Back-up Ring Support
Tapered-face ring supporting the seal against pressure extrusion.
Manufacturing Scope
Back-up Ring Support is a Hydraulic & Pneumatic Pistons family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀11–20 mm, lengths 5–8 mm, standard material Steel (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 HIDB-BUR-15 at 8 mm. Besides turning, the family requires taper turning. Bores in this family run ⌀6–16 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 HIDB-BUR-06: 5 mm long at ⌀11 mm, L/D 0.5. 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 HIDB-BUR-06 (⌀11 mm) and the largest HIDB-BUR-16 (⌀20 mm). The family includes tapered, 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 9 variants.
| Code | Dia ⌀ | Length | Feature | Tolerance | Std | Unit price |
|---|---|---|---|---|---|---|
| HIDB-BUR-06 | ⌀11 | 5 mm | taper · ⌀6 | H8 | anti-extrusion | 24.99 ₺ |
| HIDB-BUR-08 | ⌀13 | 5 mm | taper · ⌀8 | H8 | anti-extrusion | 25.70 ₺ |
| HIDB-BUR-10 | ⌀15 | 6 mm | taper · ⌀10 | H8 | anti-extrusion | 27.04 ₺ |
| HIDB-BUR-11 | ⌀16 | 6 mm | taper · ⌀11 | H8 | anti-extrusion | 27.43 ₺ |
| HIDB-BUR-12 | ⌀17 | 7 mm | taper · ⌀12 | H8 | anti-extrusion | 28.45 ₺ |
| HIDB-BUR-13 | ⌀18 | 7 mm | taper · ⌀13 | H8 | anti-extrusion | 28.87 ₺ |
| HIDB-BUR-14 | ⌀18.5 | 7 mm | taper · ⌀14 | H8 | anti-extrusion | 29.06 ₺ |
| HIDB-BUR-15 | ⌀19 | 8 mm | taper · ⌀15 | H8 | anti-extrusion | 29.90 ₺ |
| HIDB-BUR-16 | ⌀20 | 8 mm | taper · ⌀16 | H8 | anti-extrusion | 30.35 ₺ |
Steel · 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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