BKH METAL BELLOWS COUPLING WITH SPLIT HUB
Specifications BKH
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 30 | |||
| Rated torque (Nm) | TKN | 30 | ||
| Overall length (mm) | A-2 | 69 | 77 | ||
| Fit length (mm) | C | 27 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 10-30 | ||
| Outside diameter (mm) | B | 55 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 0,14 | 0,15 | ||
| Approximate weight (kg) | 0,3 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 39 | 28 | ||
| Axial ± (mm)) | max. | 1 | 2 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 50 | 30 | ||
| Lateral spring stiffness (N/mm) | Cr | 900 | 270 | ||
| Fastening screw (ISO 4762) | E | M6 | ||
| Tightening torque of the fastening screw (Nm) | E | 15 | ||
| Distance between centerlines (mm) | F | 19 | ||
| Distance (mm) | G | 7,5 | ||
| Hub material | Aluminium optional Steel | |||
| Distance (mm) | H-2 | 35 | 43 | ||
| 30 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 60 | |||
| Rated torque (Nm) | TKN | 60 | ||
| Overall length (mm) | A-2 | 83 | 93 | ||
| Fit length (mm) | C | 31 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 12-35 | ||
| Outside diameter (mm) | B | 66 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 0,23 | 0,26 | ||
| Approximate weight (kg) | 0,4 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 76 | 55 | ||
| Axial ± (mm)) | max. | 1,5 | 2 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 72 | 48 | ||
| Lateral spring stiffness (N/mm) | Cr | 1200 | 420 | ||
| Fastening screw (ISO 4762) | E | M8 | ||
| Tightening torque of the fastening screw (Nm) | E | 40 | ||
| Distance between centerlines (mm) | F | 23 | ||
| Distance (mm) | G | 9,5 | ||
| Hub material | Aluminium optional Steel | |||
| Distance (mm) | H-2 | 41 | 51 | ||
| 60 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 80 | |||
| Rated torque (Nm) | TKN | 80 | ||
| Overall length (mm) | A-2 | 94 | 106 | ||
| Fit length (mm) | C | 36 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 14-42 | ||
| Outside diameter (mm) | B | 81 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 0,65 | 0,67 | ||
| Approximate weight (kg) | 0,8 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 129 | 85 | ||
| Axial ± (mm)) | max. | 2 | 3 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 48 | 32 | ||
| Lateral spring stiffness (N/mm) | Cr | 920 | 290 | ||
| Fastening screw (ISO 4762) | E | M10 | ||
| Tightening torque of the fastening screw (Nm) | E | 50 | ||
| Distance between centerlines (mm) | F | 27 | ||
| Distance (mm) | G | 12 | ||
| Hub material | Aluminium optional Steel | |||
| Distance (mm) | H-2 | 47 | 59 | ||
| 80 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 150 | |||
| Rated torque (Nm) | TKN | 150 | ||
| Overall length (mm) | A-2 | 95 | 107 | ||
| Fit length (mm) | C | 36 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 19-42 | ||
| Outside diameter (mm) | B | 81 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 2,5 | 3,2 | ||
| Approximate weight (kg) | 1,7 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 175 | 110 | ||
| Axial ± (mm)) | max. | 2 | 3 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 82 | 52 | ||
| Lateral spring stiffness (N/mm) | Cr | 1550 | 435 | ||
| Fastening screw (ISO 4762) | E | M10 | ||
| Tightening torque of the fastening screw (Nm) | E | 70 | ||
| Distance between centerlines (mm) | F | 27 | ||
| Distance (mm) | G | 12 | ||
| Hub material | Steel optional Aluminium | |||
| Distance (mm) | H-2 | 48 | 60 | ||
| 150 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 200 | |||
| Rated torque (Nm) | TKN | 200 | ||
| Overall length (mm) | A-2 | 105 | 117 | ||
| Fit length (mm) | C | 41 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 22-45 | ||
| Outside diameter (mm) | B | 90 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 4,5 | 5,4 | ||
| Approximate weight (kg) | 2,5 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 191 | 140 | ||
| Axial ± (mm)) | max. | 2 | 3 | ||
| Lateral ± (mm) | max. | 0,25 | 0,3 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 90 | 60 | ||
| Lateral spring stiffness (N/mm) | Cr | 2040 | 610 | ||
| Fastening screw (ISO 4762) | E | M12 | ||
| Tightening torque of the fastening screw (Nm) | E | 120 | ||
| Distance between centerlines (mm) | F | 31 | ||
| Distance (mm) | G | 12,5 | ||
| Hub material | Steel optional Aluminium | |||
| Distance (mm) | H-2 | 51 | 63 | ||
| 200 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 300 | |||
| Rated torque (Nm) | TKN | 300 | ||
| Overall length (mm) | A-2 | 111 | 125 | ||
| Fit length (mm) | C | 43 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 24-60 | ||
| Outside diameter (mm) | B | 110 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 8,5 | 10,5 | ||
| Approximate weight (kg) | 4 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 450 | 350 | ||
| Axial ± (mm)) | max. | 2,5 | 3,5 | ||
| Lateral ± (mm) | max. | 0,25 | 0,3 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 105 | 71 | ||
| Lateral spring stiffness (N/mm) | Cr | 3750 | 1050 | ||
| Fastening screw (ISO 4762) | E | M12 | ||
| Tightening torque of the fastening screw (Nm) | E | 130 | ||
