Rigid Coupling Hub
Two-step bored rigid coupling hub that axially aligns two shafts without backlash.
Manufacturing Scope
Rigid Coupling Hub is a Couplings & Shaft Adapters family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀12–20 mm, lengths 22–38 mm, standard material Steel (also steel, stainless, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request an instant quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is KAPA-RJK-12 at 38 mm. The family is produced by turning alone. Bores in this family run ⌀4–12 mm. All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is KAPA-RJK-12: 38 mm long at ⌀20 mm, L/D 1.9. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to H7 tolerance; the smallest is KAPA-RJK-04 (⌀12 mm) and the largest KAPA-RJK-12 (⌀20 mm). The family includes bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 9 variants.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| KAPA-RJK-04 | ⌀12 | 22 mm | ⌀4 · 2 steps | H7 | DIN 705 rigid | 43.42 ₺ |
| KAPA-RJK-05 | ⌀13 | 23 mm | ⌀5 · 2 steps | H7 | DIN 705 rigid | 44.86 ₺ |
| KAPA-RJK-06 | ⌀14 | 25 mm | ⌀6 · 2 steps | H7 | DIN 705 rigid | 47.43 ₺ |
| KAPA-RJK-07 | ⌀15 | 26 mm | ⌀7 · 2 steps | H7 | DIN 705 rigid | 48.96 ₺ |
| KAPA-RJK-08 | ⌀16 | 28 mm | ⌀8 · 2 steps | H7 | DIN 705 rigid | 51.65 ₺ |
| KAPA-RJK-09 | ⌀17 | 30 mm | ⌀9 · 2 steps | H7 | DIN 705 rigid | 54.23 ₺ |
| KAPA-RJK-10 | ⌀18 | 33 mm | ⌀10 · 2 steps | H7 | DIN 705 rigid | 58.02 ₺ |
| KAPA-RJK-11 | ⌀19 | 35 mm | ⌀11 · 2 steps | H7 | DIN 705 rigid | 60.78 ₺ |
| KAPA-RJK-12 | ⌀20 | 38 mm | ⌀12 · 2 steps | H7 | DIN 705 rigid | 64.79 ₺ |
Steel · for 100 pcs · estimated unit price, valid 7 days · excl. VAT · Contact us for a firm quote.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. For custom sizes/tolerances, contact us with the part code.
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