Types of Recommended Shapes of Shaft Ends

To ensure speedy estimate and manufacturing of Ball Screws, THK has standardized the shaft end shapes of the screw shafts.

Mounting procedure	Symbol for shaft end shape		Shape	Supported Support Unit
Fixed	HJ	H1		FK EK
		J1		BK
		H2		FK EK
		J2		BK
		H3		FK EK
		J3		BK
Supported	K			FF EF BF