R+W Antriebselemente GmbH
R+W - BKH BELLOWS COUPLING
BACKLAY-FREE, TORSIONALLY RIGID AND ULTRA-PRECISE: METAL BELLOWS COUPLINGS FROM R+W
High-precision metal bellows couplings are used in all applications that require precise positioning: medical technologies, test benches, wind turbines or ultra-dynamic servo axes in machine tools, woodworking machines, manufacturing machines. packaging, etc. As a leading supplier, R+W strives to continually expand its range of metal bellows couplings for various applications in the most diverse sizes and designs.
MODE OF OPERATION: METAL BELLOWS COUPLINGS
Metal bellows couplings are particularly suitable for direct drives. The typical metal bellows is the key element of this coupling. It compensates for axial and angular misalignments for low restoring forces. The backlash-free, torsionally rigid metal bellows couplings ensure precise positioning of the drive unit and can be used in ultra-dynamic applications up to over 10,000 rpm on a finely balanced model.
- Structure :
- both halves of the clamping hub are removable in one direction. With split clamping hubs and 2 side ISO 4762 screws per hub side.
- The unbalance of the clamping hubs due to the construction is compensated by balancing bores inside the hub.
- Temperature range: -30 to +120°C
- Backlash: Absolutely backlash-free thanks to a tight, force-bonded connection and a proven principle.
- Lifespan: metal bellows couplings are very durable and maintenance-free if the technical instructions are followed.
- Tolerance clearance: of the shaft-hub connection 0.01 - 0.05 mm
- Material :
- highly elastic stainless steel bellows (elastic, flexible coupling)
- hub material, see table
- Brief overload: possible at 1.5 times the value.
- Technical characteristics :
- nominal torque: 15 - 1,500 Nm
- rotation speeds up to 10,000 rpm Standard
- Ø 10,000 rpm on finely balanced model
- Special metal bellows coupling solutions: such as other bore tolerances, keyways, special material and bellows possible at short notice
- Properties of the metal bellows coupling, model BKH:
- Radial mounting possible
- Reduced mounting space
- Low moment of inertia;