Need the hardened version of an SHE helical gear? KHK SHE-H has a separate catalog listing so the treatment can be specified clearly.

Customer: What makes this series useful?
KAYO: SHE-H is the hardened helical gear family shown on the official KHK page. Its listed models retain the left-hand L designation and add the H suffix.
Customer: Which sizes can I choose?
KAYO: The current Japanese selection table lists 16 standard model codes, with module values 1.5, 2, 3, 4, 5, 6 and tooth counts from 18 to 30. Here are examples from that table.
| Model | Module | Teeth | Outside diameter (mm) | Mass (kg) |
|---|---|---|---|---|
| SHE1.5-20LH | 1.5 | 20 | 36 | 0.16 |
| SHE2-24LH | 2 | 24 | 56 | 0.56 |
| SHE3-30LH | 3 | 30 | 104 | 2.47 |
| SHE5-18LH | 5 | 18 | 110 | 3.91 |
| SHE6-25LH | 6 | 25 | 176 | 12.8 |
Customer: How do I select the right model?
KAYO: Specify the full LH model code and verify the mating rack or gear geometry, bore and mounting details. Use the hardened model ratings when checking duty and service life. Helical teeth create axial thrust, so include suitable bearing support and lubrication in the design.
Customer: What are the listed model numbers?
KAYO: The standard models shown in the official selection table are:
SHE1.5-20LH, SHE1.5-25LH, SHE1.5-30LH, SHE2-18LH, SHE2-24LH, SHE2-30LH, SHE3-20LH, SHE3-25LH, SHE3-30LH, SHE4-18LH, SHE4-24LH, SHE4-30LH, SHE5-18LH, SHE5-24LH, SHE6-20LH, SHE6-25LH
Customer: What should I send with an enquiry?
KAYO: Please share the complete model number, quantity, mating gear or rack details, bore and keyway requirements, operating speed and load. We can then discuss the specification and availability for your application.
Reference: KHK SHE-H official model selection table | KHK helical gear range. Dimensions and model availability should be confirmed against the latest manufacturer drawing.