| Distance between centerlines (mm) | F | 39 | ||
| Distance (mm) | G | 13 | ||
| Hub material | Steel optional Aluminium | |||
| Distance (mm) | H-2 | 55 | 69 | ||
| 300 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 500 | |||
| Rated torque (Nm) | TKN | 500 | ||
| Overall length (mm) | A-2 | 133 | 146 | ||
| Fit length (mm) | C | 51 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 35-60 | ||
| Outside diameter (mm) | B | 124 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 17,3 | 19,6 | ||
| Approximate weight (kg) | 7,5 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 510 | 500 | ||
| Axial ± (mm)) | max. | 2,5 | 3,5 | ||
| Lateral ± (mm) | max. | 0,3 | 0,35 | ||
| Angular ± (degree) | max. | 1|1,5 | ||
| Axial spring stiffness (N/mm) | Ca | 70 | 48 | ||
| Lateral spring stiffness (N/mm) | Cr | 2500 | 840 | ||
| Fastening screw (ISO 4762) | E | M16 | ||
| Tightening torque of the fastening screw (Nm) | E | 200 | ||
| Distance between centerlines (mm) | F | 41 | ||
| Distance (mm) | G | 16,5 | ||
| Hub material | Steel optional Aluminium | |||
| Distance (mm) | H-2 | 62 | 75 | ||
| 500 | ||||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 800 | ||
| Rated torque (Nm) | TKN | 800 | |
| Overall length (mm) | A-2 | 140 | |
| Fit length (mm) | C | 45 | |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 40-75 | |
| Outside diameter (mm) | B | 134 | |
| Moment of inertia (10-3 kgm2) | Jges. | 24,3 | |
| Approximate weight (kg) | 7 | ||
| Torsional stiffness (10³ Nm/rad) | CT | 780 | |
| Axial ± (mm)) | max. | 3,5 | |
| Lateral ± (mm) | max. | 0,35 | |
| Angular ± (degree) | max. | 1,5 | |
| Axial spring stiffness (N/mm) | Ca | 100 | |
| Lateral spring stiffness (N/mm) | Cr | 2000 | |
| Fastening screw (ISO 4762) | E | M16 | |
| Tightening torque of the fastening screw (Nm) | E | 250 | |
| Distance between centerlines (mm) | F | 48 | |
| Distance (mm) | G | 18 | |
| Hub material | Steel | ||
| Distance (mm) | H-2 | 65,5 | |
| 800 | |||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 1500 | ||
| Rated torque (Nm) | TKN | 1500 | |
| Overall length (mm) | A-2 | 166 | |
| Fit length (mm) | C | 55 | |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 50-80 | |
| Outside diameter (mm) | B | 157 | |
| Moment of inertia (10-3 kgm2) | Jges. | 49,2 | |
| Approximate weight (kg) | 12 | ||
| Torsional stiffness (10³ Nm/rad) | CT | 1304 | |
| Axial ± (mm)) | max. | 3,5 | |
| Lateral ± (mm) | max. | 0,35 | |
| Angular ± (degree) | max. | 1,5 | |
| Axial spring stiffness (N/mm) | Ca | 320 | |
| Lateral spring stiffness (N/mm) | Cr | 3600 | |
| Fastening screw (ISO 4762) | E | M20 | |
| Tightening torque of the fastening screw (Nm) | E | 470 | |
| Distance between centerlines (mm) | F | 55 | |
| Distance (mm) | G | 22,5 | |
| Hub material | Steel | ||
| Distance (mm) | H-2 | 71 | |
| 1500 | |||
| CAD |
| BKH Series | |
| Rated torque (Nm) | TKN |
| Overall length (mm) | A-2 |
| Fit length (mm) | C |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Axial ± (mm)) | max. |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Axial spring stiffness (N/mm) | Ca |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Distance between centerlines (mm) | F |
| Distance (mm) | G |
| Hub material | |
| Distance (mm) | H-2 |
| CAD Portal |
| BKH Serien | 4000 | ||
| Rated torque (Nm) | TKN | 4000 | |
| Overall length (mm) | A-2 | 225 | |
| Fit length (mm) | C | 85 | |
Inside diameter possible from Ø to Ø H7 (mm) | D1/D2 | 50-90 | |
| Outside diameter (mm) | B | 200 | |
| Moment of inertia (10-3 kgm2) | Jges. | 165 | |
| Approximate weight (kg) | 28 | ||
| Torsional stiffness (10³ Nm/rad) | CT | 3400 | |
| Axial ± (mm)) | max. | 3,5 | |
| Lateral ± (mm) | max. | 0,4 | |
| Angular ± (degree) | max. | 1,5 | |
| Axial spring stiffness (N/mm) | Ca | 565 | |
| Lateral spring stiffness (N/mm) | Cr | 6070 | |
| Fastening screw (ISO 4762) | E | M24 | |
| Tightening torque of the fastening screw (Nm) | E | 1200 | |
| Distance between centerlines (mm) | F | 65 | |
| Distance (mm) | G | 28 | |
| Hub material | Steel | ||
| Distance (mm) | H-2 | 109 | |
| 4000 | |||
| CAD |
Properties
- Design:
- Both clamping hubs are completely separable, due to split hubs and two radial screws ISO 4762 on each hub.
- Any imbalance of the clamping hubs is compensated for by balancing bores located on the inside of the hub.
- Temperature range: -30° C to +100° C (-22° F to +212° F)
- Backlash: Absolutely backlash-free due to frictional clamp connection.
- Service life: These couplings are maintenance-free if the technical ratings are not exceeded.
- Tolerance: On the hub/shaft connection 0.01 to 0.05 mm
- Material:
- Bellows made of highly flexible high-grade stainless steel.
- Hub material see table
- Brief overloads: Acceptable up to 1.5 times the value specified.
- Speeds: Up to 10,000 rpm, in excess of 10,000 available with a finely balanced version.
- Non-standard application: Custom designs with varied tolerances, keyways, non-standard material, bellows and ATEX designs are available upon request.
- Properties of Bellows Coupling model BKH:
- easy to mount
- suited for space restricted installations
- low moment of inertia
Overview