Swing Gearbox Fit for Excavator Komatsu PC160
Swing Gearbox Fit for Excavator Komatsu PC160
The Swing Gearbox, also known as the swing drive, is an important component of an excavator's hydraulic system. It is responsible for rotating the excavator's upper structure on its undercarriage. Here are some key features and uses of the Swing Gearbox:
- Transmits torque from the hydraulic motor to the excavator's turntable.
- Provides a smooth and stable rotation of the upper structure.
- Protects the hydraulic motor from excessive loads.

Installation and Function
The Swing Gearbox is typically located near the base of the excavator's upper structure. It is bolted onto the turntable and is driven by the hydraulic motor. Its function is to transfer hydraulic power to the upper structure and enable it to rotate. Here's how it works:
- The hydraulic motor receives hydraulic fluid from the excavator's hydraulic pump.
- The motor converts the hydraulic pressure into rotational force.
- The rotational force is transmitted to the Swing Gearbox.
- The Swing Gearbox amplifies the rotational force and transfers it to the turntable.
- The upper structure rotates smoothly and steadily.

Compatibility with Excavator Komatsu PC160
Our Swing Gearbox is designed to fit perfectly with the Excavator Komatsu PC160 model. Before purchasing, you need to determine the following parameters:
| Parameter | Description |
|---|---|
| Swing Ratio | The ratio of the Swing Gearbox's output speed to the input speed, expressed as a percentage. |
| Pinion Teeth | The number of teeth on the Swing Gearbox's pinion gear. |
| Ring Gear Teeth | The number of teeth on the Swing Gearbox's ring gear. |
Signs that it's time to replace the Swing Gearbox
Over time, the Swing Gearbox may wear out or become damaged. Here are some signs that it's time to replace it:
- Unusual noises coming from the Swing Gearbox during operation.
- Increased play or movement in the upper structure.
- Difficulty rotating the upper structure.
- Leaks or damage to the Swing Gearbox or its components.
Daily maintenance to extend the lifespan of the Swing Gearbox
Here are some daily maintenance tips to help extend the lifespan of the Swing Gearbox:
- Regularly inspect the Swing Gearbox for leaks or damage.
- Check the oil level in the Swing Gearbox and top up if necessary.
- Replace the Swing Gearbox oil filter regularly.
- Use high-quality oil that meets the manufacturer's specifications.
Compatibility with other excavator brands and models
Our Swing Gearbox is compatible with a wide range of excavator brands and models, including but not limited to:
- Caterpillar 320C
- Hitachi ZX210
- Komatsu PC138US-8
- Volvo EC210B
Please note that we do not sell products for the above-mentioned brands and models. The compatibility information is provided for customer reference only.
About our company
We are a dedicated manufacturer of high-quality spare parts for construction machinery, such as excavators and bulldozers. Our company boasts advanced production equipment, excellent processing technology, and a highly skilled production and marketing team. Our main products include walking and rotary speed reducer assemblies, gears, drive shafts, planetary carriers, hubs, pump housings, swing shaft seats, end covers, washers, bearings, oil seals, and other supporting products. We produce over 12,000 transmission components for more than 591 models of construction machinery.
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


