Looking for HEPCO Ring Rail Gears? Let us check the product family and full model code.

Customer: What is this product family?
KAYO: These HEPCO ring rail gears appear in the KHK selection. Both internal and external gear configurations are listed. The overview identifies En31 steel and an induction-hardened rail section.
Customer: Which specifications can I review?
KAYO: The current KHK selection lists 16 model codes in this family. Representative models are shown below, with the complete code list in the next section. Dimensions are in millimeters unless another unit is shown. Preserve any parentheses in the manufacturer dimensions and confirm them against the drawing.
| Model | Gear type | Rail outside diameter (mm) | Rail inside diameter (mm) | Rail width (mm) | Mass (kg) |
|---|---|---|---|---|---|
| R20-210P | External gear | 230.37 | 189.63 | 20.37 | 0.66 |
| R44-468P | External gear | 512.74 | 423.26 | 44.74 | 5.1 |
| R20-210Q | Internal gear | 230.37 | 189.63 | 20.37 | 0.66 |
| R44-468Q | Internal gear | 512.74 | 423.26 | 44.74 | 5.1 |
| R76-1033Q | Internal gear | 1109.75 | 956.26 | 76.74 | 32 |
Customer: How do I select the right version?
KAYO: Confirm internal or external teeth, rail dimensions, mating pinion and supporting bearing arrangement.
Customer: What are the complete model codes?
KAYO: R20-210P, R25-159P, R25-255P, R25-351P, R44-468P, R44-612P, R76-799P, R76-1033P, R20-210Q, R25-159Q, R25-255Q, R25-351Q, R44-468Q, R44-612Q, R76-799Q, R76-1033Q.
Customer: What should I confirm for my application?
KAYO: Use the full model code and the current manufacturer drawing or product instructions. Check the mating components, dimensions and operating requirements for the actual application before finalizing the selection.
Customer: What details should I send for an enquiry?
KAYO: Please send the complete model code, quantity, intended use, mating product or equipment and any critical dimensions or operating conditions. We can review the specification and availability for your application.
Reference: KHK official other-products selection. Select the corresponding series to review its current model table.