Taper Dowel Pin
Removable precision dowel with a 1:50 tapered body per DIN 1 for repeatable location.
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 |
|---|---|---|---|---|---|
| PIMA-TPR-03 | 3.4 | 20 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-04 | 4.5 | 25 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-05 | 5.6 | 30 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-06 | 6.8 | 40 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-06T | 6.8 | 52 | M5 · taper | h10 | DIN 7977 puller thread |
| PIMA-TPR-08 | 9 | 50 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-08T | 9 | 64 | M6 · taper | h10 | DIN 7977 puller thread |
| PIMA-TPR-10 | 11.2 | 60 | taper | h10 | DIN 1 / 1:50 |
| PIMA-TPR-10T | 11.2 | 76 | M8 · taper | h10 | DIN 7977 puller thread |
| PIMA-TPR-12 | 13.4 | 70 | taper | h10 | DIN 1 / 1:50 |
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
Taper Dowel Pin is a Pins family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀3.4–13.4 mm, lengths 20–76 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 ⌀14 mm bar stock; its longest variant is PIMA-TPR-10T at 76 mm. Besides turning, the family requires thread turning (M5, M6, M8) and taper turning. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is PIMA-TPR-06T: 52 mm long at ⌀6.8 mm, a length-to-diameter ratio of 7.6. A part this slender needs tailstock support on a conventional lathe. On a sliding-head lathe the guide bushing holds the bar right next to the cutting edge, so the part is machined without a centre.
Variants are machined to h10 tolerance; the smallest is PIMA-TPR-03 (⌀3.4 mm) and the largest PIMA-TPR-12 (⌀13.4 mm). The family includes threaded, tapered, 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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