Standard_Parts_Catalogue

Page 1835 | 3.7 Connecting, Assembling with Clamping and Connecting Elements 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Construction tubes GN 990 can be supplied in these standard lengths. The tolerances specified for the outside diameter of the round construction tubes comply with the requirements for split mono-block connector clamps. Two-piece connector clamps allow obviously larger tolerances on construction tubes. see also... • Retaining Tubes / Retaining Rods GN 480.1 → Page 1833 • Tube End Plugs GN 991 (without Thread) → Page 1837 • Insert Bushings GN 448 (with Thread) → Page 1498 / 1499 • Insert Bushings GN 992 / GN 992.5 (with Thread) → Page 1501 Information Specification 4 • Aluminum AL Anodized EL Natural color • Stainless steel AISI 304 NI Plain BL Untreated • Sawed cross sections deburred blank, i.e. not surface treated • Stainless Steel Characteristics → Page 2166 • RoHS 1 GN 990 Construction Tubes Aluminum / Stainless Steel for Tube Clamp Connectors 2 2 3 d 1 Diameter s 1 Square Length I ±0,5 d 2 s 2 w 1 w 2 AL NI AL NI D 10 +0,05 −0,15 D 10 ±0,1 V 10 - 200 500 1000 -  7   7 1,5 1,5 D 12 +0,05 −0,15 D 12 −0,2 V 12 - 200 500 1000 -  9    9 1,5 1,5 D 14 +0,05 −0,15 D 14 −0,2 - - 200 500 1000 - 11   - 1,5 - D 15 +0,05 −0,15 D 15 −0,2 - - 200 500 1000 - 12   - 1,5 - D 16 +0,05 −0,15 D 16 −0,2 V 16 - 200 500 1000 - 13   13 1,5 1,5 D 18 +0,05 −0,15 D 18 −0,2 - - 200 500 1000 - 15   - 1,5 - D 20 +0,1 −0,2 D 20 −0,2 V 20 V 20 200 500 1000 2000 16   16 2   2 D 25 +0,1 −0,2 D 25 ±0,15 V 25 V 25 200 500 1000 2000 21   21 2   2 D 30 ±0,15 D 30 ±0,15 V 30 V 30 200 500 1000 2000 26   26 2   2 D 35 ±0,15 D 35 ±0,15 - - 200  500 1000 - 31   - 2   - D 40 +0,15 −0,25 D 40 +0,15 −0,2 V 40 V 40 200 * 500 1000 2000 34   34 3   3 D 50 ±0,2 D 50 ±0,2 V 50 V 50 500 1000 2000 - 44   44 3   3 D 60 ±0,25 D 60 ±0,25 - - 500 1000 2000 - 52   - 4   - * only available for diameter D40 1 Material 2 d 1 (s 1 ) 3 Length l 4 Finish How to order (Aluminum) 1 2 3 4 GN990-AL-D20-500-EL 1 Material 2 s 1 (d 1 ) 3 Length l 4 Finish How to order (Stainless Steel) 1 2 3 4 GN990-NI-V30-200-BL • Further lengths On request