Bored Micro Shaft
Precision micro shaft with an axial bore for lightweight sleeves.
Manufacturing Scope
Bored Micro Shaft is a Micro & Watch Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀2–6 mm, lengths 16–60 mm, standard material Aluminium (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.
Variants are machined to H7 tolerance; the smallest is MIKA-BOR-20 (⌀2 mm) and the largest MIKA-BOR-60L (⌀6 mm). The family includes bored variants. Custom sizes, tolerances or materials are produced to the part code on request.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| MIKA-BOR-20 | ⌀2 | 16 mm | ⌀1 | H7 | — |
| MIKA-BOR-25 | ⌀2.5 | 20 mm | ⌀1.2 | H7 | — |
| MIKA-BOR-30 | ⌀3 | 24 mm | ⌀1.5 | H7 | — |
| MIKA-BOR-35 | ⌀3.5 | 28 mm | ⌀2 | H7 | — |
| MIKA-BOR-40 | ⌀4 | 32 mm | ⌀2 | H7 | — |
| MIKA-BOR-45 | ⌀4.5 | 36 mm | ⌀2.5 | H7 | — |
| MIKA-BOR-50 | ⌀5 | 40 mm | ⌀3 | H7 | — |
| MIKA-BOR-55 | ⌀5.5 | 44 mm | ⌀3 | H7 | — |
| MIKA-BOR-60 | ⌀6 | 48 mm | ⌀3.5 | H7 | — |
| MIKA-BOR-60L | ⌀6 | 60 mm | ⌀4 | H7 | — |
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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