Injection Moulding

BEST FIT OF GLEBUS BEARINGS IN INJECTION MOULDING EQUIPMENT

  • Sliding plates for turntables
  • Tie bar guide bushings
  • Sliding pads
  • Toggle and crosshead guide bushes
  • Adjustment and Expansion bushings

MECHANICAL PROPERTIES & APPLICATION DATA

G-METAL® GBM 421
material characteristics
Compressive Strength [MPa]  300 Max. sliding speed, dry [m/s] 0.5
Hardness [HB 2.5/31,25/15], min. 40 Max. PV dry [N/mm2 x m/s] 1.0
Density [g/cm3] 6.2 Typical coefficient of friction, dry 0.1 – 0.2
Type of solid lubricant C Typical coefficient of friction, wet 0.1 – 0.15
Max. static load [MPa] 260 Service temperature min/max [°C] -150 / 280
Max. dynamic load [MPa] 100 Min. hardness counter material [HB] 250
Recommended surface roughness, counter material [μm] 0.2 – 0.8
Important remark: The above-mentioned material properties, in particular friction coefficients, are not assured properties. They are to be used only as guidelines for the selection of materials.

ADVANTAGES

  • Maintenance-free service
  • Inexpensive, easy and fast to replace
  • Suitable for intermittent movements
  • Allowing for enormous variability in shapes and sizes
  • High load endurance that offers high wear resistance
  • Clean working environment
  • Removing fire hazard by eliminating of grease
  • High number of cycles due to special selflubricating sliding surface resulting in low wear rate
  • Tight tolerance and low wear to guarantee precise closing of the machine
  • Optional lubricating pockets for grease and oil lubrication are available

G-Metal self-lubricating plain bearings and bushings with a sintered sliding layer are especially suitable for continuous operations in a demanding environment. Sintering technology allows for the construction and manufacturing of a wide range of complex shapes with consistent self-lubricating properties throughout the whole lifecycle of critical moving parts. G-Metal based materials provide reliable and high-performance no-grease solutions.