The 2.2Kw Chinese Spindles - Info, Setup and Advice + More

[paulus.v]

I asked solar.jean if all his 2.2kw spindles are the same model/making and he confirmed "yes,that's right,all is same mode and same factory" and he added "we sell the products as total amount of USD374 (price+freight)".

No matter if you bid for the Japanese bearings or the German ones you will get the same product from him.
Possible to be the same seller from Aliexpress with the lowest price (note the Japanese and German bearings mentioned in the same listing).

Chai sells spindles manufactured by Jiesite and Jean the ones made by Huajiang. Both located in the Changzhou city. In my opinion both companies produces the "cheapest" Chinese spindles Jiesite is the only spindle manufacturer/trader on Alibaba who does not provide information about the bearings used. Huajiang has a made-in-china account where the P4 bearing grade is listed only for the 3 and 4.5kw models.

Jiesite seems to be a smaller and younger company with better quality control compared to Huajiang. They also have some interesting tips for spindle use. Here follows the most interesting one:

During storage and transport of the spindle, the status of high-speed grease inside the bearing will change. The user shall run it at a low speed first by starting from the lowest speed of the spindle for 30 minutes and then 20 minutes for every 3000 rounds; otherwise there will have abnormal sound, noise, heat and other phenomena, which will affect the bearing life if the spindle is started directly at a high speed. During long term storage, the spindle shall run (at low speed) for 15~30 minutes once a week at least.

None of the Chinese manufacturers claim to use import bearings.