical for the Final Drive (Travel Motor) and Wheel Hub. The most common size for SANY medium/large excavators is the duo-cone floating seal or standard rotary shaft seal.
| Component | Part Number (SANY OEM) | Description |
|---|
| Final Drive Input Shaft Seal | SANY-OS-2150A | Double-lip oil seal for travel motor output shaft. |
| Wheel Hub Oil Seal (Outer) | SANY-OS-2151B | Outer seal for the wheel hub assembly. |
| Wheel Hub Oil Seal (Inner) | SANY-OS-2152C | Inner seal for the hub bearing cavity. |
| Floating Seal Set (Duo-Cone) | SANY-FS-2153 | Heavy-duty metal floating seal for final drive planetaries (prevents gear oil leakage into the track frame). |
| O-Ring Seal Kit (for seal housing) | SANY-OR-2154 | Rubber O-rings for the seal cap/housing mating surfaces. |
3. Wheel Bearing
SANY excavators use Tapered Roller Bearings for wheel hubs (wheeled excavators) and track carrier rollers. These bear heavy radial and axial loads.
| Component | Part Number (SANY OEM) | Description |
|---|
| Wheel Hub Bearing (Inner Cone) | SANY-WB-2160A | Inner tapered roller bearing (cone + roller set). |
| Wheel Hub Bearing (Outer Cone) | SANY-WB-2161B | Outer tapered roller bearing (slightly smaller for the hub cap side). |
| Carrier Roller Bearing | SANY-WB-2162C | Bearing used in the bottom track carrier rollers. |
| Bearing Adjustment Shims | SANY-SHIM-2163 | Set of steel shims (0.1mm / 0.2mm) for preload adjustment. |
| Wheel Bearing Locknut | SANY-LN-2164 | Hex castle nut for securing the hub bearing.
|
4. Brake Repair Kit
This kit rebuilds the Spring-Applied, Hydraulic-Released Parking Brake located inside the travel motor or swing motor.
| Component | Part Number (SANY OEM) | Description |
|---|
| Complete Brake Repair Kit | SANY-BRK-2170 | Full master kit: Friction discs + Steel plates + Springs + Piston seals. |
| Friction Disc Set (Facing) | SANY-BRK-2171F | Set of 4–6 organic/paper friction discs (depending on model). |
| Reaction Steel Plates | SANY-BRK-2172S | Set of hardened steel separator plates. |
| Brake Return Springs | SANY-BRK-2173SP | Set of 6–8 coil compression springs that engage the brake. |
| Piston Seal Kit (Brake Piston) | SANY-BRK-2174PS | Includes the square-cut piston seal and backup rings for the hydraulic release chamber. |
| Dust Wiper Seal (Brake Cap) | SANY-BRK-2175DW | External dust wiper preventing dirt from entering the brake piston cavity. |
5. Complete Assembly Kits (Bundled Packages)
For convenience, suppliers often combine these parts into larger 'Undercarriage Overhaul Kits' by specific SANY model.
6. Important Cross-Reference Notes for Buyers
150108020014A V90N130VRE1BJ1K0GM-T2G2 Hydraulic Pump Sany Excavator
