We burn in all gears
for more than 100 hours and check several times before shipping, to
make sure that our products have a good quality control.
First year repair guarantee:
If the gears have any
problems (manufacturing defects and which is not caused by the
user), customers can ship back the gears, we will refund the shipping
cost (customers must submit the shipping bill following which we will
reimburse the amount to customers, please note that we will only
refund shipping cost equal to what the customer had initially paid us
for shipping the gears to them when placing the order). We will
repair the defective gears for free and then ship back to customers, we
will bear the full shipping cost back to them.
After the completion of First year Repair guarantee :
If the gears
have any problems (manufacturing defects and which is not caused by
the user), in this case, the customers only pay for both ways (to and
fro) shipping costs, while we will repair for free labor charges.
User inflicted problem repair guarantee:
pay for both ways (to and fro) shipping and the cost of parts, while
labor charges are free.
If you have any
inquiries, please send email to
We will reply as
soon as possible.