I bought it for replacement from the manufacturer complete assembly. The NHK bearing has a feeling that it is crisp every few centimeters at the time of opening check. I am sorry to say that it can not be helped because it is JIS grade 0. If you replace grease with AZ BGR - 006 with less than half of original grease, both shields are very heavy. I wonder how to install the shield ... .... I wish I could use it without changing the grease in this case.
Compared to ceramic bearings such as ceramic speed, TNI and enduro, the cruising speed and time are comparable. However, after sealing the grease of the spin once turning the seal, the seal which hits the inside of the hub is processed. As the grease changes, there is a feeling that it hits the cotton knot at the beginning, but it rotates furiously about 100 km. As it is said, the stainless steel bearings of a Japanese company is enough if the wheel to use the cartridge for the hub.
There are three incisions on one side of the inner and the outer. As far as this application is concerned, it can be used because one side does not touch anything. But this is a serious flaw. By the way, there were no such defects in the former NSK and Nankai Seiko's equivalent.
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MonotaRO Co.,Ltd. Hyogo Public Safety Commission No.631330800020