Stock Helical Gears
| Stock Helical Gears |
| Hardened Steel | 45° Helix Angle | Right or Left Hand |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 8 | .333" | .391" | .187" | On End | HZ-2408-R | HZ-2408-L |
| 12 | .500" | .558" | .250" | On End | HZ-2412-R | HZ-2412-L |
| 16 | .666" | .724" | .250" | On End | HZ-2416-R | HZ-2416-L |
| 18 | .750" | .808" | .375" | 1/16" | HZ-2418-R | HZ-2418-L |
| 24 | 1.000" | 1.058" | .500" | 1/8" | HZ-2424-R | HZ-2424-L |
| 36 | 1.500" | 1.558" | .500" | 1/8" | HZ-2436-R | HZ-2436-L |
| 40 | 1.666" | 1.724" | .500" | 1/8" | HZ-2440-R | HZ-2440-L |
| 48 | 2.000" | 2.058" | .500" | 1/8" | HZ-2448-R | HZ-2448-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 8 | .400" | .470" | .250" | On End | HZ-2008-R | HZ-2008-L |
| 10 | .500" | .570" | .250" | On End | HZ-2010-R | HZ-2010-L |
| 15 | .750" | .820" | .437" | 1/16" | HZ-2015-R | HZ-2015-L |
| 20 | 1.000" | 1.070" | .500" | 1/8" | HZ-2020-R | HZ-2020-L |
| 25 | 1.250" | 1.320" | .625" | 3/16" | HZ-2025-R | HZ-2025-L |
| 30 | 1.500" | 1.570" | .750" | 3/16" | HZ-2030-R | HZ-2030-L |
| 35 | 1.750" | 1.820" | .750" | 3/16" | HZ-2035-R | HZ-2035-L |
| 40 | 2.000" | 2.070" | .750" | 3/16" | HZ-2040-R | HZ-2040-L |
| 60 | 3.000" | 3.070" | .750" | 3/16" | HZ-2060-R | HZ-2060-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 8 | .500" | .588" | .250" | On End | HZ-1608-R | HZ-1608-L |
| 12 | .750" | .838" | .375" | 1/8" | HZ-1612-R | HZ-1612-L |
| 16 | 1.000" | 1.088" | .500" | 1/8" | HZ-1616-R | HZ-1616-L |
| 20 | 1.250" | 1.338" | .500" | 1/8" | HZ-1620-R | HZ-1620-L |
| 24 | 1.500" | 1.588" | .500" | 1/8" | HZ-1624-R | HZ-1624-L |
| 32 | 2.000" | 2.088" | .500" | 1/8" | HZ-1632-R | HZ-1632-L |
| 40 | 2.500" | 2.588" | .500" | 1/8" | HZ-1640-R | HZ-1640-L |
| 48 | 3.000" | 3.088" | .500" | 1/8" | HZ-1648-R | HZ-1648-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 10 | .833" | .951" | .500" | 1/8" | HZ-1210-R | HZ-1210-L |
| 12 | 1.000" | 1.118" | .625" | 3/16" | HZ-1212-R | HZ-1212-L |
| 15 | 1.250" | 1.368" | .625" | 3/16" | HZ-1215-R | HZ-1215-L |
| 18 | 1.500" | 1.618" | .625" | 3/16" | HZ-1218-R | HZ-1218-L |
| 21 | 1.750" | 1.868" | .625" | 3/16" | HZ-1221-R | HZ-1221-L |
| 24 | 2.000" | 2.118" | .625" | 3/16" | HZ-1224-R | HZ-1224-L |
| 30 | 2.500" | 2.618" | .750" | 3/16" | HZ-1230-R | HZ-1230-L |
| 36 | 3.000" | 3.118" | .750" | 3/16" | HZ-1236-R | HZ-1236-L |
| 48 | 4.000" | 4.118" | .750" | 3/16" | HZ-1248-R | HZ-1248-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 10 | 1.000" | 1.140" | .500" | 1/8" | HZ-1010-R | HZ-1010-L |
| 15 | 1.500" | 1.640" | .500" | 1/8" | HZ-1015-R | HZ-1015-L |
| 20 | 2.000" | 2.140" | .750" | 3/16" | HZ-1020-R | HZ-1020-L |
| 25 | 2.500" | 2.640" | .750" | 3/16" | HZ-1025-R | HZ-1025-L |
| 30 | 3.000" | 3.140" | .750" | 3/16" | HZ-1030-R | HZ-1030-L |
| 40 | 4.000" | 4.140" | .750" | 3/16" | HZ-1040-R | HZ-1040-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 10 | 1.250" | 1.426" | .625" | 3/16" | HZ-810-R | HZ-810-L |
| 12 | 1.500" | 1.676" | .750" | 3/16" | HZ-812-R | HZ-812-L |
| 16 | 2.000" | 2.176" | .875" | 3/16" | HZ-816-R | HZ-816-L |
| 20 | 2.500" | 2.676" | .875" | 3/16" | HZ-820-R | HZ-820-L |
| 24 | 3.000" | 3.176" | .875" | 3/16" | HZ-824-R | HZ-824-L |
| 32 | 4.000" | 4.176" | .875" | 3/16" | HZ-832-R | HZ-832-L |
| 36 | 4.500" | 4.676" | 1.000" | 1/4" | HZ-836-R | HZ-836-L |
| 40 | 5.000" | 5.176" | 1.000" | 1/4" | HZ-840-R | HZ-840-L |
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Keyway | Right Hand | Left Hand |
| Catalog Number | Catalog Number | |||||
| 9 | 1.500" | 1.736" | .750" | 3/16" | HZ-609-R | HZ-609-L |
| 12 | 2.000" | 2.236" | .750" | 3/16" | HZ-612-R | HZ-612-L |
| 15 | 2.500" | 2.736" | .750" | 3/16" | HZ-615-R | HZ-615-L |
| 18 | 3.000" | 3.236" | 1.000" | 1/4" | HZ-618-R | HZ-618-L |
| 24 | 4.000" | 4.236" | 1.000" | 1/4" | HZ-624-R | HZ-624-L |
| 30 | 5.000" | 5.236" | 1.000" | 1/4" | HZ-630-R | HZ-630-L |
| 36 | 6.000" | 6.236" | 1.000" | 1/4" | HZ-636-R | HZ-636-L |
