Straight Hardened Rack (Induction Hardened)
SSTMH JIS N5
Induction-hardened straight racks with a tooth-flank case depth of 1.0-1.5 mm, balancing hardness with impact resistance. The preferred heavy-load solution for mining machinery, port crane long-travel drives and wind-turbine pitch systems.
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 1.0-1.5 mm) |
| Module Range | M1.5 – M5.0 |
| Pressure Angle | 20° |
| Helix Angle | 0° |
| Tooth Profile Standard | Involute (AGMA Q9-Q10) |
| Surface Treatment | Induction hardened + Tooth-flank finishing (upgradeable to ground grade) |
| Length Range | Standard lengths: 1000 mm, 2000 mm, 3000 mm |
| Mounting Method | Reinforced mounting-hole design |
| Typical Applications | Mining machinery, port crane long-travel drives, wind-turbine pitch systems |