Learn bearing clearance
Should distinguish between the interstices of bearings before installing bearings and clearance of mounted and reached a stable operating temperature (gap operation).
Vietnam’s advantages ultrasonic grinding technology
Ultrasonic grinding and lapping ultrasonic machining hybrid method. We combine the traditional method of processing is grinding, lapping with ultrasound.
Jet engine run on wate
Engineers Canada has produced a jet engine Jetley-Flyer using thrust from the water. This engine can propel the driver up to 30 meters with velocity 35 km / h.