Standard_Parts_Catalogue

Page 737 | 2.4 Tensioning with Clamping Mechanisms 1 Size 2 Type How to order 1 2 GN820.4-230-VLC Information • Steel - - Case-hardened steel C10 Zinc plated, blue passivated - - Bearing pins tempered - - Bearing rivets case-hardened • All moving parts Lubricated with special grease • Solid designed plastic handle Red, oil resistant • Clamping screw GN 708.1, type A - - Steel, zinc plated, blue passivated - - Rubber thrust pad 85 Shore A • RoHS Specification Toggle clamps GN 820.4 have a safety function whereby, during closing, a spring loaded safety hook latch ensures a secure locking connection. It prevents the inadvertent unlocking of the clamp due to vibrations or an accidental attempt of loosening / opening of the clamp. To open and release the clamp, pull up on the finger grip to disengage the safety hook latch mechanism (one hand operation). They work according to the toggle principle: lever and clamping bar move in the opposite direction. They require less space for the clamping action. Toggle clamps with forked clamping arm, with two flanged washers (type VL) can accommodate an application specific clamping screw. A spindle assembly with neoprene rubber tip is also included for type VLC. see also... • General Information for Toggle Clamps → Page 698 • Toggle Clamps GN 820.3 (with Horizontal Mounting Base, with Extended Clamping Arm) → Page 732 • Clamping Screws → Page 810 ff. • Holders for Clamping Screws GN 801 (for Type VL) → Page 815 • Clamping Arm Extenders GN 801.1 (for Type VL) → Page 816 • Clamping Arm Extenders GN 801.2 (for Type VL) → Page 817 Accessory GN 820.4 Toggle Clamps continued