GZ Yuexiang Engineering Machinery Co., Ltd.
| Payment Terms | T/T, Western Union, PayPal |
| Supply Ability | 500 pieces per month |
| Delivery Time | 1-2 days |
| Packaging Details | Wooden |
| Model | R250LC-7 |
| Part number | 31N8-40071BG |
| Part name | travel Reduction Gearbox |
| Excavator brand | komatsu |
| Name | Travel gearbox |
| Application | Excavator parts |
| Warranty | 6 Months |
| Brand Name | Belparts |
| Model Number | R250LC-7 |
| Place of Origin | China |
View Detail Information
Explore similar products
JCB205 Hydraulic Reduction Gearbox Excavator Parts Digger Track Device JS205
EC300DL 14599920 Final Drive Assembly Less Motor Travel Gearbox For
PC56 PC55 Excavator Hydraulic Reduction Gearbox 22H-60-13110 22H-60-13112
Excavator Spare Parts Travel Gearbox Reducer DH60-5 DH60-7 S55W-5 Transmission
Product Specification
| Payment Terms | T/T, Western Union, PayPal | Supply Ability | 500 pieces per month |
| Delivery Time | 1-2 days | Packaging Details | Wooden |
| Model | R250LC-7 | Part number | 31N8-40071BG |
| Part name | travel Reduction Gearbox | Excavator brand | komatsu |
| Name | Travel gearbox | Application | Excavator parts |
| Warranty | 6 Months | Brand Name | Belparts |
| Model Number | R250LC-7 | Place of Origin | China |
| High Light | excavator parts travel reduction Gearbox ，31N8-40071BG Travel Reduction Gearbox ，travel reduction Gearbox for Hyundai | ||
Hyundai R250LC-7 31N8-40071BG travel reduction gearbox for excavator parts
The excavator travel gearbox (also known as the walking gearbox or track drive gearbox) is a critical component in crawler excavators, responsible for transferring power from the engine to the tracks, enabling controlled movement. Designed to withstand heavy loads and harsh environments, it ensures efficient mobility across diverse terrains. This guide explores its working principles, construction, functions, applications, and maintenance practices.
Product Description
| Appliion | Excavator |
| Part name | Excavator travel gearbox |
| Part number | 31N8-40071BG |
| Model | R250LC-7 |
| MOQ | 1PC |
| Warranty | 6 months |
| Payment term | T/T, LC, PayPal |
| Delivery | 3 days after the payment received |
| Shipment | by sea, by air, by express or as required |
| # | Part No | Part Name | Qty. | Price request |
|---|---|---|---|---|
| * | XKAH-00487 | REDUCTION GEAR | 1 | |
| 1 | XKAH-00311 | HUB 141927 | 1 | |
| *-1 | XKAH-00488 | SPINDLE KIT 718549 | 1 | |
| *-11 | XKAH-00489 | SPINDLE ASSY | 1 | |
| N2 | XKAH-00004 | SPINDLE 131132 | 1 | |
| N3 | XKAH-00005 | HOLDER-FLANGE 131133 | 1 | |
| N19 | XKAH-00006 | BOLT-SOCKET 228558 | 3 | |
| N34 | XKAH-00007 | PIN-PARALLEL 131130 | 6 | |
| N37 | XKAH-00008 | WASHER-PLAIN 131131 | 3 | |
| *-2 | XKAH-00371 | RV GEAR ASSY 718550A | 1 | |
| *-21 | XKAH-00010 | RV GEAR KIT 718554 | 1 | |
| N4 | XKAH-00011 | RV GEAR-A 131136D | 1 | |
| N5 | XKAH-00012 | RV GEAR-B 131137D | 1 | |
| N9 | XKAH-00013 | SHAFT-CRANK 131134C | 3 | |
| N12 | XKAH-00014 | SPACER 131135A | 6 | |
| N22 | XKAH-00490 | BEARING-T/ROLLER | 6 | |
| N23 | XKAH-00016 | BEARING-NEEDLE 229125A | 6 | |
| 6 | XKAH-00491 | GEAR-INPUT | 1 | |
| *-3 | XKAH-00492 | SPUR GEAR KIT 718551 | 1 | |
| 7 | XKAH-00479 | GEAR-SPUR 133593 | 3 | |
| 8 | XKAH-00020 | COVER 131141B | 1 | |
