Product Parameters
| Specification Item | Description |
|---|---|
| Compatible Models | CG430 / CG520 Brush Cutter |
| Input Spline Diameter | 28 mm |
| Number of Spline Teeth | 9T (9 teeth) |
| Gear Ratio | Approx. 1:1.2 – 1:1.5 (per configuration) |
| Housing Material | Aluminum Alloy |
| Internal Gear Material | Hardened Steel |
| Output Shaft Type | Threaded (M10 / M12) or Splined |
| Lubrication Type | Grease-packed (sealed) |
Product Description
Product Details
1. Precision 28mm 9-Tooth Input Spline
Engineered to mate directly with CG430/CG520 drive shaft output, ensuring positive torque transfer without slip or backlash.
2. Durable Aluminum Alloy Housing
Lightweight cast aluminum housing provides excellent heat dissipation and corrosion resistance while reducing overall tool weight.
3. Sealed Grease Lubrication
Factory-packed with high-temperature grease, the sealed design requires no maintenance and prevents debris ingress into gearbox internals.
Products Package
About Us
Production
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FAQ
Q1: What is the difference between clutch housing and gearbox?
A: Clutch housing connects to clutch shoes (engine side). Gearbox mounts at the cutting head end and reduces speed while increasing torque to the blade or trimmer head.
Q2: How do I know if my gearbox needs replacement?
A: Signs include grinding noises during operation, excessive heat from the gearbox, visible oil leakage, or the cutting head turning roughly or not at all.
Q3: Can I open and regrease the gearbox?
A: Yes. Remove the gearbox, clean old grease, inspect gears for wear, and repack with high-temperature bearing grease (approx. 10–15g). Replace seals if damaged.
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