Considering SRHEF for a helical rack drive? The catalog groups the available sizes in a dedicated table.
Customer: Which family should I specify?
KAYO: Use the complete model designation to identify the module and rack format. Confirm the mating pinion and mounting geometry from the manufacturer drawings.
Customer: Which models and sizes are shown?
KAYO: The current Japanese selection table lists 6 model codes for this group. Module values: 1.5, 2, 3, 4, 5, 6. All listed models are shown below.
| Model | Module | Overall length (mm) | Face width (mm) | Mass (kg) |
|---|---|---|---|---|
| SRHEF1.5-1000R | 1.5 | 1000 | 17 | 2.06 |
| SRHEF2-1000R | 2 | 1000 | 24 | 4.14 |
| SRHEF3-1000R | 3 | 1000 | 29 | 5.91 |
| SRHEF4-1000R | 4 | 1000 | 39 | 10.7 |
| SRHEF5-1000R | 5 | 1000 | 49 | 13.1 |
| SRHEF6-1000R | 6 | 1000 | 59 | 19.9 |
Customer: What should I check before installation?
KAYO: Check the mating pinion specification and installation pitch over the required travel. For a helical rack, check pitch, helix angle and opposite helix hand of the pinion. Provide bearing support for axial thrust and verify alignment along the full travel.
Customer: What are the exact model numbers?
KAYO: SRHEF1.5-1000R, SRHEF2-1000R, SRHEF3-1000R, SRHEF4-1000R, SRHEF5-1000R, SRHEF6-1000R.
Customer: What should I send for an enquiry?
KAYO: Please send the complete model code, quantity, required travel, mating pinion, mounting details, speed and load. We can discuss the specification and availability for your application. Confirm final dimensions and suitability against the latest manufacturer information.
References: KHK SRHEF official selection page | KHK rack product range.