Precision Ball Screw

Standard-Stock Precision Ball Screw Unfinished Shaft Ends

Offset Preload Model BIF	With this Ball Screw, the right and left screws are provided with a phase in the middle of the ball screw nut to achieve a below-zero axial clearance (under a preload).
Double-nut Preload Model BNFN	The most common type with a preload provided via a spacer between the two combined ball screw nuts to eliminate backlash.
Miniature Model MDK	A miniature type with a screw shaft diameter of φ4 to φ14 mm and a lead of 1 to 5mm.
Miniature Model MBF	A miniature type with a screw shaft diameter of φ4 to φ14 mm and a lead of 1 to 4mm.
Single nut Model BNF	The simplest type with a single ball screw nut.

Finished
Shaft Ends
Model BNK

A Ball Screw with a screw shaft end standardized according to the support unit.

Large Lead
Rotary nut Model BLR

A nut-rotating ball screw that has an integrated structure consisting of a ball screw nut and a support bearing.

Preload Type

Offset Preload Model BIF	With this Ball Screw, the right and left screws are provided with a phase in the middle of the ball screw nut to achieve a below-zero axial clearance (under a preload).
Slim nut Model DIK	A deflector-type Ball Screw in which the right and left screws are provided with a phase in the middle of the ball screw nut, and an axial clearance is set at a below-zero value (under a preload).
Rotary nut Model DIR	A nut-rotating Ball Screw in which a defector-type ball screw nut is integrated with a support bearing.
Double-nut Preload Model BNFN	The most common type with a preload provided via a spacer between the two combined ball screw nuts to eliminate backlash.
Slim nut Model DKN	A deflector-type Ball Screw in which a preload is provided via a spacer between the two combined ball screw nuts to achieve a below-zero axial clearance (under a preload).
Large Lead Model BLW	Since a preload is provided through a spacer between two large lead nuts, this Ball Screw model is capable of high-speed feed without backlash.

No Preload Type

Single nut Model BNF	The simplest type with a single ball screw nut.
Square Nut Model BNT	Since mounting screw holes are drilled on the square ball screw nut, this model can compactly be mounted on the machine without a housing.
Slim nut Model DK	ボThe most compact Ball Screw with the outer diameter of its ball screw nut being 70 to 80% of that of the return-pipe type.
Miniature Model MDK	A miniature type with a screw shaft diameter of φ4 to φ14 mm and a lead of 1 to 5mm.
Miniature Model MBF	A miniature type with a screw shaft diameter of φ4 to φ14 mm and a lead of 1 to 4mm.
Large Lead Model BLK	With this Ball Screw, the shaft diameter is the same as the lead dimension.
Super Lead Model WGF	With this Ball Screw, the lead length is 1.5 to 3 times greater than the shaft diameter.

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