Guizhou GZG Transmission Co., Limited is one of the leading manufacturers and suppliers of welding hub in China, featured by quality products and good price. If you're going to buy durable welding hub made in China, welcome to get free sample from our factory. We also accept customized orders.

HUB Adapter Sprocket is largely used as a part of mechanical driving of transmission.
Large torque, strong tension, Such as mining equipment, environmental protection equipment, cleaning equipment, agricultural mechanization equipment. Products wear - resistant, high life.


W weld-on-Hubs
Hub reference | Bush number | A | B | C | D | E | F |
W12 | 1215 | 7303 | 63.50 | 62.71 | 38.10 | 15.88 | 9.35 |
W16 | 1615 | 8255 | 73.03 | 72.24 | 38.10 | 15.88 | 9.35 |
W20 | 2012 | 101.60 | 80.90 | 88.11 | 44.45 | 19.05 | 14.45 |
W25 | 2517 | 127.00 | 111.13 | 110.34 | 44.45 | 19.05 | 12.70 |
W30 | 3030 | 149.86 | 133.35 | 132.56 | 76.20 | 25.40 | 19.05 |
W35 | 3535 | 184.15 | 158.75 | 157.96 | 88.90 | 31.75 | 25.40 |
W40 | 4040 | 225.43 | 196.85 | 196.85 | 101.60 | 31.75 | 31.75 |
W45 | 4545 | 254.00 | 222.25 | 222.25 | 114.30 | 38.10 | 38.10 |
WG weld-on-Hubs
Hub reference | Bush number | A | B | C | D | E | F | F1 | X |
WG12 | 1215 | 7303 | 63.50 | 62.71 | 38.10 | 15.88 | 9.35 | ||
WG16 | 1615 | 8255 | 73.03 | 72.24 | 38.10 | 15.88 | 9.35 | ||
WG20 | 2012 | 101.60 | 80.90 | 88.11 | 44.45 | 19.05 | 14.45 | ||
WG25 | 2517 | 127.00 | 111.13 | 110.34 | 44.45 | 19.05 | 12.70 | ||
WG30 | 3030 | 149.86 | 133.35 | 132.56 | 76.20 | 25.40 | 19.05 | 25 | 19 |
WG35 | 3535 | 184.15 | 158.75 | 157.96 | 88.90 | 31.75 | 25.40 | 31 | 22 |
WG40 | 4040 | 225.43 | 196.85 | 196.85 | 101.60 | 31.75 | 31.75 | 37 | 22 |
WG45 | 4545 | 254.00 | 222.25 | 222.25 | 114.30 | 38.10 | 38.10 | 44 | 15 |

We can provide Standard welding HUB, NON-Standard welding, WH12, WH16, WH20, WH25, WH30, WH35, WH40. also accept customized according to the drawing. Below is the pictures for reference.




GZG transmission has professional equipment to inspect and test the sprockets, which guarantee the quality of it.
We can provide Original certificate and ex-works inspection report for customers.

Finished sprocket-----plastic bag-------plywood case


Guizhou GZG Transmission Co., Limited
We are also one of the reliable and trustworthy vendors in European, American, African, Asian markets etc. Many OEMs trust our products to run their equipment due to its superior strength, durability, performance and long functioning life.


HUB Adapter Sprocket can be sent by sea, air, for small quantity, can send by courier.
For southeast of Asia countries such as Thailand, Vietnam, Myanmar, we can send to customers’ agent in Guangdong, Guangxi or Yunan Province, then agent will send by truck
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