BK6 METAL BELLOWS COUPLING WITH CONICAL SLEEVE AND TAPERED PRESS-FIT CONNECTION
Specifications BK6
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 30 | |||
| Rated torque (Nm) | TKN | 30 | ||
| Overall length (inserted) (mm) | A+0,5 | 68 | 76 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 12-24 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 12-24 | ||
| Outside diameter (mm) | B | 55 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 0,2 | 0,25 | ||
| Approximate weight (kg) | 0,5 | 0,52 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 20 | 14 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1 | 1,5 | ||
| Lateral spring stiffness (N/mm) | Cr | 900 | 270 | ||
| Fastening screw (ISO 4762) | E | M5 | ||
| Tightening torque of the fastening screw (Nm) | E | 6,5 | ||
| Mounting length (mm) | C1 | 21,5 | ||
| Mounting length (mm) | C2 | 34 | ||
| Preload compression (mm) | H | 0,5-1,0 | ||
| Axial recovery force at maximum pretensioning (N) | H | 50 | 30 | ||
| Axial* ± (mm) | max. | 0,5 | 1 | ||
| Diameter of clamping ring (mm) | F | 51 | ||
| Clamping ring length (mm) | G | 10,5 | ||
| 30 | ||||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 60 | |||
| Rated torque (Nm) | TKN | 60 | ||
| Overall length (inserted) (mm) | A+0,5 | 79 | 89 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 12-32 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 12-32 | ||
| Outside diameter (mm) | B | 66 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 0,4 | 0,45 | ||
| Approximate weight (kg) | 0,82 | 0,84 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 38 | 28 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1 | 1,5 | ||
| Lateral spring stiffness (N/mm) | Cr | 1200 | 420 | ||
| Fastening screw (ISO 4762) | E | M5 | ||
| Tightening torque of the fastening screw (Nm) | E | 8 | ||
| Mounting length (mm) | C1 | 18 | ||
| Mounting length (mm) | C2 | 39 | ||
| Preload compression (mm) | H | 0,5-1,5 | ||
| Axial recovery force at maximum pretensioning (N) | H | 70 | 45 | ||
| Axial* ± (mm) | max. | 0,5 | 1 | ||
| Diameter of clamping ring (mm) | F | 60 | ||
| Clamping ring length (mm) | G | 11,5 | ||
| 60 | ||||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 150 | |||
| Rated torque (Nm) | TKN | 150 | ||
| Overall length (inserted) (mm) | A+0,5 | 97 | 109 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 15-40 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 15-40 | ||
| Outside diameter (mm) | B | 81 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 2,0 | 2,5 | ||
| Approximate weight (kg) | 1,6 | 1,7 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 88 | 55 | ||
| Lateral ± (mm) | max. | 0,2 | 0,25 | ||
| Angular ± (degree) | max. | 1 | 1,5 | ||
| Lateral spring stiffness (N/mm) | Cr | 1550 | 435 | ||
| Fastening screw (ISO 4762) | E | M6 | ||
| Tightening torque of the fastening screw (Nm) | E | 12 | ||
| Mounting length (mm) | C1 | 23,5 | ||
| Mounting length (mm) | C2 | 49,5 | ||
| Preload compression (mm) | H | 0,5-1,5 | ||
| Axial recovery force at maximum pretensioning (N) | H | 82 | 52 | ||
| Axial* ± (mm) | max. | 1 | 2 | ||
| Diameter of clamping ring (mm) | F | 74 | ||
| Clamping ring length (mm) | G | 17,5 | ||
| 150 | ||||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 300 | |||
| Rated torque (Nm) | TKN | 300 | ||
| Overall length (inserted) (mm) | A+0,5 | 113 | 127 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 24-56 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 24-56 | ||
| Outside diameter (mm) | B | 110 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 5,4 | 6,1 | ||
| Approximate weight (kg) | 4,1 | 4,2 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 225 | 175 | ||
| Lateral ± (mm) | max. | 0,25 | 0,3 | ||
| Angular ± (degree) | max. | 1 | 1,5 | ||
| Lateral spring stiffness (N/mm) | Cr | 3750 | 1050 | ||
| Fastening screw (ISO 4762) | E | M8 | ||
| Tightening torque of the fastening screw (Nm) | E | 30 | ||
| Mounting length (mm) | C1 | 27 | ||
| Mounting length (mm) | C2 | 59 | ||
| Preload compression (mm) | H | 0,5-1,5 | ||
| Axial recovery force at maximum pretensioning (N) | H | 157 | 106 | ||
| Axial* ± (mm) | max. | 1,5 | 2 | ||
| Diameter of clamping ring (mm) | F | 102 | ||
| Clamping ring length (mm) | G | 20 | ||
| 300 | ||||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 500 | |||
| Rated torque (Nm) | TKN | 500 | ||
| Overall length (inserted) (mm) | A+0,5 | 132 | 145 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 30-60 | ||
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 30-60 | ||
| Outside diameter (mm) | B | 124 | ||
| Moment of inertia (10-3 kgm2) | Jges. | 8,4 | 9,1 | ||
