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Banjo Bolt

Hex-head hollow banjo bolt with axial bore and radial oil port.

Manufacturing Scope

Banjo Bolt is a Fittings family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀9.2–19.6 mm, lengths 16–33 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 RAKB-BNJ-11 at 33 mm. Besides turning, the family requires thread turning (7 sizes from M5 to M12x1.5), hex flat milling (AF 8–17) and axial drilling (⌀2.5–7 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 RAKB-BNJ-12: 22 mm long at ⌀11.5 mm, L/D 1.9. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.

Variants are machined to 6g tolerance; the smallest is RAKB-BNJ-08 (⌀9.2 mm) and the largest RAKB-BNJ-11 (⌀19.6 mm). The family includes threaded, hex-drive, bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.

Dimension SchematicRAKB-BNJ-09 — representative variant of this family
Ayyildiz RoboticsDimension Schematic⌀13.86 6gSW12⌀10M10x1.25641323⌀13.86Dimensions in mmCODERAKB-BNJ-09MATERIALSteelSIZE⌀13.9 × 23 · ⌀4.5TOLERANCE6g · fine-thread banjo; axial Ø4.5 bore

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.

Download drawing (PNG)

Code & Size Table

Code, dimensions and tolerance for all 9 variants.

CodeDia ⌀LengthFeatureToleranceStdUnit price
RAKB-BNJ-089.216 mmM5 · SW8 · ⌀2.56gmini banjo; axial Ø2.5 bore45.89 ₺
RAKB-BNJ-0411.519 mmM6 · SW10 · ⌀36gaxial Ø3 bore + radial oil hole51.39 ₺
RAKB-BNJ-1211.522 mmM6 · SW10 · ⌀36glong-thread banjo; axial Ø3 bore56.16 ₺
RAKB-BNJ-0513.922 mmM8 · SW12 · ⌀46gaxial Ø4 bore + radial oil hole57.24 ₺
RAKB-BNJ-0913.923 mmM10x1.25 · SW12 · ⌀4.56gfine-thread banjo; axial Ø4.5 bore55.60 ₺
RAKB-BNJ-0616.226 mmM10x1 · SW14 · ⌀56gaxial Ø5 bore + radial oil hole64.63 ₺
RAKB-BNJ-1016.224 mmM8x1 · SW14 · ⌀46gfine-thread banjo; axial Ø4 bore62.31 ₺
RAKB-BNJ-0719.629 mmM12x1.5 · SW17 · ⌀66gaxial Ø6 bore + radial oil hole74.54 ₺
RAKB-BNJ-1119.633 mmM12x1.5 · SW17 · ⌀76ghigh-flow banjo; axial Ø7 bore80.78 ₺

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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