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Data Sheet Metal Bellows Coupling Model 8690

Data Sheet Metal Bellows Coupling Model 8690

Data Sheet Metal Bellows Coupling Model 8690

Product catalog summary
Product Description: The document describes the 8695-type steel bellow coupling used for torque transmission in sensors and plant shafts. It compensates for slight axial, angular, or lateral shifts that may occur even after careful alignment, preventing measurement interference and sensor damage at high speeds. The coupling uses a clamping hub for torque transmission and adapts to the existing shaft diameter, ensuring mechanical integration without further adaptations. The stainless steel bellow ensures a lossless torque transfer due to its elastic yet stiff properties.
Highlights: The coupling supports rated torques from 0 to ±1000 N·m, adapts to required shaft diameters, and accurately transmits angle and torque. It is suitable for both dynamic and static applications.
Options: Keyways and finely balanced versions are available.
Applications: The coupling facilitates simple assembly and safe integration of torque sensors while compensating for shaft diameter variations.
Technical Data: The document provides detailed specifications for various models, including nominal torque, possible bore diameters, overall length, outer diameter, fitting length of hub, screws, distance between centers, moment of inertia, torsional stiffness, maximum axial, lateral, and angular values, operating temperature range, tightening torque, overload protection, material composition, maximum speed, and weight.
Mounting Instructions: The document outlines the mounting process, which involves two different attachment systems depending on the rated torque. For 0.5 N·m, radial set screws are used, while for 2 N·m and above, a clamping hub with a single clamping screw is used. The installation requires clean shafts and a clearance fit similar to the sensor shaft. A hexagon socket wrench is typically sufficient for assembly and disassembly.
Order Code: The document provides order codes for different nominal torques and specifies options for bore sizes, keyways, and finely balanced designs.
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Catalog excerpts

Data Sheet Metal Bellows Coupling Model 8690-1

Delivery: ex stock/3 weeks | Warranty: 24 months Metal Bellows Coupling ■ Rated torques from 0 ... ±0,5 N-m to 0 ... ±1000 N-m ■ Adaptation to the required shaft diameter ■ Accurate transmission of angle and torque ■ Suitable for dynamic and static application ■ Finely balanced version ■ Simple assembly and safe integration of torque sensors ■ Compensation of shaft diameter Even after careful alignment of the shaft ends of the sensors with the shaft ends of the plant; slight axial, angular or lateral shift must be anticipated. These interfere with the measurement and can lead to damage on the sensor in the event of high speeds. The 8695-type steel bellow coupling is fastened, using a clamping hub per torque transmission, to the sensor and plant shafts. The facility-side bore is adapted to the existing shaft diameter, which means that the torque sensor can be mechanically integrated without further adaptations. A stainless steel bellow transmits the torque between the clamping hubs without backlash. Through its highly elastic but stiff material properties, a lossless transfer of the torque transmission is guaranteed. Axial, angular and lateral shifts caused by assembly and construction are effectively compensated. burster Sensors and Process Instruments - Technical changes reserved. All data sheets at www.burster.com

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Data Sheet Metal Bellows Coupling Model 8690-2

Max. speed in finely balanced design on request burster Sensors and Process Instruments - Technical changes reserved. All data sheets at www.burster.com

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Data Sheet Metal Bellows Coupling Model 8690-3

Dimensional drawing Model 8695 For detailed dimensions, you can find the CAD data of the sensor on our website www.burster.de Mounting instructions burster Sensors and Process Instruments - Technical changes reserved. All data sheets at www.burster.com

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Data Sheet Metal Bellows Coupling Model 8690-4

Order Code Nominal torque burster Sensors and Process Instruments - Technical changes reserved. All data sheets at www.burster.com

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