Standard_Parts_Catalogue

Page 1390 | 3.3 Hinging, Latching, Locking of Doors and Covers GN 437 Hinges Zinc Die Casting / Stainless Steel with Adjustable Friction 1 Material 2 l 1 3 l 2 4 Type 5 Finish How to order 1 2 3 4 5 GN437-ZD-60-60-A-SR 4 Type A 2x2 bores for countersunk screw 2 3 l 1 l 2 d h 1 h 2 h 3 h 4 l 3 m 1 m 2 A/F Max. recommended tightening torque of the setting screw in Nm Friction torque in Nm ≈ ZD A4 40 40 5,3 13,5 5   7   14 13   25 25 2,5 0,5   2 3 50 50 6,5 15,5 6   8   16 16,5 30 30 3   0,75 4 4 60 60 8,3 18,5 7,5 9,5 19 20   36 36 4   1,5 6,5 6 The setting screw in the hinges GN 437 allows the mobility of the hinge to be changed. This also generates a constant braking torque adjustable across the whole of the rotating range. The rotation of doors and flaps is so inhibited, also preventing the inadvertent movement. The friction torque is accomplished by interlocking two slim friction co- nes. The large friction surface and the hard-wearing plastic of the fric- tion cones guarantee a long service life with only slight reduction in the friction torque over time. This can be re-adjusted, if necessary, with the setting screw. Owing to the structure and the prestress of the friction cones, the hinge has virtually no radial play and no play at all in axial direction. The stain- less steel version is particularly suited for applications in highly aggres- sive conditions. see also... • List of Hinge Types → Page 1284 ff. • Hinges GN 233 (with Adjustable Friction) → Page 1392 • Hinges GN 437.1 → Page 1299 • Hinges GN 437.2 (with Clamp) → Page 1396 Information • Zinc die casting ZD Powder coated Black, RAL 9005, textured finish SW Silver, RAL 9006, textured finish SR • Stainless steel AISI 316 A4 Matte shot-blasted GS • Friction cone Plastic (Polyacetal POM) Black, RAL 9005 Temperature resistant up to 80 °C • Setting screw - - Steel, zinc plated, blue passivated for ZD - - Stainless steel A4 for A4 • Hexagon nut - - Steel, zinc plated, blue passivated for ZD - - Stainless steel AISI 316LHC for A4 • Load Rating Information → Page 2126 • Plastic Characteristics → Page 2158 • Stainless Steel Characteristics → Page 2166 • RoHS Specification 1 5 • Stainless Steel Spacer Plates GN 2370 → Page 1350 Accessory