Helical Hardened Rack
SOTMH JIS N5
Helical hardened racks whose tooth flanks are induction hardened, with a case depth of >= 1.0 mm while the core retains good toughness. Especially suited to heavy, impact-loaded applications such as forging equipment and injection-molding clamp mechanisms.
Precision Grade
Normal Grade N
High Grade H
Precision Grade P
Super Precision SP
Ultra Precision UP
| Item | Parameter Details |
|---|---|
| Precision Grade | JIS N5 |
| Material | S45C Carbon steel (induction hardened) |
| Hardness | HRC 48-52°(tooth-flank case depth >= 1.0 mm) |
| Module Range | M1.5 – M4.0 |
| Pressure Angle | 20° |
| Helix Angle | 19°31′42″ |
| Tooth Profile Standard | Involute (AGMA Q9) |
| Surface Treatment | Induction hardened + Finishing |
| Length Range | Standard lengths: 1000 mm, 2000 mm |
| Mounting Method | Large-diameter mounting holes for enhanced bolted-joint reliability |
| Typical Applications | Forging equipment, injection-molding clamp mechanisms, heavy material-handling systems |