HX340SL HX330L swing motor assy for Hyundai EXcavator spare parts 38K9-10150 39K9-12100 Rotary motor device
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Our main products are Excavator Hydraulic Spare Parts, Hydraulic Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan Motor and other hydraulic items with genuine and aftermarket quality. Until now, our products have been exported to more than 125 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with our own brand "Belparts", which is highly praised by foreign customers and enjoys a high reputation.
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| Pos. | Part No | Qty | Parts name | Comments |
| *. | 38K9-10150 | [1] | SWING MOTOR ASSY | SEE 4100 |
| *-2. | 39K9-12100 | [1] | SWING REDUCTION GEAR | |
| 1 | 39Q8-12110 | [1] | GEAR RING | |
| 2 | 39K9-12120 | [1] | DRIVE SHAFT | |
| 3 | 39K9-12130 | [1] | BEARING-SPH.ROLLER | MAIN |
| 4 | 39Q8-12140 | [1] | BEARING-SPH.ROLLER | SUB |
| 5 | 39Q8-12150 | [1] | PLATE-THRUST | |
| 6 | 39Q8-12160 | [1] | RING-SNAP | |
| 7 | 39Q8-12170 | [1] | COVER | |
| 8 | S017-120306 | [12] | BOLT-HEX | |
| 9 | 39Q8-12180 | [1] | CASING | |
| 10 | S632-290001 | [1] | O-RING | |
| 11 | S109-100306 | [12] | BOLT-SOCKET | |
| NK12. | 39Q8-12201 | [1] | CARRIER NO.2 | |
| NK13. | 39Q8-12211 | [4] | GEAR-PLANETARY NO.2 | |
| NK14. | 39Q8-12220 | [4] | BEARING-NEEDLE NO.2 | |
| NK15. | 39Q8-12231 | [8] | WASHER-THRUST NO.2 | |
| NK16. | 39Q8-12240 | [4] | PIN-CARRIER NO.2 | |
| NK17. | S472-910404 | [4] | PIN-SPRING | |
| K18. | 39Q8-12251 | [1] | GEAR-SUN NO.2 | |
| NK19. | 39Q8-12261 | [1] | PLATE-THRUST NO.2 | |
| NK20. | 39Q8-12281 | [1] | CARRIER NO.1 | |
| NK21. | 39Q8-12291 | [3] | GEAR-PLANETARY NO.1 | |
| NK22. | 39Q8-12300 | [3] | BEARING-NEEDLE NO.1 | |
| NK23. | 39Q8-12311 | [6] | WASHER-THRUST NO.1 | |
| NK24. | 39Q8-12320 | [3] | PIN-CARRIER NO.1 | |
| NK25. | S472-800404 | [3] | PIN-SPRING NO.1 | |
| K26. | 39Q8-12331 | [1] | GEAR-SUN NO.1 | |
| NK27. | 39Q8-12341 | [1] | PLATE-THRUST NO.1 | |
| 28 | 39Q8-12350 | [1] | SLEEVE | |
| 29 | S632-140001 | [1] | O-RING | |
| 30 | 39Q6-12350 | [1] | SEAL-OIL | |
| 31 | 39Q6-41450 | [2] | PIN-PARALLEL | |
| 32 | S109-18050D | [14] | BOLT-SOCKET | |
| 33 | 39K9-12360 | [1] | NAME PLATE | |
| 34 | 39Q6-41800 | [2] | RIVET | |
| 35 | P220-430204 | [1] | PLUG-HEX | |
| K. | 39Q8-12270 | [1] | CARRIER ASSY KIT 1 | SEE ILLUST |
| K. | 39Q8-12190 | [1] | CARRIER ASSY KIT 2 | SEE ILLUST |
| N. | @ | [AR] | NOT SUPPLIED PARTS | |
Principle: As the core for excavator body rotation, the swing assembly first receives high-pressure oil from the hydraulic pump. The swing motor converts hydraulic energy into mechanical energy, which is then transmitted to the built-in reduction mechanism. Through multi-stage gears, the mechanism reduces speed and increases torque, amplifying driving force before transferring it to the slewing ring to drive the upper body for 360° rotation, meeting the orientation adjustment needs during operation.
Usage: Control rotation direction and speed via the swing lever—the larger the lever range, the faster the speed. Avoid sudden rotation or rotating with heavy loads during operation to prevent component impact. Regularly check the motor oil level and seal leakage, and clean the slewing ring gear surface to prevent wear from affecting rotation accuracy.
We offer a variety of customization services. We will complete customized products within the promised timeframe, based on the client's requirements. Please contact us if needed.
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HX340SL HX330L swing motor assy for Hyundai EXcavator spare parts 38K9-10150 39K9-12100 Rotary motor device Images
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