Knurled Clamp Hub
Bored clamp hub with a central knurled band for a firm hand-grip during assembly.
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 |
|---|---|---|---|---|---|
| KAPA-SKG-03 | 11 | 20 | knurl · ⌀3 · 3 steps | H7 | knurled clamping hub |
| KAPA-SKG-04 | 12 | 21 | knurl · ⌀4 · 3 steps | H7 · ⌀4: +0.012/0 | knurled clamping hub |
| KAPA-SKG-05 | 13 | 23 | knurl · ⌀5 · 3 steps | H7 · ⌀5: +0.012/0 | knurled clamping hub |
| KAPA-SKG-06 | 14 | 24 | knurl · ⌀6 · 3 steps | H7 · ⌀6: +0.012/0 | knurled clamping hub |
| KAPA-SKG-07 | 15 | 26 | knurl · ⌀7 · 3 steps | H7 · ⌀7: +0.015/0 | knurled clamping hub |
| KAPA-SKG-08 | 16 | 27 | knurl · ⌀8 · 3 steps | H7 · ⌀8: +0.015/0 | knurled clamping hub |
| KAPA-SKG-09 | 17 | 29 | knurl · ⌀9 · 3 steps | H7 · ⌀9: +0.015/0 | knurled clamping hub |
| KAPA-SKG-10 | 18 | 30 | knurl · ⌀10 · 3 steps | H7 · ⌀10: +0.015/0 | knurled clamping hub |
| KAPA-SKG-11 | 19 | 32 | knurl · ⌀11 · 3 steps | H7 · ⌀11: +0.018/0 | knurled clamping hub |
| KAPA-SKG-12 | 20 | 33 | knurl · ⌀12 · 3 steps | H7 · ⌀12: +0.018/0 | knurled 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
Knurled Clamp Hub is a Couplings & Shaft Adapters family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀11–20 mm, lengths 20–33 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-SKG-12 at 33 mm. Besides turning, the family requires knurling. 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-SKG-03: 20 mm long at ⌀11 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-SKG-03 (⌀11 mm) and the largest KAPA-SKG-12 (⌀20 mm). The family includes knurled, 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?
Other Families in This Category
Back to categorySimilar Parts in Other Categories
Let Us Create a Solution Tailored to Your Needs
Contact us to discuss your project; let's work out the most suitable solution together.