BK8 | Metal Bellows Coupling

Flange Mounting For Robot Gears

The BK8 is designed so that one side has a clamping hub with a single radial clamping screw (ISO 4762) and 
the other side has a flange-connection along with a separate intermediate flange.
It has an operating temperature range of -30 to 100 °C and a speed rating of 10,000 RPM. R+W's BK8 Bellows Couplings are maintenance-free and have an infinite life,
 if the technical ratings are not exceeded.
The hubs are made of aluminum (Series 300
 and 1500 made of steel) and bellows are made of
 highly flexible, high-grade stainless steel. The intermediate flange is made of steel (standard). This is a zero backlash solution with high torsional rigidity. The compact design offers easy assembly and is well suited for space restricted installations.
*Custom designs with varied tolerances, key-ways, non-standard
 material and bellows are available upon request.

BK8 Series Variants

*See above picture for reference