Ganter Norm Standard Parts - Catalogue Page 1697
Commercial customer offer**Top sellers from Ganter Norm
Couplings Technical Information / Definition of Terms Rated torque The torque that the coupling can transmit continuously. This value allows for load fluctuations during operation so that rated torque compensation is not required when selecting the couplings (excluding Oldham types). Select a coupling such that the load torque generated during continuous operation does not exceed the rated torque. Maximum torque The torque that the coupling can transmit momentarily. Rotational speed The maximum rotational speed of the coupling was calculated based on a peripheral speed of 33 m/s. Tests have confirmed that the coupling will not sustain damage at this speed. Moment of inertia (rotating mass) This indicates the coupling’s resistance to rotation around its own axis. The lower the moment of inertia, the less load torque is required for starting and stopping the motor. Static torsional stiffness The static torsional stiffness indicates the number of degrees by which a coupling twists depending on the introduced torque. Torsional stiffness is generally indicated as torque per unit of arc (Nm/rad). To simplify the design process, the torsional stiffness can also be converted to degrees per Nm. Where: 360° 180° 2π rad = 360° 1 rad = = ≈ 57,3° 2π π Example: 500 Nm 57,3° 0,1146° Reciprocal ≈ Coupling with a torsional stiffness of 500 Nm/rad = 57,3° 500 Nm 1 Nm Slip torque Slip torque refers to the torque at which the shaft begins to slip out of the clamping hub. This presumes that the clamping hub was installed at the specified screw tightening torque. The slip torque values given in the table were derived from experimental testing. They are based on a shaft tolerance of h7, a shaft hardness of 34 to 40 HRC and the screw tightening torque for the clamping hub given in the table. The load torque must be less than the slip torque for which the coupling is designed. It is also necessary to take into account that the slip torques given in the table are lower than the indicated maximum torque values. If no slip torque is specified, then the maximum torque can be achieved. Because the slip torque changes due to operating conditions, the suitability of the selected coupling should be tested under real conditions. GN 2240 d1 d2 / d3 14 3 Slip torque in Nm ≈ 0,8 Tightening torque of the screw in Nm ≈ 0,5 14 4 1,4 0,5 14 5 2,1 0,5 14 6 1,3 0,25 20 5 4,9 1 20 6 6,4 1 20 8 9,4 1 30 8 9,3 3,5 30 10 14,6 3,5 Page 1696 | 3.6 Moving, Transferring, Connecting with Shafts and Joints
2210 Pages | Valid until 12/2026 | Previous page | Next page
Choose your language
Legal issues
The manufacturer is exclusively responsible for the content, price and article details of the products and offers presented in the catalogues. Subject to technical and optical changes by the manufacturer and errors excepted.
Request form for special products
The ToolTeam® Procurement Service
Are you looking for products that are shown in the catalogue but cannot be purchased directly online?Our procurement service will be pleased to make you a non-binding and individual offer.