Stainless steel 304 gear rack cut and machined as a hardware fitting for linear movement units.
Values below are the standard range keytrond holds for this part family. Tighter requirements are reviewed against the drawing before quotation.
| Tolerance range | Pitch ±0.02 mm, tooth height ±0.05 mm |
|---|---|
| Surface roughness | Ra 1.6 on tooth flank |
| Common materials | SUS304, SUS303 |
| Surface treatment | Passivation, Pickling, Bead blasting |
| Machining processes | CNC Milling, Gear Cutting, Surface Finishing |
| Max machining size | Module 1 - 4, length up to 2000 mm |
| Applicable industries | General Automation |
| Minimum order | 2 pcs for sample, 50 pcs for batch |
| Lead time | Sample 6-9 days, batch 12-18 days |
| Drawing requirement | Please specify module, tooth number or rack length, pressure angle, straightness and end machining. |
Gear racks convert rotary motion into linear movement and are used in adjustment units, sliding mechanisms and hardware fittings. Stainless steel 304 is chosen where the rack is exposed to moisture or cleaning agents.
The rack blank is milled square, then teeth are cut along the full length in one setup. End holes and slots are added after tooth cutting, and the finished rack is passivated to restore corrosion resistance.
| Inspection item | Method and instrument |
|---|---|
| Tooth pitch | Gear pitch gauge over 10 teeth |
| Straightness | Surface plate and dial indicator |
| Surface condition | Visual check after passivation |
A first article inspection report with dimensional results, material certificate and heat treatment record is provided for sample orders. Batch orders are sampled at 10 percent, with full inspection available on request.
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