Swing Gearbox Fit for Excavator Kobelco SK250-8
Swing Gearbox Fit for Excavator Kobelco SK250-8

Introduction
Swing Gearbox, also known as the swing drive or swing motor, is an essential component of an excavator's hydraulic system. It is responsible for the rotation of the excavator's upper structure, allowing it to turn in a full circle and operate with precision. The gearbox is designed to withstand high torque loads and is equipped with durable gears and bearings that ensure its longevity. The swing gearbox has several features and uses, which include:
- Facilitating the rotation of the excavator's upper structure
- Providing the necessary torque to drive the excavator's hydraulic system
- Ensuring smooth and efficient operation of the excavator
- Enabling precise control of the excavator's movements

Installation and Functionality
The swing gearbox is typically installed in the excavator's upper structure, between the cab and the base. It is connected to the hydraulic system and receives power from the machine's engine. When the operator activates the swing function, the gearbox transfers the power to the swing motor, which rotates the upper structure in the desired direction. The gearbox operates based on the principles of torque and rotation, with the gears and bearings working together to ensure smooth and efficient movement.
Compatibility and Specifications
Our Swing Gearbox is specifically designed to fit the Excavator Kobelco SK250-8 model. Before purchasing, there are several specifications and parameters that need to be considered, which include:
| Parameter | Description |
|---|---|
| Size | The gearbox must be the correct size to fit the excavator's upper structure |
| Power Capacity | The gearbox must be able to handle the power output of the excavator's engine |
| Speed Ratio | The gearbox must have the correct speed ratio to ensure efficient operation |
Signs of Wear and Maintenance
Over time, the swing gearbox may begin to show signs of wear, which can impact its functionality and efficiency. Some signs to look out for include:
- Unusual noises or vibrations coming from the gearbox
- Decreased power or efficiency in the swing function
- Increased heat or friction around the gearbox
- Leaking fluid or oil from the gearbox
Regular maintenance is essential to ensure the longevity and efficiency of the swing gearbox. Some maintenance tasks that can help extend its lifespan include:
- Regular inspections and cleaning of the gearbox
- Replacing worn or damaged gears and bearings
- Checking fluid levels and replacing oil or fluid as needed
- Lubricating moving parts to reduce friction
Compatible Brands and Our Company
Our Swing Gearbox is compatible with a range of excavator brands and models, including but not limited to:
- Caterpillar
- Komatsu
- Hitachi
- Volvo
- Hyundai
Please note that we do not sell products for these specific brands and models, but we can provide compatible parts for them. Our company is a specialized manufacturer of high-quality spare parts for excavators, bulldozers, and other construction machinery. We use advanced production equipment and technology to ensure the precision and durability of our products. Our main products include walking gearboxes, rotary gearboxes, gears, bearings, and other components. We have a comprehensive range of over 12,000 transmission parts suitable for over 670 models of excavators and bulldozers.
Author: Miya
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port


