Shouldered Shaft OM
Bearing shaft with a thick shoulder boss and slender pilot journal.
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 | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| MILA-OM-04 | 8 | 30 | 2 steps | h7 | — |
| MILA-OM-05 | 10 | 38 | 2 steps | h7 | — |
| MILA-OM-06 | 12 | 42 | 2 steps | h7 | — |
| MILA-OM-07 | 13 | 48 | 2 steps | h7 | — |
| MILA-OM-08 | 14 | 52 | 2 steps | h7 | — |
| MILA-OM-10 | 16 | 62 | 2 steps | h7 | — |
| MILA-OM-12 | 18 | 72 | 2 steps | h7 · ⌀18: 0/−0.018 | — |
| MILA-OM-13 | 19 | 76 | 2 steps | h7 | — |
| MILA-OM-14 | 20 | 82 | 2 steps | h7 | — |
| MILA-OM-15 | 20 | 88 | 2 steps | h7 | — |
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
Shouldered Shaft OM is a Shafts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8–20 mm, lengths 30–88 mm, standard material Steel (also stainless 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 ⌀20 mm bar stock; its longest variant is MILA-OM-15 at 88 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 MILA-OM-15: 88 mm long at ⌀20 mm, L/D 4.4. 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 h7 tolerance; the smallest is MILA-OM-04 (⌀8 mm) and the largest MILA-OM-15 (⌀20 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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