Standard_Parts_Catalogue

Page 676 | 2.3 Tensioning with Eccentric Cams and Wedge Clamps Clamping with the wedge clamps GN 920.1 is achieved via the socket cap screw and the clamp wedge which cause both clamping jaws to move outward. When loosening the screw, the clamp wedge is returned via an internal return spring which, in turn, loosens the tension. Wedge clamps are ideal for multiple clamping operations, but they are also suitable for clamping individual workpieces. The slotted hole in the clamp wedge serves to compensate tolerances in the workpiece. see also... • Pull-Down Plates GN 920.2 (for Wedge Clamps GN 920.1 with Pull-Down Effect) → Page 678 Information GN 920.1 Wedge Clamps 1 d 2 b 3 Type How to order 1 2 3 GN920.1-M8-32-RF 3 Type GL Smooth clamping surfaces GA With 2 fixing threads for attachment jaws RF Ribbed clamping surfaces • Steel - - Wedge surfaces hardened - - Blackened • Socket cap screw DIN 7984 Property class 10.9 • Strength Values of Screws → Page 2152 • RoHS Specification 1 2 d b a h 1 h 2 h 3 Length l m Clamping force per clamping jaw in kN Max. tightening torque in Nm Type GA / Type GL Type RF Type GA max. Type GA min. max. min. max. M  8 21 39,5 44,5 34,5 39,5 15 4,5 7,5 15 10 15 25 M  8 25 39,5 44,5 34,5 39,5 15 4,5 7,5 15 12 15 25 M  8 32 39,5 44,5 34,5 39,5 15 4,5 7,5 15 16 15 25 M  8 40 39,5 44,5 34,5 39,5 15 4,5 7,5 15 20 15 25 M  8 50 39,5 44,5 34,5 39,5 15 4,5 7,5 15 30 15 25 M 12 40 40   45,5 40   45,5 22 4,5 11   21 20 30 85 M 12 50 40   45,5 40   45,5 22 4,5 11   21 30 30 85