Tapered Hub
Taper-fit shaft hub with internal thread.
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 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KAPB-KGB-01 | 8 | 22 | taper · ⌀3 | h8 · ⌀8: 0/−0.022 | M3 thread |
| KAPB-KGB-02 | 10 | 26 | taper · ⌀4 | h8 · ⌀10: 0/−0.022 | M4 thread |
| KAPB-KGB-03 | 12 | 28 | taper · ⌀5 | h8 · ⌀12: 0/−0.027 | M5 thread |
| KAPB-KGB-04 | 12 | 32 | taper · ⌀5 | h8 · ⌀12: 0/−0.027 | M5 thread |
| KAPB-KGB-05 | 14 | 34 | taper · ⌀6 | h8 · ⌀14: 0/−0.027 | M6 thread |
| KAPB-KGB-06 | 14 | 38 | taper · ⌀6 | h8 · ⌀14: 0/−0.027 | M6 thread |
| KAPB-KGB-07 | 16 | 40 | taper · ⌀8 | h8 · ⌀16: 0/−0.027 | M8 thread |
| KAPB-KGB-08 | 16 | 44 | taper · ⌀8 | h8 · ⌀16: 0/−0.027 | M8 thread |
| KAPB-KGB-09 | 18 | 46 | taper · ⌀10 | h8 · ⌀18: 0/−0.027 | M10 thread |
| KAPB-KGB-10 | 20 | 50 | taper · ⌀10 | h8 · ⌀20: 0/−0.033 | M10 thread |
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
Tapered Hub is a Couplings & Shaft Adapters family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–20 mm, lengths 22–50 mm, standard material Stainless Steel (also steel, brass or aluminium). 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 KAPB-KGB-10 at 50 mm. Besides turning, the family requires taper turning and axial drilling (⌀3–10 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 KAPB-KGB-01: 22 mm long at ⌀8 mm, L/D 2.8. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h8 tolerance; the smallest is KAPB-KGB-01 (⌀8 mm) and the largest KAPB-KGB-10 (⌀20 mm). The family includes tapered, bored, multi-step 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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