Braid made of flexible expanded natural graphite foil.
• Very good emergency running capability, no wear on the shaft, excellent thermal conductivity
• Highest quality pure graphite gives a coefficient of expansion similar to steel
• The rings have to be densified 15-20% during the assembly
• Can be universally applied
• Packing needs to be pre-compressed
• Die formed rings are recommended
• Recommended shaft hardness HRC*45