Spherical Pin
Self-aligning joint pin with a spherical form machined on both ends.
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 | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| MAFA-SPP-04 | 4 | 20 | — | h6 · ⌀4: 0/−0.008 | double spherical end |
| MAFA-SPP-05 | 5 | 24 | — | h6 · ⌀5: 0/−0.008 | double spherical end |
| MAFA-SPP-06 | 6 | 28 | — | h6 · ⌀6: 0/−0.008 | double spherical end |
| MAFA-SPP-08 | 8 | 34 | — | h6 · ⌀8: 0/−0.009 | double spherical end |
| MAFA-SPP-06S | 8 | 36 | 2 steps | h6 | stepped shoulder + spherical end |
| MAFA-SPP-10 | 10 | 40 | — | h6 · ⌀10: 0/−0.009 | double spherical end |
| MAFA-SPP-08S | 10 | 44 | 2 steps | h6 · ⌀10: 0/−0.009 | stepped shoulder + spherical end |
| MAFA-SPP-12 | 12 | 48 | — | h6 · ⌀12: 0/−0.011 | double spherical end |
| MAFA-SPP-10S | 13 | 50 | 2 steps | h6 | stepped shoulder + spherical end |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Spherical Pin is a Joint & Pivot Elements family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀4–13 mm, lengths 20–50 mm, standard material Stainless Steel (also steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀14 mm bar stock; its longest variant is MAFA-SPP-10S at 50 mm. The family is produced by turning alone. 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 MAFA-SPP-04: 20 mm long at ⌀4 mm, L/D 5.0. This ratio is achievable on a conventional lathe as well; the sliding-head advantage in series work is that the part never leaves the machine, so the size does not drift from variant to variant.
Variants are machined to h6 tolerance; the smallest is MAFA-SPP-04 (⌀4 mm) and the largest MAFA-SPP-10S (⌀13 mm). The family includes multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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