Metric Gear Rack

Metric Gear Rack

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Description

Precsion Grade: (JIS Grade 5) 7e25                                                    Hardening: Tooth area carburized(HRC42-48)
Material:(S45C Medium Carbon Steel)C45                                           Side Ground: Included
Type: Helical Rack                                                                             Pressure Angle: 20°
Treatment of Teeth: Milled                                                                 Right helix angle: 19°31′42″
Module L L2 Tooth No. B A0 A1 D I Hole No. A C1 C2 E D1 I1 C3 Pitch Error  /300mm
1 1000 3.14 300 15 15 14 0.02
1.5 1000 6.7 200 19 19 17.5 62.5 125 8 8 7 11 7 31.7 936.6 5.7 0.03
2 1000 8.5 150 24 24 22 62.5 125 8 8 7 11 7 31.7 936.6 5.7 0.031
2.5 1000 8.5 120 24 24 21.5 62.5 125 8 9 7 11 7 31.7 936.6 5.7 0.033
3 1000 10.3 100 29 29 26 62.5 125 8 9 10 15 9 35 930 7.7 0.035
4 1000 13.8 75 39 39 35 62.5 125 8 12 10 15 9 33.3 933 7.7 0.038
5 1000 17.4 60 49 39 34 62.5 125 8 12 14 20 13 37.5 925 11.7 0.04
6 1000 20.9 50 59 49 43 62.5 125 8 16 18 26 17 37.5 925 15.7 0.042
8 1000 28.7 36 79 79 71 60 120 8 25 22 33 21 120 720 19.7 0.045
10 1000 35.11 30 99 99 89 62.5 125 8 32 33 48 32 125 750 19.7 0.052

Rack and pinion is utilized to convert rotational motion to linear motion. A rack is straight teeth cut into one surface of rectangular or cylindrical rod shaped material, and a pinion is a small cylindrical gear meshing with the rack. There are many ways to categorize gears. If the relative position of the gear shaft is used, a rack and pinion belongs to the parallel shaft type.