◆ Electric tool: high rotation rate, ABEC1 and ABEC3 precision ◆ Precision instrument:oil lubrication, low driving moment, flexible rotation, ABEC3 and ABEC5 precision ◆ Radiation fan: very low noise, ABEC5 precision ◆ Model: flexible rotation, ABEC1 and ABEC3 precision ◆ Copy machine: low noise, ABEC1 and ABEC3 precision ◆ Fishing gear: good hand touch, flexibility, no stop in rotation, ABEC1 and ABEC3 precision ◆ Micro machine: low noise, ABEC1 and ABEC3 precision