3. TSUBAKI precision standard ball series. Feature of series. Ball screw

Transcription

1 Ball screw 3. TSUBAKI precision standard ball series Feature of series Short delivery TSUBAKI precision standard ball screw is taken enough needs from the machine tool customers, and made as the precision ball screw for machine tool. It is possible to deliver a short time by standardize the of the screw shaft and the mass production. Standardize the support bearing part By the long and amount of experience, standardize the support bearing part and support part of the support mechanics. Easy working of shaft end By standardizing the shape of shaft end, it made the design easy. Moreover, because of the shaft end cylinder part is not hardened and the center hole is provided both shaft ends, they enable the precision shaft end working easily. Abundant standard series and flexibility TSUBAKI precision standard ball screw has 16 kinds for the machine tool, applies the every usage. Moreover, the ball screw for the mechatronics and mechatronics kit ball screw which fixed the support bearing are also available. High reliability Reasonable design, selected material, excellent technology, strict management, they maintain the high reliability. Excellent precision Grinding, assembling, inspection are done in the strictly temperature managed factory and using the top-level machines. Zero axial clearance Give a suitable preload by using the two nuts or arrange the steel ball, it makes the zero axial clearance. Axial clearance is also available. Dustproof TSUBAKI precision standard ball screw is installed the wiper in both ends of the nut as standard specification. 149

2 Symbol of precision standard type*1 Number of nut*2 Outside diameter of screw shaft(mm) Nominal lead(mm) S T D C5 A1U Shaft end specification*3 Accuracy grade Total (mm) Ball screw *1 type *2 Number of nut *3 Shaft end spec T: Ball recirculation part is settled in the nut diameter N: Ball recirculation part is out of the nut diameter S: Number of nut is one, preload is given by the adjustment of ball D: Number of nuts is twice, preload is given by the tension A: For the mechatronics equipment,, shaft end not worked B: For the machine tool, shaft end not worked C: Shaft end is worked by user s design A1U: Mechatronics kit with support bearing Notes on use Lubrication The enough lubrication is necessary when using the TSUBAKI precision standard ball screw. If the lubrication is not enough, it will cause the trouble or reduction of life. When use the ball screw, provide oil (ISO adhesive grade ) or grease (Li soap group NLGI#2-3, mechatronics equipment ball screw is #1) well and do a trial running before the use. Dustproof A wiper seal (labyrinth) for the dust prevention is installed in the TSUBAKI precision standard ball screw, please use a telescopic type cover or the equipment like the bellows in case ensure the dustproof. Sleeve Note on additional working at the shaft end Because of a short delivery, the shaft end of TSUBAKI precision standard ball screw is worked straight so an additional working on the shaft end is necessary depends on the use. We work it so please instruct us the detail by the standard shaft end shape. In the case of work the shaft end by the user, please obey the following notes. 1 Work the nut as it s fixed to the screw shaft. 2 Pay attention to invading a machining dust or a cutting fluid. 3 In case of operate a sudden rotation or a sudden stop when working, or stripping a nut from the screw shaft is necessary, please use the sleeve as below. 4 Use a run out stopper on the diameter part and centering well by using the center hole, and especially avoid working near the dangerous speed. 5 In case of come out the nut from the screw shaft, please contact us. 150

3 Ball screw (1)STS SERIES(SHAFT DIA.Φ20 ~ 32) REWORKABLE SHAFT END BALL SCREW FOR MACHINE TOOL NUT : TF TYPE (Over-size Preload) Nominal Number Ball screw specification Root Lead Ball Effective turns Thread Shaft dimension Lead accuracy Overall Journal Target Torelance Variation d0 dr I Dw m L1 L2 d1 l1 l2 X Y Z STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B

4 6-ФJ Drill thru Ball screw Lead Accuracy Thread = L 1 Variation = Z dimension Preload Accuracy of run-out Flange Oil hole Basic rated load Amount Runout Concentricity Squareness Length Flange P.C.D Thickness Notch Mount Position Size Dynamic Static N heigh hole a b c D1 L L0 D2 P F H J M Z Ca Co PPL M M M M M M M M M M M M M M M M M M Note 1. Hardening on shaft is L Shaft ends (l 1, l 2 ) can be machining work (under HRC 35.) 152

5 Ball screw Reworkable Shaft End Ball for Machine Tool NUT : TF TYPE (Over-size Ball Preload) Nominal Number Ball screw specification Root Lead Ball Effective turns Thread Shaft dimension Lead accuracy Overall Journal Target Torelance Variation d0 dr I Dw m L1 L2 d1 l1 l2 X Y Z STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B STS C5-B

6 6-ФJ Drill thru Ball screw Lead Accuracy Thread = L 1 Variation = Z dimension Preload Accuracy of run-out Flange Oil hole Basic rated load Amount Runout Concentricity Squareness Length Flange P.C.D Thickness Notch heigh Mount hole Position Size Dynamic Static N a b c D1 L L0 D2 P F H J M Z Ca Co PPL M M M M M M M M M M M M Note 1. Hardening on shaft is L Shaft ends (l 1, l 2 ) can be machining work (under HRC 35.) 154