LD™ - GGB - #1

Text version of the page

LD™ Bearing Material LD™ is a trademark of Wieland-Werke AG, Germany. ©2010 GGB. All rights reserved. www.ggbearings.com 03-10 LD™ Bearing Material Characteristics Applications • Improved performance compared with MBZ-B09: larger grease reservoirs increase maintenance interval; dirt and debris swept into perforations, thereby reducing wear • Optimum performance under relatively high loads and low speeds • Wear resistant bearing made of solid bronze strip with perforation for lubricated applications Industrial Mechanical handling and lifting equipment, hydraulic cylinders, pneumatic equipment, medical equipment, textile machinery, agricultural equipment, etc. Composition & Structure Operating Conditions Availability Monometallic material CuSn8 with grease reservoirs for long term lubrication dry poor Ex Stock • N/A oiled fair greased good To order • Cylindrical bushes and non-standard parts water poor process fluid poor Microsection Bearing Properties Unit Value Dry Maximum sliding speed v m/s - Maximum pv factor MPa x m/s - Coefficient of friction f – - Grease lubrication Maximum sliding speed v m/s 2.5 Maximum pv factor MPa x m/s 2.8 Coefficient of friction f – 0.06-0.15 General Maximum temperature Tmax °C +150 Minimum temperature Tmin °C -40 Maximum load p static MPa 120 Maximum load p dynamic MPa 40 Shaft surface finish Ra ìm 0.8 Shaft hardness - normal HB >200 Shaft hardness - for longer service life HB >350 CuSn8: 8% Sn, 0.05% P, Rest Cu