ASTM B271 C86300 Self-lubricating inlaid graphite bearings

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ASTM B271 C86300 inlaid graphite bearings are self-lubricating, completely maintenance-free, consisting of a centrifugally cast bronze alloy (ASTM B271 C86300) for bearings with a bore diameter greater than 180 mm, or of a continuously cast alloy (ASTM B505 C86300) for bearings with a bore diameter less than 180 mm, highly wear-resistant, with a solid lubricant consisting of graphite filled on the contact surfaces and patterned according to the so-called "macro-distribution principle" and the type of movement the bearing will be subjected to.

The bearings are provided with a 15 to 20µm running-in film, the function of which is to ensure that the solid lubricant is transferred to the mating material during the first movement.

They must have a high static and dynamic load capacity, a stable coefficient of friction, no "stick-slip" effect, be corrosion-resistant, insensitive to dirt, and suitable for use in water, oil or grease.

For bearings with a bore diameter greater than 200mm, the tolerances should be calculated by our application engineering team according to the parameters of each application.

Your specific application may require special mounting instructions.

Graphite inlaid self-lubricating flange sleeve

Mechanical properties of C86300 copper alloy:

Minimum yield strength N/mm²: 414

Minimum tensile strength N/mm²: 758

Hardness HB: 210

Elongation (%50 mm): 12

Graphite inlaid self-lubricating straight sleeve

ASTM B271 Tribological properties of C86300 inlaid graphite bearing:

Maximum static load capacity N/mm²: 400

Maximum dynamic load capacity N/mm²: 250

Maximum sliding speed Vm/s: 0.5