| Approximate weight (kg) | 6,0 | 6,3 | |||
| Torsional stiffness (10³ Nm/rad) | CT | 255 | 245 | ||
| Lateral ± (mm) | max. | 0,3 | 0,35 | ||
| Angular ± (degree) | max. | 1 | 1,5 | ||
| Lateral spring stiffness (N/mm) | Cr | 2500 | 840 | ||
| Fastening screw (ISO 4762) | E | M8 | ||
| Tightening torque of the fastening screw (Nm) | E | 32 | ||
| Mounting length (mm) | C1 | 32 | ||
| Mounting length (mm) | C2 | 68 | ||
| Preload compression (mm) | H | 1,0-2,0 | ||
| Axial recovery force at maximum pretensioning (N) | H | 140 | 96 | ||
| Axial* ± (mm) | max. | 2,5 | 3,5 | ||
| Diameter of clamping ring (mm) | F | 114 | ||
| Clamping ring length (mm) | G | 23 | ||
| 500 | ||||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 800 | ||
| Rated torque (Nm) | TKN | 800 | |
| Overall length (inserted) (mm) | A+0,5 | 140 | |
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 40-62 | |
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 40-62 | |
| Outside diameter (mm) | B | 133 | |
| Moment of inertia (10-3 kgm2) | Jges. | 17,5 | |
| Approximate weight (kg) | 8,1 | ||
| Torsional stiffness (10³ Nm/rad) | CT | 400 | |
| Lateral ± (mm) | max. | 0,35 | |
| Angular ± (degree) | max. | 1,5 | |
| Lateral spring stiffness (N/mm) | Cr | 2000 | |
| Fastening screw (ISO 4762) | E | M10 | |
| Tightening torque of the fastening screw (Nm) | E | 55 | |
| Mounting length (mm) | C1 | 42 | |
| Mounting length (mm) | C2 | 74 | |
| Preload compression (mm) | H | 1,0-2,0 | |
| Axial recovery force at maximum pretensioning (N) | H | 400 | |
| Axial* ± (mm) | max. | 3 | |
| Diameter of clamping ring (mm) | F | 126 | |
| Clamping ring length (mm) | G | 27 | |
| 800 | |||
| CAD |
| BK6 Series | |
| Rated torque (Nm) | TKN |
| Overall length (inserted) (mm) | A+0,5 |
| Inside diameter possible from Ø to Ø H7 (mm) | D1 |
| Inside diameter possible from Ø to Ø H7 (mm) | D2 |
| Outside diameter (mm) | B |
| Moment of inertia (10-3 kgm2) | Jges. |
| Approximate weight (kg) | |
| Torsional stiffness (10³ Nm/rad) | CT |
| Lateral ± (mm) | max. |
| Angular ± (degree) | max. |
| Lateral spring stiffness (N/mm) | Cr |
| Fastening screw (ISO 4762) | E |
| Tightening torque of the fastening screw (Nm) | E |
| Mounting length (mm) | C1 |
| Mounting length (mm) | C2 |
| Preload compression (mm) | H |
| Axial recovery force at maximum pretensioning (N) | H |
| Axial* ± (mm) | max. |
| Diameter of clamping ring (mm) | F |
| Clamping ring length (mm) | G |
| CAD Portal |
| BK6 Serien | 1500 | ||
| Rated torque (Nm) | TKN | 1500 | |
| Overall length (inserted) (mm) | A+0,5 | 158 | |
Inside diameter possible from Ø to Ø H7 (mm) | D1 | 50-75 | |
Inside diameter possible from Ø to Ø H7 (mm) | D2 | 50-75 | |
| Outside diameter (mm) | B | 157 | |
| Moment of inertia (10-3 kgm2) | Jges. | 44 | |
| Approximate weight (kg) | 16,2 | ||
| Torsional stiffness (10³ Nm/rad) | CT | 660 | |
| Lateral ± (mm) | max. | 0,35 | |
| Angular ± (degree) | max. | 1,5 | |
| Lateral spring stiffness (N/mm) | Cr | 3600 | |
| Fastening screw (ISO 4762) | E | M12 | |
| Tightening torque of the fastening screw (Nm) | E | 110 | |
| Mounting length (mm) | C1 | 53 | |
| Mounting length (mm) | C2 | 90,5 | |
| Preload compression (mm) | H | 0,5-1,5 | |
| Axial recovery force at maximum pretensioning (N) | H | 650 | |
| Axial* ± (mm) | max. | 2 | |
| Diameter of clamping ring (mm) | F | 146 | |
| Clamping ring length (mm) | G | 32 | |
| 1500 | |||
| CAD |
Properties
- Design:
- One side concial sleeve with 6 fastening screws ISO 4762 and 3 draw-off threads.
- One side with backlash-free tapered concial sleeve with press fit connection and 3 draw-off screws
- Temperature range: -30° C to +100° C (-22° F to +212° F)
- Backlash: Absolutely backlash-free.
- Service life: The BK6 bellows couplings are maintenance-free and have an infinite life, if the tolerances are not exceeded.
- Tolerance: On the hub/shaft connection 0.01 to 0.05 mm.
- Material:
- Bellows made of highly flexible, high-grade stain less steel
- conical sleeves and tapered segment on bellows face are made of steel.
- Tapered segment on hub face: glass-fiber rein forced plastic molded onto a steel hub.
- Brief overload: Acceptable up to 1.5 times the value specified.
- Speeds: Up to 10,000 rpm, in excess of 10,000 rpm available with a finaly balanced version.
- Non-standard application: Custom designs with varied tolerances, keyways, non-standard material and bellows are available upon request.
- Properties of Bellows Coupling model BK6:
- for axial mounting
- absolutely backlash-free
- easy mounting and dismounting
- electrically and thermally insulated
- high degree of operating dependability
- torsionally rigid
- wear-free press-fit connection
Overview