Spacer Ring
Plain through-bore spacer ring setting axial distance between optics in a barrel.
Manufacturing Scope
Spacer Ring is a Opto-Mechanical Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–20 mm, lengths 3–25 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.
The family is machined from ⌀20 mm bar stock; its longest variant is OPTA-SPR-20 at 25 mm. The family is produced by turning alone. Bores in this family run ⌀6–17 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 OPTA-SPR-20: 25 mm long at ⌀20 mm, L/D 1.3. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h6 tolerance; the smallest is OPTA-SPR-08 (⌀8 mm) and the largest OPTA-SPR-20 (⌀20 mm). The family includes bored variants. Custom sizes, tolerances or materials are produced to the part code on request.
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 | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| OPTA-SPR-08 | ⌀8 | 3 mm | ⌀6 | h6 | clearance 3 mm | 23.51 ₺ |
| OPTA-SPR-10 | ⌀10 | 4 mm | ⌀7 | h6 | clearance 4 mm | 24.53 ₺ |
| OPTA-SPR-11 | ⌀11 | 5 mm | ⌀8 | h6 | clearance 5 mm | 25.36 ₺ |
| OPTA-SPR-12 | ⌀12 | 6 mm | ⌀9 | h6 | clearance 6 mm | 26.21 ₺ |
| OPTA-SPR-13 | ⌀13 | 8 mm | ⌀10 | h6 | clearance 8 mm | 27.71 ₺ |
| OPTA-SPR-14 | ⌀14 | 10 mm | ⌀11 | h6 | clearance 10 mm | 29.24 ₺ |
| OPTA-SPR-15 | ⌀15 | 12 mm | ⌀12 | h6 | clearance 12 mm | 30.82 ₺ |
| OPTA-SPR-16 | ⌀16 | 15 mm | ⌀13 | h6 | clearance 15 mm | 33.09 ₺ |
| OPTA-SPR-18 | ⌀18 | 20 mm | ⌀15 | h6 | clearance 20 mm | 37.15 ₺ |
| OPTA-SPR-20 | ⌀20 | 25 mm | ⌀17 | h6 | clearance 25 mm | 41.46 ₺ |
Aluminium · for 100 pcs · estimated unit price, valid 7 days · excl. VAT · Contact us for a firm quote.
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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