R.a.P.s. The Rack and Pinion Sliders Synchronizing System
2. Less distortion and less thermal expansion and    degradation after continuous processing.
1. Stable repeatability and accuracy.
3. High reproducibility to home position on both ways  (forward and backward).
4. Easy maintenance/ adjustment.
5. The structure of R.a.P.s. can avoid direct process load.   Therefore, it can maintain stable accuracy in high process   load and high speed processing.
6. The difference of drive system such as a hydraulic motor    and a servomotor does not affect process accuracy. 
R.a.P.s.
Picture 1
Slide’ s finish process
We add hand scraping on slides to meet high accuracy, high rigidity, long service life, and high productivity. Because of the below “Advantages of scraping” we can get high reliability on our machines. (See Picture 2)
Advantages of hand scraping
1. Improving accuracy on slide surface.
2. Enhancing more smooth movement.
3. Improving lubrication on slide surface.
Picture 2
R.a.P.s.
We have adopted R.a.P.s. in our all counter flow  rolling machine series. Because of our continuous
effort and innovation, it is possible for us to get longer durability and high process accuracy.
It is important to sychronize left and right sliders/dies for precise accuracy.
In our rolling machine series we have adopted “2 Rack gears and 1 pinion gear” since we developped the machine. (See Picture 1)
Advantages of
R.a.P.s.
*Process conditionMachine type： CT-600 （Hydraulic motor type）Parts： Drive shaft both ends spline/ two ways rollingParts’ s material： 40CrProcess speed： 20m/min.Clamp： NC + Air pressureCoolant： Oil-based
**Measuring methodGauge： CNC Gear gauge TTi-300E (Tokyo Technical Instruments Inc.)Note) The above data is one of the examples. It doesn’ t mean figures stand for process garantee.
Pith diameter ＝φ 23.95, No. of gear teeth ＝18, Module ＝1.25、PA＝30°Sample of process accuracy
k0600550d
ピッチ・歯溝振レ 検査成績表
承認確認測定測定日時連続番号
12008/10/07 20: 02pi 23. 95xz18xml 1. 25xpa300
031010モジュール歯数圧力角ネジレ角外歯/内歯外径
 M 1. 25000        18  30/00/00L 00/00/00外歯   24. 0000
X 500［ 左歯面 ］
［ 右歯面 ］
［ 歯溝ノ振レ ］
Uni tμ
Uni tμ
Uni tμ
V8 2415
歯溝ノ振レ誤差J IS
単一ピッチ誤差J IS
隣接ピッチ誤差J IS
累積ピッチ誤差J IS
単一ピッチ誤差J IS
隣接ピッチ誤差J IS
累積ピッチ誤差J IS
- 20+ 20
- 20+ 20
エヌ. エッチ. ケー. ビルダー株式会社
4590135180225270315
2. 73. 64. 01. 90. 60. 60. 0
-0. 90. 5-0. 9-5. 7-7. 3-7. 5-4. 5
-2. 9-0. 1-3. 0-2. 7-4. 3-5. 2-3. 9
4590135180225270315
4590135180225270315
 M 1. 25000          30/00/00L 00/00/00   
転位係数歯幅基準歯面測定子基礎円径ピッチ円径
 0. 0000 21. 000       左上1. 25019. 485622. 5000   
 0. 0000 21. 000        25. 00019. 485622. 5000   