BK6

Bellows couplings

The BK6 bellows coupling from R+W Couplings has a high degree of operational reliability and is suitable for axial mounting. The design of this precision coupling makes (dis)assembly very easy. The tapered press fit system allows the coupling to be mounted in two parts. This connection is also electrically insulating. The screws of the clamping hubs are tightened through the inside of the coupling. This friction clamp connection makes the coupling absolutely free of slippage. Thanks to the forced-shaped bellows, the element can simultaneously accommodate lateral, axial and angular misalignments. As long as they do not fall outside the maximum area, no metal fatigue will occur in the bellows material and the clutch is completely free of wear. For specific questions about bellows couplings, contact VARIODRIVE.

Implementation
Axial clamp hub with tapered press fit segment
Nom. Torque
15-1500 Nm
Speed
up to 10,000 rpm
Temperature range
-30 to +100 oC
Bellows material
STAINLESS STEEL
Hub material
Steel or Alu
Material segment
Fibreglass-reinforced plastic
Peak load
Up to 1.5x nom. Torque
Backlash
None
Service-life
No service
Optional
ATEX, clean room version

Datasheets
  • Bestelcode instructies
  • ATEX instructies
  • Datasheet BK6
Manuals
  • Manual BK/MK koppelingen
BK6 drawing
Tabel
BK6 Series1530601503005008001500
Rated torque (Nm)TKN1530601503005008001500
Overall length (inserted) (mm)A+0,558 | 6568 | 7679 | 8997 | 109113 | 127132 | 145140158
Inside diameter possible from Ø to Ø H7 (mm) DI10-2212-2412-3215-4024-5630-6040-6250-75
Inside diameter possible from Ø to Ø H7 (mm) D210-2212-2412-3215-4024-5630-6040-6250-75
Outside diameter (mm) B49556681110124133157
Moment of inertia (10-3 kgm2) Jges0,1 | 0,120,2 | 0,250,4 | 0,452,0 | 2,55,4 | 6,18,4 | 9,117,544
Approximate weight (kg) 0,3 | 0,320,5 | 0,520,82 | 0,841,6 | 1,74,1 | 4,26,0 | 6,38,116,2
Torsional stiffness (10³ Nm/rad) CT10 | 820 | 1438 | 2888 | 55225 | 175255 | 245400660
Lateral ± (mm) max.0,15 | 0,20,2 | 0,250,2 | 0,250,2 | 0,250,25 | 0,30,3 | 0,350,350,35
Angular ± (degree) max.1 | 1,51 | 1,51 | 1,51 | 1,51 | 1,51 | 1,51,51,5
Lateral spring stiffness (N/mm) cr475 | 137900 | 2701200 | 4201550 | 4353750 | 10502500 | 84020003600
Fastening screw (ISO 4762) EM4M5M5M6M8M8M10M12
Tightening torque of the fastening screw (Nm) E3,56,5812303255110
Mounting length (mm) Cl13,521,51823,527324253
Mounting length (mm) C229343949,559687490,5
Preload compression (mm) H0,2-1,00,5-1,00,5-1,50,5-1,50,5-1,51,0-2,01,0-2,00,5-1,5
Axial recovery force at maximum pretensioning (N) H20 | 1250 | 3070 | 4582 | 52157 | 106140 | 96400650
Axial* ± (mm) max.0,5 | 10,5 | 10,5 | 11 | 21,5 | 22,5 | 3,532
Diameter of clamping ring (mm) F46,5516074102114126146
Clamping ring length (mm) G9,510,511,517,520232732
1530601503005008001500
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Frequently Asked Questions

You can place an order with VARIODRIVE by sending your request to orders@variodrive.nl. Your request will then be processed directly by our internal sales team.

By choosing VARIODRIVE’s complete solution, you won’t need to worry about integrating different drive components into the machine’s drive chain. We stand behind our complete solution and can guarantee its functionality.

Due to our in-depth knowledge of our products and their integration into applications, we can provide a system warranty. At that point, we guarantee that the application will function using our motion control and traction solutions.

For most products on our website, you can download the 3D files. If the desired 3D file is not available, please contact sales@variodrive.nl, and we will send you the 3D file as soon as possible.

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