Knurled Shaft Coupling
Shaft coupling element with knurled grip and 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-TML-01 | 8 | 20 | knurl · ⌀3 · 2 steps | h9 | M3 thread |
| KAPB-TML-02 | 10 | 24 | knurl · ⌀4 · 2 steps | h9 | M4 thread |
| KAPB-TML-03 | 12 | 26 | knurl · ⌀5 · 2 steps | h9 | M5 thread |
| KAPB-TML-04 | 12 | 30 | knurl · ⌀6 · 2 steps | h9 | M6 thread |
| KAPB-TML-05 | 14 | 30 | knurl · ⌀6 · 2 steps | h9 | M6 thread |
| KAPB-TML-06 | 14 | 34 | knurl · ⌀8 · 2 steps | h9 | M8 thread |
| KAPB-TML-07 | 16 | 34 | knurl · ⌀8 · 2 steps | h9 · ⌀16: 0/−0.043 | M8 thread |
| KAPB-TML-08 | 16 | 38 | knurl · ⌀10 · 2 steps | h9 · ⌀16: 0/−0.043 | M10 thread |
| KAPB-TML-09 | 18 | 40 | knurl · ⌀10 · 2 steps | h9 · ⌀18: 0/−0.043 | M10 thread |
| KAPB-TML-10 | 20 | 42 | knurl · ⌀12 · 2 steps | h9 | M12 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
Knurled Shaft Coupling is a Couplings & Shaft Adapters family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–20 mm, lengths 20–42 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 KAPB-TML-10 at 42 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 KAPB-TML-01: 20 mm long at ⌀8 mm, L/D 2.5. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h9 tolerance; the smallest is KAPB-TML-01 (⌀8 mm) and the largest KAPB-TML-10 (⌀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?
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