
The standerd of determine and gist:JIS D9419-2010
Fix the front and rear hub, Apply the force in 1200n on front hub/1800n on rear hub. Keep them at a speed of 250RPM and 100000 times. Check whether there is stripping or obvious wearing remains and other harmful defects when test finished.

- Basic Introduction
-
The standerd of determine and gist:JIS D9419-2010
Fix the front and rear hub, Apply the force in 1200n on front hub/1800n on rear hub. Keep them at a speed of 250RPM and 100000 times. Check whether there is stripping or obvious wearing remains and other harmful defects when test finished.