Specifications
1 bearing steel GCR15 2 basic speed 3500 rpm limit engine speed of 8000 rpm 3ABEC-5 4 low noise Z21 bearing steel GCR15
2 basic speed 3500 rpm limit engine speed of 8000 rpm
3ABEC-5
4 low noise Z2
5 Suitable for automobile skates electric tools
6 Low noise high speed