| 13 | @ | FUEL INJECTION PIPE & NOZZLE | 3 | |
| 13-1 | XKAH-00850 | PIECE(3.75-3.80T) | AR | |
| 13-2 | XKAH-00851 | PIECE(3.80-3.85T) | AR | |
| 13-3 | XKAH-00852 | PIECE(3.85-3.90T) | AR | |
| 13-4 | XKAH-00853 | PIECE(3.90-3.95T) | AR | |
| 13-5 | XKAH-00854 | PIECE(3.95-4.00T) | AR | |
| 15 | XKAH-00022 | COUPLING 107589 | 1 | |
| 17 | XKAH-00023 | PIN 131144 | 24 | |
| 20 | XKAH-00024 | RING-SNAP 204958 | 3 | |
| 21 | XKAH-00494 | BEARING-BALL | 2 | |
| 25 | XKAH-00026 | RING-SNAP 202606 | 3 | |
| K27 | XKAH-00194 | O-RING 201765 | 2 | |
| K29 | XKAH-00028 | O-RING 204449A | 1 | |
| K30 | XKAH-00029 | O-RING 204456A | 1 | |
| *-4 | XKAH-00372 | FLOATING SEAL KIT 716687A | 1 | |
| KN31 | XKAH-00495 | SEAL-FLOATING | 2 | |
| 33 | XKAH-00032 | PLUG-RO 131145 | 3 | |
| 35 | XKAH-00496 | BOLT-SOCKET | 12 | |
| 36 | XKAH-00033 | BALL-STEEL 203316 | 1 | |
| 42 | XKAH-00034 | PIN-PARALLEL 131146 | 2 | |
| K43 | XKAH-00035 | O-RING 201710 | 3 | |
| N | @ | FUEL INJECTION PIPE & NOZZLE | AR | |
| K | XKAH-00111 | SEAL KIT 674B9000-00 | 1 |
The travel gearbox operates as a speed reducer and torque amplifier:
Power Input: Receives high-speed, low-torque rotational energy from the hydraulic motor (or engine via a driveshaft in mechanical systems).
Gear Reduction: Multi-stage gears (planetary/spur) reduce speed while increasing torque.
Output to Sprocket: The final drive transfers torque to the sprocket, which engages with the track links, propelling the excavator.
Direction Control: Integrated clutches or hydraulic valves enable forward/reverse movement.
Hydraulic excavators commonly use hydraulic travel motors coupled with gearboxes, while older models may employ mechanical transmissions.
FAQ
1 . If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.
2 . What is the warranty of the parts after I purchased?
The warranty is 6/12 Months based on the item details.The genuine parts we don't have the warranty of it,but just can make sure it is 100% genuine.
3 . How can I pay the order?
You can finish the payment by T/T,Western Union,Paypal etc.
4 . When will get the items after I place order?
Once we received your payment , we will arrange the shipment within 24 hours ; if don't have stock , we will tell you before payment .
5 . How can I do if there is something wrong with the items?
First of all , I have confidence in the quality of our products ,if you really found something wrong ,please provide pictures for us and we will check. After it is confirmed, please return to us , we will offer the correct item.
6 . What is your main products ?
Our pain product is final drive , hydraulic pump , swing gearbox , travel gearbox , swing motor , hydraulic parts . If you need any parts for crawler excavator , you can ask us too . We will try our best to meet your requirement.
| XKAH-01461 |
Company Details
Year Established:
2013
Total Annual:
20000-3000000
Employee Number:
50~93
Ecer Certification：
Verified Supplier
GZ Yuexiang Engineering Machinery Co., Ltd. GZ Yuexiang Engineering Machinery Co., Ltd, is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery t... GZ Yuexiang Engineering Machinery Co., Ltd. GZ Yuexiang Engineering Machinery Co., Ltd, is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery t...
Get in touch with us
Leave a Message, we will call you back quickly!