Features
R+W bellows couplings are fatigue resistant and wear free for an infinite service life, as long as the technical limits are not exceeded
Overall shaft / hub clearance of 0.01 – 0.05 mm
Various materials, tolerances, dimensions and performance ratings available for custom applications on request
| BK3 15 | BK3 30 | BK3 60 | BK3 150 | BK3 200 | BK3 300 | BK3 500 | BK3 800 | BK3 1500 | BK3 4000 | BK3 6000 | BK3 10000 | ||||||||
| Model | BK3 15 48 | BK3 15 55 | BK3 30 57 | BK3 30 65 | BK3 60 66 | BK3 60 76 | BK3 150 75 | BK3 150 87 | BK3 200 78 | BK3 200 90 | BK3 300 89 | BK3 300 103 | BK3 500 97 | BK3 500 110 | BK3 800 114 | BK3 1500 141 | BK3 4000 195 | BK3 6000 210 | BK3 10000 217 |
| Rated torque (Nm) | 15 | 15 | 30 | 30 | 60 | 60 | 150 | 150 | 200 | 200 | 300 | 300 | 500 | 500 | 800 | 1,500 | 4,000 | 6,000 | 10,000 |
| Coupling length (mm) | 48 | 55 | 57 | 65 | 66 | 76 | 75 | 87 | 78 | 90 | 89 | 103 | 97 | 110 | 114 | 141 | 195 | 210 | 217 |
| Bore diameter from Ø to Ø H7 (mm) | 10-22 | 10-22 | 12-23 | 12-23 | 12-30 | 12-30 | 15-37 | 15-37 | 15-44 | 15-44 | 24-60 | 24-60 | 24-60 | 24-60 | 30-60 | 35-70 | 50-100 | 60-140 | 70-180 |
| Outside diameter (mm) | 49 | 49 | 55 | 55 | 66 | 66 | 81 | 81 | 90 | 90 | 110 | 110 | 124 | 124 | 133 | 157 | 200 | 253 | 303 |
| Torsional stiffness (10³ Nm/rad) | 20 | 15 | 39 | 28 | 76 | 55 | 175 | 110 | 191 | 140 | 450 | 350 | 510 | 510 | 780 | 1,304 | 3,400 | 5,700 | 10,950 |
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