備註(Note)：
1. C7級使用之7字頭軸承無預壓處理，,軸向最大間隙 0.018mm
(Using angular contact ball bearings without preload for FK10 to FK30 C7 types Support Units , and Max. axial clearance is 0.018mm.)
2. C5級使用之軸承經預壓處理，軸向0間隙
(Bearings make Preload for C5 type support units , and Axial clearance is 0 mm..)
3.軸承皆採用日系品牌大廠
(All of bearings use Japan's brand bearings)
