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Stainless Steel Screw Gears
Grade JIS grade N9 (JIS B1702-1: 1998) JIS grade 5 (JIS B1702: 1976)
Reference
section of gear Normal plane
Gear teeth Standard full depth
Normal
pressure angle 20°
Helix angle 45°
Material SUS303
| Module | No. of teeth | Direction of helix | Shape | Bore | Hub dia. | Pitch dia. | Outside dia. | Face width | Hub width | Total length |
| AH7 | B | C | D | E | F | G | ||||
| m1 | 13 | R L | S1 | 6 | 15 | 18.38 | 20.38 | 10 | 10 | 20 |
| 15 | R L | S1 | 6 | 18 | 21.21 | 23.21 | 10 | 10 | 20 | |
| m1.5 | 10 | R L | S1 | 8 | 16 | 21.21 | 24.21 | 15 | 10 | 25 |
| 13 | R L | S1 | 10 | 23 | 27.58 | 30.58 | 15 | 10 | 25 | |
| 15 | R L | S1 | 10 | 25 | 31.82 | 34.82 | 15 | 10 | 25 | |
| 20 | R L | S1 | 12 | 30 | 42.43 | 45.43 | 15 | 10 | 25 | |
| m2 | 10 | R L | S1 | 12 | 22 | 28.28 | 32.28 | 20 | 15 | 35 |
| 13 | R L | S1 | 12 | 30 | 36.77 | 40.77 | 20 | 15 | 35 | |
| 15 | R L | S1 | 12 | 35 | 42.43 | 46.43 | 20 | 15 | 35 | |
| 20 | R L | S1 | 15 | 45 | 56.57 | 60.57 | 20 | 15 | 35 | |
| m2.5 | 10 | R L | S1 | 12 | 26 | 35.36 | 40.36 | 22 | 16 | 38 |
| 13 | R L | S1 | 15 | 35 | 45.96 | 50.96 | 22 | 16 | 38 | |
| 15 | R L | S1 | 15 | 40 | 53.03 | 58.03 | 22 | 16 | 38 | |
| 20 | R L | S1 | 20 | 60 | 70.71 | 75.71 | 22 | 16 | 38 | |
| m3 | 10 | R L | S1 | 15 | 34 | 42.43 | 48.43 | 25 | 18 | 43 |
| 13 | R L | S1 | 20 | 45 | 55.15 | 61.15 | 25 | 18 | 43 | |
| 15 | R L | S1 | 20 | 50 | 63.64 | 69.64 | 25 | 18 | 43 | |
| 20 | R L | S1 | 20 | 60 | 84.85 | 90.85 | 25 | 18 | 43 |
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