Metal-Polymer Materials Lubricated DX® - GGB - #1

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DX® Bearing Material DX® is a trademark of GGB. ©2009 GGB. All rights reserved. www.ggbearings.com 12-09 DX® Bearing Material Characteristics Applications • Marginally lubricated bearing material for grease or oil lubricated applications • Standard parts contain grease indents in the sliding layer; plain sliding layer available on request • Order-related also available with plain sliding layer • Optimum performance under relatively high loads and low speeds • Suitable for linear, oscillating and rotating movements • Wide range of parts available from stock Automotive Steering gear, power steering, pedal bushes, seat slides, king-pin bushes, tailgate pivots, brake caliper bushes, etc. Industrial Mechanical handling and lifting equipment, machine slides, hydraulic cylinders, hydraulic motors, ski-lifts, pneumatic equipment, medical equipment, textile machinery, agricultural equipment, scientific equipment, etc. Composition & Structure Operating Conditions Availability Metal-polymer composite material Steel + porous bronze sinter + POM with lubrication indents dry poor Ex Stock • Cylindrical standard bushes, roll-formed oiled good bushes, thrust washers and strip greased very good To order • 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 – 0.06-0.12 General Maximum temperature Tmax °C +130 Minimum temperature Tmin °C -40 Maximum load p static MPa 140 Maximum load p dynamic MPa 70 Shaft surface finish Ra ìm 0,4 Shaft hardness - normal HB >200 Shaft hardness - for longer service life HB >350 Sliding layer Acetal-Copolymer, with or without lubrication indents, machineable on request Porous bronze sinter Steel backing