Spacer Ring
Bored spacer ring setting axial distance between optical elements.
Manufacturing Scope
Spacer Ring is a Opto-Mechanical Parts family precision-turned on a Goodway SW-20, covering 12 variants — diameters ⌀6–20 mm, lengths 3–40 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 OPTB-SPR-12 at 40 mm. Besides turning, the family requires knurling. Bores in this family run ⌀3.2–16.2 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 OPTB-SPR-12: 40 mm long at ⌀20 mm, L/D 2.0. 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 OPTB-SPR-01 (⌀6 mm) and the largest OPTB-SPR-12 (⌀20 mm). The family includes knurled, bored, multi-step 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 12 variants.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| OPTB-SPR-01 | ⌀6 | 3 mm | ⌀3.2 | h8 | 3 mm spacing | 20.23 ₺ |
| OPTB-SPR-02 | ⌀8 | 5 mm | ⌀4.2 | h8 | 5 mm spacing | 21.31 ₺ |
| OPTB-SPR-03 | ⌀10 | 8 mm | ⌀6.2 | h8 | 8 mm spacing | 22.80 ₺ |
| OPTB-SPR-04 | ⌀10 | 10 mm | ⌀6.2 | h8 | 10 mm spacing | 23.51 ₺ |
| OPTB-SPR-05 | ⌀12 | 12 mm | ⌀8.2 | h8 | 12 mm spacing | 24.76 ₺ |
| OPTB-SPR-06 | ⌀12 | 15 mm | ⌀8.2 | h8 | 15 mm spacing | 25.86 ₺ |
| OPTB-SPR-07 | ⌀14 | 20 mm | ⌀10.2 | h8 | 20 mm spacing | 28.40 ₺ |
| OPTB-SPR-08 | ⌀14 | 18 mm | ⌀8.2 · 2 steps | h8 | stepped spacer collar | 28.34 ₺ |
| OPTB-SPR-09 | ⌀16 | 25 mm | ⌀12.2 | h8 | 25 mm spacing | 31.15 ₺ |
| OPTB-SPR-10 | ⌀16 | 30 mm | knurl · ⌀12.2 · 2 steps | h8 | knurled grip, 30 mm | 37.98 ₺ |
| OPTB-SPR-11 | ⌀18 | 30 mm | ⌀14.2 | h8 | 30 mm spacing | 34.15 ₺ |
| OPTB-SPR-12 | ⌀20 | 40 mm | ⌀16.2 | h8 | 40 mm long spacer collar | 39.63 ₺ |
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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