Overview: The document provides technical specifications for metal bellows couplings, specifically the KG series, designed for high-temperature applications up to 300°C. These couplings are characterized by their all-metal construction, wear and maintenance-free operation, torsional stiffness, and easy installation with an EASY-
clamping hub.
Specifications:- Material: Bellows are made from stainless steel 1.4571, hubs from steel St 52 (burnished), and screws conform to ISO 4762 / 12.9.
- Temperature Range: -40°C to +300°C.
- Design Variability: Available in 2W, 4W, and 6W corrugated metal bellows versions, with alternative lengths and hub versions available upon request.
- Connection Method: Bellows and hub are connected via plasma welding.
Technical Data:- Dimensions: Length dimensions follow DIN ISO 2768 cH standards.
- Order Examples: KG 40 / 4W D1 = 16 G7 D2 = 24 H7, KG 400 / 2W D1 = 32 G7 D2 = 35 G7, KG 2000 / 6W D1 = 65 G7 D2 = 75 G7.
- Performance Metrics: Includes nominal torque (Tn), moment of inertia, torsional stiffness, maximum shaft misalignment, axial and lateral spring rates, and maximum rotational speed (nmax).
Performance Table: The document includes a detailed table listing various sizes (40 to 3000), their corresponding nominal torque, moment of inertia, torsional stiffness, maximum shaft misalignment, axial and lateral spring rates, and maximum rotational speed.
Installation and Dimensions: The document provides specific dimensions for each coupling size, including diameter, length, and mass, along with the required torque for installation screws.
Notes: For sizes KG 2000/3000, technical data for bellows version 4W/6W is provided instead of 2W/4W. For smaller nominal torques, the miniature couplings series MKG is recommended.
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