Precision machine parts are manufactured by applying the precision processing technology of ISSOKU, an expert in precision measurement.
 The “side contact” type that uses the spiral structure of a screw and the “rolling contact” type that has a rapid and light movement and enables accurate positioning through the use of a ball between the screw shaft and a nut, these products have an active role in various machine tools, semiconductor production equipments and aircraft and contribute to a wide range of industry.

Shaft ends finished Ball screw are prepared for easy assemblage.

Un-worked shaft ends Ball screw are prepared for special use when finished shaft ends are inconvenience. And long shaft Ball screws are also prepared.

Short lead time and best cost performance achieved by special machining process. An ample variety of types to meet various applications.

It is very easy to use because SUS nuts are produced with the same dimensions as ISSOKU standard ball screw nuts.
It’s best using in clean room, vacuum inside and food machine, medical treatment machine, etc.  And it’s possible to use in a wide range of fields.

Error such as run out of nut end face, alignment error, lead error due to shaft whirling will be extremely reduced by X-Y axis floating joint mechanism.
As pitching error, yawing error and rolling error can be extremely reduced, it’s best for precision feed mechanism.
As joint of floating unit is composed by steel ball and harden shaft and assembled with preload, there is no backlash in lead direction.
High mechanism in compact body and space-saving compared with old type using plate spring.

As double spring structure with preload, it assures steady accuracy for a long time.
Because of constant pressure preloading, fluctuating value of torque is very small.
And very smooth rotation is obtained by high accurate condition of processing.

Various lead screws are manufactured based on the high skill cultivated for a year of producing thread gauges. Please try high precision lead screw manufactured by lapping 　skill which is the core technology of ISSOKU.
Special type and small amount goods will be also available.

ISSOKU offers various precision devices like custom-made unit for positioning by experienced skills and unique technologies. OEM of mass-production machine parts is also available.

ISSOKU answers needs of the high technology and supports positioning technology in compact devices. Ultra space-saving and slight leading which approaches extremity of ball screw, have been achieved.
Nominal outside diameter of thread shaft : φ2 nominal lead 0.5 (Minimum size in the world class)

Reduce size of nut by inside return circulation.

Reduce re-feel of lubricant for long term by the oil supply unit installation. Also reduce negative environmental impact as minimize oil use.