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Excavator Hydraulic Pump
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Excavator Hydraulic Pump Parts
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Travel Motor Assy
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Excavator Swing Motor
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Swing Gearbox
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Excavator Control Valve
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Travel Gearbox
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Excavator Final Drive Parts
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Excavator Center Joint
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Hydraulic Gear Pump
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Hydraulic Fan Motor
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Excavator Spare Parts
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Excavator Controller
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Excavator Monitor
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Excavator Relief Valve
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Excavator Hydraulic Cylinder
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Diesel Engine Assembly
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krystal burgessAS ALWAYS, FAST AND FRIENDLY SERVICE.
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James McBrideTransaction went smoothly, Seller was very helpful. Product arrived as promised, Very happy and will do business with them in future.
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Dallas Skinnervery happy with all aspects of order. Communication was great from ordering to delivery
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claudio vera garciathe product of very good quality. arrived in perfect condition and at the agreed time.
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Daniela CzapskaI'm very satisfied! Transaction at the highest level. Item very well packed. Recommended the Seller
Doosan DX255LC DH258 DX255 Swing Reduction Gearbox 2101-1025I K1004037A For Excavator Parts

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xMachine Model | DX255LC DH258 DX255 | Part Number | 2101-1025I K1004037A |
---|---|---|---|
Part Name | Swing Gear Reduction | Application | Excavator |
Brand | Doosan | Type | Hydraulic Parts |
Highlight | excavator parts swing reduction gearbox,Doosan swing reduction gearbox,DX255 swing reduction gearbox |
Doosan DH258 DX255 swing reduction gearbox 2101-1025I K1004037A for excavator parts
Product description
Part name | swing gearbox |
Part number | 2101-1025I K1004037A |
Machine model | DH258 DX255 |
Warranty | 1 year |
Brand | doosan |
The structural design of the excavator slewing gearbox is the key to its superior performance. The slewing gearbox is typically composed of components such as gears, bearings, housing, and hydraulic motor interfaces. Its internal gear transmission system is precisely designed and optimized to maintain stable transmission efficiency under high-load conditions. Gears are one of the core components of the slewing gearbox, and their meshing accuracy directly affects the noise level and transmission efficiency of the slewing gearbox. Modern slewing gearboxes usually employ helical gears or planetary gear designs, which not only enhance the load-bearing capacity of the gears but also effectively reduce noise and vibration during operation.
The bearing system is also a crucial part of the slewing gearbox. Bearings play a role in supporting and transmitting power within the slewing gearbox, and their performance directly impacts the smooth operation and service life of the slewing gearbox. Modern slewing gearboxes typically use high-precision rolling bearings or sliding bearings, which feature high load capacity, low friction coefficient, and long service life, ensuring stable performance under harsh working conditions. Additionally, to further extend the service life of the bearings, slewing gearboxes are equipped with advanced lubrication systems. These systems ensure that the bearings are adequately lubricated during operation, reducing friction and wear, thereby prolonging the bearings' lifespan.
List of spare parts
# | Part No | Part Name | Comment | Qty. | Price request |
---|---|---|---|---|---|
- | K1004037A | REDUCTION GEAR, SWING | 243 kg | 1 | |
1 | K1004038B | SHAFT | 28 kg | 1 | |
2 | K1002539A | CASING, GEAR | 1 | ||
3 | K1002540A | CARRIER, NO.2 | 19 kg | 1 | |
4 | K1002541A | GEAR, SUN NO.2 | 4 kg | 1 | |
5 | K1002542 | GEAR, PLANETARY, NO.2 | 4 kg | 4 | |
6 | K1002543 | PLATE, SIDE NO.2 | 4 | ||
7 | K1002544 | PIN, NO.2 | 1 kg | 4 | |
8 | K1002545 | BUSHING, NO.2 | 4 | ||
9 | K1002546 | CARRIER, NO.1 | 7 kg | 1 | |
10 | K1004040B | GEAR, SUN NO.1 | 2 kg | 1 | |
11 | K1002548 | GEAR, PLANETARY, NO.1 | 2 kg | 3 | |
12 | K1002549 | PLATE, SIDE NO.1 | 3 | ||
13 | K1002550 | PIN, NO.1 | 1 kg | 3 | |
14 | K1006981 | GEAR, RING | 35 kg | 1 | |
15 | K1002552 | PLATE, THRUST | 1 | ||
17 | K1003384A | PIN, LOCK | 4 | ||
18 | K1002554A | SPACER | 1 kg | 1 | |
19 | K1004041A | COLLAR | 1 | ||
20 | K1002556 | PLATE | 1 kg | 1 | |
21 | K1002558 | RING, LOCKING | 1 | ||
22 | K1002559 | BEARING, SPHERICAL, 23224 | 12 kg | 1 | |
23 | K1003682A | BEARING, ROLLER, NJ224E | 16 kg | 1 | |
24 | K1005719 | SEAL, OIL | 1 kg | 1 | |
25 | S5741361 | PIN, SPRING | 4 | ||
26 | 2181-1116D4 | PLUG, RECHECK | 97123-04111 | 1 | |
27 | S5810010 | PLUG | 3 | ||
28 | K1004042A | GEAR, PINION | 17 kg | 1 | |
29 | S2226671 | BOLT, HEX SOCKET | 12 | ||
30 | 140-01343A | PIPE, HYDRAULIC | 1 | ||
31 | 119-00020 | BAR, LEVEL | 1 | ||
32 | K1002567 | PLATE, SIDE NO.3 | 3 | ||
33 | S6500600 | RING, RETAINING | 3 | ||
34 | 2120-1363 | BOLT | 4 | ||
35 | 2403-1039A | PLATE, LOCK | 1 kg | 1 | |
36 | 2126-9001 | WIRE (1.4X250) | 1 | ||
37 | K1003386 | BUSHING, NO.1 | 3 | ||
40 | K9004901 | CARRIER NO.1 ASS'Y | 14 kg | 1 | |
41 | K9004902 | CARRIER NO.2 ASS'Y | 31 kg | 1 |