Rail | Ceramet

BEST FIT OF CERAMET BEARINGS IN RAILWAY EQUIPMENT

Bogie car bearings
Brake linkages
Adjustable track axles
Couplings
Panthographs
Doors, hatches and flaps
Points
Track brakes

MECHANICAL PROPERTIES & APPLICATION DATA

CER.SM material characteristics		CER.BM material characteristics
Tensile Strength [MPa]	55 – 90	Tensile Strength [MPa]	–
Compressive Strength [MPa]	250 – 640	Compressive Strength [MPa]	300 – 320
Hardness [HB 2.5/31,25/15], min.	40 – 80	Hardness [HB 2.5/31,25/15], min.	40
Density [g/cm3]	6 – 6.7	Density [g/cm3]	6.5
Type of solid lubricant	C (+MoS2)	Type of solid lubricant	C
Max. static load [MPa]	70 – 250	Max. static load [MPa]	260 – 320
Max. dynamic load [MPa]	30 – 130	Max. dynamic load [MPa]	80 – 150
Max. sliding speed, dry [m/s]	0.2 – 0.5	Max. sliding speed, dry [m/s]	0.3 – 0.5
Max. PV dry [N/mm2 x m/s]	0.5 – 1.5	Max. PV dry [N/mm2 x m/s]	0.5 – 1.0
Typical coefficient of friction, dry	0.11 – 0.5	Typical coefficient of friction, dry	0.1 – 0.2
Typical coefficient of friction, wet	0.11 – 0.18	Typical coefficient of friction, wet	0.1 – 0.15
Service temperature min/max [°C]	-200 / 650	Service temperature min/max [°C]	-150 / 280
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
Great emergency running properties
Performing particularly well in wet and dirty environments
No water absorption, maximum dimensional accuracy, and stability
Providing no threat to the environment by oil contamination

Ceramet 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. Sintered materials provide reliable and high-performance no-grease solutions.