The power transmission of the Baumannflex MM/MF shaft coupling is effected by a movable transmission element consisting of a three-layer spring body made of steel wire. The coupling is temperature resistant from -30 °C to +100 °C and has large compensation ranges. Various versions such as shaft – shaft or shaft – flange as well as hub materials made of steel or stainless steel are available.
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Baumannflex MM/MF
- From 2.5 – 440 Nm
- Rotation speed up to 20’000 rpm
- Temperatur range -30°C to +100°C
- Zero Backlash
- RoHs compliant
Model MM
| Model | Rated torque (Nm) | Misalignment parallel (mm) | Misalignment angular (°) | Misalignment axial (mm) | Max. rpm (min-1) | Torsional stiffness (Nm/rad) | Inertia (kg·m2) | Mass (kg) |
| MM-6K | 2.5 | 0.3 | 3 | ＋ 0.6 | 20000 | 143 | 7.65 × 10-7 | 0.03 |
| MM-8K | 5 | 0.3 | 3 | ＋ 0.8 | 15000 | 286.5 | 4.08 × 10-6 | 0.07 |
| MM-12K | 10 | 0.4 | 3 | ＋ 1.0 | 12000 | 573 | 1.43 × 10-5 | 0.14 |
| MM-14K | 10 | 0.5 | 3 | ＋ 1.0 | 10000 | 573 | 2.47 × 10-5 | 0.15 |
| MM-16K | 20 | 0.6 | 3 | ＋ 1.2 | 9000 | 1146 | 6.12 × 10-5 | 0.30 |
| MM-19K | 20 | 0.7 | 3 | ＋ 1.2 | 8000 | 1146 | 8.42 × 10-5 | 0.32 |
| MM-20K | 40 | 0.7 | 3 | ＋ 1.6 | 7000 | 2292 | 1.99 × 10-4 | 0.70 |
| MM-24K | 40 | 0.9 | 3 | ＋ 1.6 | 7000 | 2292 | 2.63 × 10-4 | 0.75 |
| MM-25K | 90 | 0.9 | 3 | ＋ 2.0 | 6000 | 3438 | 5.66 × 10-4 | 1.25 |
| MM-28K | 90 | 1.0 | 3 | ＋ 2.0 | 6000 | 2865 | 5.77 × 10-4 | 1.35 |
| MM-30K | 150 | 1.1 | 3 | ＋ 2.5 | 5000 | 4297 | 1.39 × 10-4 | 2.10 |
| MM-35K | 220 | 1.2 | 3 | ＋ 3.2 | 4500 | 6303 | 3.01 × 10-4 | 3.50 |
| MM-6K-S | 2.5 | 0.3 | 3 | ＋ 0.6 | 20000 | 143 | 7.65 × 10-7 | 0.03 |
| MM-8K-S | 5 | 0.3 | 3 | ＋ 0.8 | 15000 | 286.5 | 4.08 × 10-6 | 0.07 |
| MM-12K-S | 10 | 0.4 | 3 | ＋ 1.0 | 12000 | 573 | 1.43 × 10-5 | 0.14 |
| MM-16K-S | 20 | 0.6 | 3 | ＋ 1.2 | 9000 | 1146 | 6.12 × 10-5 | 0.30 |
| MM-20K-S | 40 | 0.7 | 3 | ＋ 1.6 | 7000 | 2292 | 1.99 × 10-4 | 0.70 |
| MM-25K-S | 90 | 0.9 | 3 | ＋ 2.0 | 6000 | 3438 | 5.66 × 10-4 | 1.25 |
Model MF
| Model | Rated torque (Nm) | Misalignment parallel (mm) | Misalignment angular (°) | Misalignment axial (mm) | Max. rpm (min-1) | Torsional stiffness (Nm/rad) | Inertia (kg·m2) | Mass (kg) |
