China Good quality Mining off-Road Truck Transmission O Ring4110001931088/238-5088 Fast Gearbox gearbox and motor

Product Description

HangZhou CHINAMFG CO LTD is authorized  distributor of  FAST GEAR & XI”AN FC auto transmission .which is the world’s largest production base of commercial vehicle transmission and a world-class supplier of high-quality automotive driveline system 

Our products:
Now we are mainly supply transmission and spare parts for China brand trucks .
Manual gear box : 7DS200;7DS200k ; 8DS260 ;8DS260A;8DS240
Auto transmission: FC6A210P; FC6A250P;FC6A210PR;FC6A250PR;FC6A210DP;
The transmission used on following mining truck;


Related parts

Item Part No. Part Name Qty.
1 Q401B12T28F61 WASHER-HARD  6
2 9S-8002-1 PLUG-LDSTOR  1
3 6V-5048 SEAL-O-RINGO  1
4 371-571 PLATE-SEPARATOR  1
5 371-571 GASKETAS  1
6 4F-4097 SEAL-ORINGO  1
7 383-0811 VALVEGP-RLF-C  1
8 214-1048 WASHER-HARD  4
9 7X-2541 BOLT  4
10 8M-3175 WASHER-HARD  2
11 250-7194 BOLT-SHOULDER  2
12 312-2648 BRACKET  1

Our strengths
We understand deeply the harsh application condition for mining trucks. FC6A210/250 features higher reliability and bearing capacity, which, by cooperating with the engine effectively, provides excellent dynamic performance for the mining trucks under harsh conditions. We assess strictly the application condition and recommend customers the best dynamical system combination to meet the requirement for dynamic performance and fuel economy. The extremely low fault rate and low maintenance expense help customers to realize maximum productivity and economic benefit.

When your order from us , the transmission nameplate is very important


Deliver goods


Our Certificate of Authorized Distribution

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Application: Mining off-Road Truck
Function: Speed Changing
Layout: Three-Ring
Hardness: Soft Tooth Surface
Installation: Torque Arm Type
Step: Stepless


Customized Request

worm gearbox

Self-Locking Properties in a Worm Gearbox

Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.

The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.

This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.

However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.

When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.

worm gearbox

Materials Used for Worm Gears

Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:

  • Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
  • Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
  • Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
  • Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
  • Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
  • Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.

The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.

worm gearbox

How Does a Worm Gearbox Compare to Other Types of Gearboxes?

Worm gearboxes offer unique advantages and characteristics that set them apart from other types of gearboxes. Here’s a comparison between worm gearboxes and some other common types:

  • Helical Gearbox: Worm gearboxes have higher torque multiplication, making them suitable for heavy-load applications, while helical gearboxes are more efficient and offer smoother operation.
  • Bevel Gearbox: Worm gearboxes are compact and can transmit motion at right angles, similar to bevel gearboxes, but worm gearboxes have self-locking capabilities.
  • Planetary Gearbox: Worm gearboxes provide high torque output and are cost-effective for applications with high reduction ratios, whereas planetary gearboxes offer higher efficiency and can handle higher input speeds.
  • Spur Gearbox: Worm gearboxes have better shock load resistance due to their sliding motion, while spur gearboxes are more efficient and suitable for lower torque applications.
  • Cycloidal Gearbox: Cycloidal gearboxes have high shock load capacity and compact design, but worm gearboxes are more cost-effective and can handle higher reduction ratios.

While worm gearboxes have advantages such as high torque output, compact design, and self-locking capability, the choice between gearbox types depends on the specific requirements of the application, including torque, efficiency, speed, and space limitations.

China Good quality Mining off-Road Truck Transmission O Ring4110001931088/238-5088 Fast Gearbox   gearbox and motor	China Good quality Mining off-Road Truck Transmission O Ring4110001931088/238-5088 Fast Gearbox   gearbox and motor
editor by CX 2024-02-27