CPU Model
This coupling transmits power via pins and bushings. It features damping properties provided by the sliding surfaces of the pins and bushings, enabling stable rotational transmission while absorbing significant eccentricity and angular misalignment. Since the absorption of eccentricity and angular misalignment does not rely on deflection, axial reaction forces are minimized. The CPU model can accommodate angular misalignment of up to 4°.
[Specifications]
| Model | Rated torque [N·m] | Tolerance | Maximum rotational speed [min⁻¹] | Torsional spring constant [N·m/rad] | Moment of inertia [kg·m²] | Mass [kg] | Price [JPY] | |
|---|---|---|---|---|---|---|---|---|
| Eccentricity [mm] | Angular displacement [°] | |||||||
| CPU-26-A | 2.2 | 0.3 | 4 | 4000 | 600 | 3.57 × 10^(−6) | 0.04 | 8,380 |
| CPU-36-A | 10 | 0.4 | 4 | 3,500 | 1350 | 1.64 × 10^(−5) | 0.09 | 9,900 |
| CPU-46-A | 25 | 0.5 | 4 | 3,000 | 1650 | 5.33 × 10^(−5) | 0.19 | 13,750 |
- The maximum rotational speed does not take dynamic balance into account.
- The moment of inertia and mass are given for the maximum bore diameter.
[Dimensions]
Unit [mm]
| Model | d1・d2 | D | E | L | L1 | L2 | M | A | CAD File No. | |
|---|---|---|---|---|---|---|---|---|---|---|
| Min. | Max | |||||||||
| CPU-26-A | 6 | 12 | 26 | 0.3 | 36 | 12 | 4 | M3 | 9 | CPU-A1 |
| CPU-36-A | 8 | 18 | 36 | 0.3 | 44 | 15 | 4.75 | M4 | 13 | CPU-A2 |
| CPU-46-A | 10 | 22 | 46 | 0.3 | 54 | 18 | 6.5 | M5 | 16 | CPU-A3 |
- Insert the shaft to dimension L1. (Note: The shaft must not pass all the way through.)
- The dimensional tolerance for the mating shaft is h7.
[Standard Hole Diameter]
| Model | Standard hole diameter d1・d2 [mm] | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | |
| CPU-26-A | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||
| CPU-36-A | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
| CPU-46-A | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
- The range of hole diameters we can accommodate is between the minimum and maximum diameters listed in the dimension table; however, for hole diameters not listed in the table above, a separate machining fee will apply.