| MF-8K | 5 | 0.3 | 3 | ＋ 0.8 | 15000 | 286.5 | 1.66 × 10-5 | 0.1 |
| MF-12K | 10 | 0.4 | 3 | ＋ 1.0 | 12000 | 573 | 3.32 × 10-5 | 0.16 |
| MF-16K | 20 | 0.6 | 3 | ＋ 1.2 | 9000 | 1146 | 9.18 × 10-5 | 0.31 |
| MF-20K | 40 | 0.8 | 3 | ＋ 1.6 | 7000 | 2292 | 2.12 × 10-4 | 0.5 |
| MF-25K | 90 | 0.9 | 3 | ＋ 2.0 | 6000 | 3438 | 5.33 × 10-4 | 0.9 |
| MF-30K | 150 | 1.1 | 3 | ＋ 2.5 | 5000 | 4297 | 1.35 × 10-3 | 1.7 |
| MF-35K | 220 | 1.2 | 3 | ＋ 3.2 | 4500 | 6303 | 2.86 × 10-3 | 2.8 |
Unit [mm]
| Model | d1/d2 Min. | d1/d2 Max. | D | L | L1 | E | F |
| MM-6K | 3 | 8 | 16 | 20 | 6 | 11 | 15.5 |
| MM-8K | 4 | 8 | 21 | 35 | 11 | 13 | 19 |
| MM-12K | 6 | 12 | 26 | 50 | 16.5 | 16.5 | 24 |
| MM-14K | 7 | 14 | 30 | 50 | 16.5 | 20.5 | 28 |
| MM-16K | 10 | 16 | 35 | 65 | 22 | 22.4 | 32 |
| MM-19K | 10 | 19 | 38 | 65 | 22 | 26.4 | 36 |
| MM-20K | 10 | 20 | 45 | 80 | 27 | 28 | 40 |
| MM-24K | 14 | 24 | 48 | 80 | 27 | 33 | 45 |
| MM-25K | 14 | 25 | 55 | 100 | 33.5 | 35 | 50 |
| MM-28K | 14 | 28 | 55 | 100 | 33.5 | 37 | 52 |
| MM-30K | 16 | 30 | 65 | 125 | 40 | 40.8 | 60 |
| MM-35K | 20 | 35 | 75 | 150 | 48 | 46 | 70 |
| MM-6K-S | 3 | 8 | 17 | 25 | 9 | 11 | 15.5 |
| MM-8K-S | 4 | 8 | 21 | 35 | 11 | 13 | 19 |
| MM-12K-S | 6 | 12 | 26 | 50 | 16.5 | 16.5 | 24 |
| MM-16K-S | 10 | 16 | 35 | 65 | 22 | 22.4 | 32 |
| MM-20K-S | 10 | 20 | 45 | 80 | 27 | 28 | 40 |
| MM-25K-S | 14 | 25 | 55 | 100 | 32.5 | 35 | 50 |
Unit [mm]
| Model | d1 Min. | d1 Max. | D | L | L1 | L2 | A | B | C | E | F | G | K |
| MF-8K | 4 | 8 | 21 | 30 | 11 | 6 | 42 | 30 | 18 | 13 | 19 | 1.5 | 3- ø 4.8 |
| MF-12K | 6 | 12 | 26 | 40 | 16.5 | 6 | 48 | 37 | 22 | 16.5 | 24 | 1.5 | 3- ø 4.8 |
| MF-16K | 10 | 16 | 35 | 50 | 22 | 6.5 | 58 | 47 | 30 | 22.4 | 32 | 1.5 | 4- ø 4.8 |
| MF-20K | 12 | 20 | 45 | 60 | 27 | 7 | 65 | 52 | 35 | 28 | 40 | 1.5 | 4- ø 4.8 |
| MF-25K | 14 | 25 | 55 | 75 | 33.5 | 8.5 | 75 | 62 | 42 | 35 | 50 | 1.5 | 6- ø 5.8 |
| MF-30K | 16 | 30 | 65 | 95 | 40 | 10 | 90 | 74.5 | 47 | 40.8 | 60 | 2.5 | 4- ø 7.0 |
| MF-35K | 20 | 35 | 75 | 115 | 48 | 13 | 100 | 84 | 57 | 46 | 70 | 2.5 | 6- ø 7.0 |
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