Tapered Guide Rod
Piston guide rod with full-length taper and precision plunge tip.
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 |
|---|---|---|---|---|---|
| HIDA-KYM-05 | 6 | 42 | taper | h9 · ⌀6: 0/−0.030 | — |
| HIDA-KYM-06 | 8 | 50 | taper | h9 · ⌀8: 0/−0.036 | — |
| HIDA-KYM-08 | 10 | 58 | taper | h9 · ⌀10: 0/−0.036 | — |
| HIDA-KYM-08T | 10 | 56 | M8 · taper | 6g | M8 threaded connection |
| HIDA-KYM-10 | 12 | 66 | taper | h9 · ⌀12: 0/−0.043 | — |
| HIDA-KYM-10D | 12 | 66 | taper · ⌀4 | h9 · ⌀12: 0/−0.043 | ⌀4 lubrication hole |
| HIDA-KYM-12 | 14 | 74 | taper | h9 · ⌀14: 0/−0.043 | — |
| HIDA-KYM-14 | 16 | 82 | taper | h9 · ⌀16: 0/−0.043 | — |
| HIDA-KYM-16 | 18 | 90 | taper | h9 · ⌀18: 0/−0.043 | — |
| HIDA-KYM-18 | 20 | 98 | taper | h9 · ⌀20: 0/−0.052 | max dia AF20 |
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
Tapered Guide Rod is a Hydraulic & Pneumatic Pistons family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀6–20 mm, lengths 42–98 mm, standard material Brass (also steel, stainless steel 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 HIDA-KYM-18 at 98 mm. Besides turning, the family requires thread turning (M8), taper turning and axial drilling (⌀4 mm). All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is HIDA-KYM-05: 42 mm long at ⌀6 mm, a length-to-diameter ratio of 7.0. 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 h9, 6g tolerance classes; the smallest is HIDA-KYM-05 (⌀6 mm) and the largest HIDA-KYM-18 (⌀20 mm). The family includes threaded, tapered, bored, 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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