Standard_Parts_Catalogue

Page 1443 | 3.4 Installing, Lifting, Damping with Leveling Feet, Lifting Gear and Rubber Elements 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 GN 344.2 / GN 344.7 ESD-Leveling Feet continued 1 d 1 2 d 2 3 l 1 4 Type How to order (Threaded stud steel) 1 2 3 4 GN344.2-80-M16-138-BG 1 d 1 2 d 2 3 l 1 4 Type How to order (Threaded stud stainless steel) 1 2 3 4 GN344.7-60-M16-138-B Leveling feet GN 344.2 / GN 344.7 feature a conductive ESD plastic mate- rial (PA) or rubber (NBR) which prevents static charges from building up. The imprint ESD-C on the surface of the leveling feet indicates the special antistatic properties according to ICE 61340-5-1. These leveling feet have a high load-bearing capacity which is achieved by the use of a very high grade plastic material. In addition, their stepped base also helps to spread the load over a wider area. The values given in the table regarding the static load capacity serve as a guide line only and if these are exceeded serious permanent deformation or breakage of the plastic foot could occur. The values were arrived at by a series of tests whereby a limited number of leveling feet were subjected for a limited time to a vertical static load to the feet. The listed load capacities are non-binding guide values; the manufac- turer accepts no liability for their performance. In general, they do not constitute a warranty of condition. The user must determine from case to case whether a product is suitable for the intended use. Leveling feet GN 344.2 / GN 344.7 are delivered assembled, but can also be disassembled. Information • Foot Plastic ESD Technopolymer (Polyamide PA) - - Glass fiber reinforced - - Black, matte finish - - Temperature resistant up to 100 °C Electrically conductive Surface resistivity: 10 3 Ω (ASTM D257 measuring method) Volume resistivity: 10 3 Ω (ASTM D257 measuring method) • Rubber pad (NBR) 70 Shore A, black Electrically conductive Surface resistivity: 10 3 Ω (ASTM D991 measuring method) Volume resistivity: 10 3 Ω (ASTM D991 measuring method) • GN 344.2 - - Threaded stud steel Property class 5.8 Zinc plated, blue passivated - - Hexagon nut ISO 4032 Steel zinc plated, blue passivated • GN 344.7 - - Threaded stud Stainless steel AISI 303 - - Hexagonal nut ISO 4032 Stainless steel AISI 304 • RoHS Specification