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Komatsu Marine Parts
PLANETARY GEAR (SWING 1ST)
Availability: 2-7 days
Shipping: Worldwide
PLANETARY GEAR (SWING 1ST) #4
Product Details
Part Number
20Y-26-22120
Description
PLANETARY GEAR (SWING 1ST) #4
Brand
Komatsu
Category
Others
Availability
2-7 days
Shipping
Worldwide
Price
On Request
Product Description
Komatsu Gear-train component 20Y-26-22120
1. Product Overview
Komatsu Gear-train component 20Y-26-22120 is listed under source title “PLANETARY GEAR (SWING 1ST)”. It is classified for this batch as gear-train component within the mechanical drive or timing system. The source record does not establish an exact engine model. Confirm the complete engine model, serial number, arrangement, and installed reference before ordering.
2. Function and Operating Principle
A gear-train component transfers torque or establishes a fixed speed and timing relationship between rotating assemblies. Tooth form, pitch, width, bore, helix, timing marks, and mating components must match.
Meshing teeth transmit load between shafts while bearings and housings maintain alignment and backlash. Lubrication and correct tooth contact reduce wear, heat, and noise.
3. Application Status
| Manufacturer / brand | Komatsu |
|---|---|
| Part number | 20Y-26-22120 |
| Component category | Gear-train component |
| System | Mechanical drive or timing |
| Evidence level | C — Component identity only |
| Engine application | Not established by the supplied record |
4. Typical Signs That Inspection May Be Required
| Observation | Possible significance |
|---|---|
| Whine, knock, or cyclic gear noise | May indicate wear, backlash, alignment, bearing, or tooth-contact problems. |
| Pitted, chipped, or polished teeth | Shows distress that requires inspection of mating gears and lubrication. |
| Timing deviation | Can involve incorrect assembly, damaged timing features, or gear movement. |
| Metal debris in lubricant | Requires examination of the complete drive train. |
These observations are inspection triggers rather than a confirmed diagnosis. Evaluate the complete engine system and follow the applicable manufacturer service information.
5. Inspection and Replacement Guidance
- Inspect mating gears rather than replacing one gear in isolation.
- Check teeth, bore, key, spline, bearings, and timing marks.
- Measure backlash and contact using the manufacturer procedure.
- Confirm gear position, ratio, and engine configuration.
6. Information Required Before Ordering
- Complete engine or equipment model.
- Engine serial number and arrangement or configuration number.
- Installed part reference and clear photographs of the identification label.
- Installation position and related assembly information.
Compatibility notice: Verify 20Y-26-22120 against serial-number-specific parts documentation before purchase or installation. Do not select the component by appearance or part-number similarity alone.