Flexible Coupling Hub
Single-diameter bored clamp hub that mates a shaft into a flexible coupling body.
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 11 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KAPA-EKG-03 | 9 | 16 | ⌀3 | H7 | AGK clamping hub |
| KAPA-EKG-04 | 10 | 18 | ⌀4 | H7 · ⌀4: +0.012/0 | AGK clamping hub |
| KAPA-EKG-05 | 11 | 19 | ⌀5 | H7 · ⌀5: +0.012/0 | AGK clamping hub |
| KAPA-EKG-06 | 12 | 20 | ⌀6 | H7 · ⌀6: +0.012/0 | AGK clamping hub |
| KAPA-EKG-06B | 13 | 20 | ⌀6.35 | H7 · ⌀6.35: +0.015/0 | 1/4 inch hub |
| KAPA-EKG-07 | 14 | 22 | ⌀7 | H7 · ⌀7: +0.015/0 | AGK clamping hub |
| KAPA-EKG-08 | 15 | 24 | ⌀8 | H7 · ⌀8: +0.015/0 | AGK clamping hub |
| KAPA-EKG-09 | 16 | 25 | ⌀9 | H7 · ⌀9: +0.015/0 | AGK clamping hub |
| KAPA-EKG-10 | 17 | 26 | ⌀10 | H7 · ⌀10: +0.015/0 | AGK clamping hub |
| KAPA-EKG-11 | 18 | 28 | ⌀11 | H7 · ⌀11: +0.018/0 | AGK clamping hub |
| KAPA-EKG-12 | 19 | 30 | ⌀12 | H7 · ⌀12: +0.018/0 | AGK clamping hub |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Flexible Coupling Hub is a Couplings & Shaft Adapters family precision-turned on a Goodway SW-20, covering 11 variants — diameters ⌀9–19 mm, lengths 16–30 mm, standard material Aluminium (also steel, stainless steel or brass). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is KAPA-EKG-12 at 30 mm. The family is produced by turning alone. Bores in this family run ⌀3–12 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-EKG-04: 18 mm long at ⌀10 mm, L/D 1.8. 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-EKG-03 (⌀9 mm) and the largest KAPA-EKG-12 (⌀19 mm). The family includes bored variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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