K1730, K1761 and K1771 Packing | John Crane Packing


Abrasive Service Aramid and Meta-aramid Packings

John Crane styles K1730, K1761 and K1771 are constructed of high-tensile strength, abrasion-resistant fibers. Servicing a wide range of abrasive and slurry services, temperatures, pressures and shaft speeds, these styles offer excellent chemical-resistant characteristics. These products feature dimensional stability, resilience, conformability and extrusion resistance. John Crane recommends the use of hardened shaft or sleeves and flush to reduce shaft or sleeve damage.



  • California Residents: PROPOSITION 65 WARNING
  • K1730 — Kevlar® filament fibers with PTFE dispersion and a high-temperature break in lubricant.1
  • K1761 — Spun aramid fibers treated with a proprietary blend of petroleum based lubricants plus an external coating of graphite.
  • K1771 — Spun white meta-aramid fibers thoroughly impregnated with PTFE dispersion plus a compatible silicone-free lubricant.
  • Applications — Static or dynamic/abrasives, water, medium acids and caustics, gases, oils, steam, solvents, wastewater, slurries, paper stock, liquors, asphalt, fly ash, condensate.
  • Standard sizes — Styles K1730, K1761, and K1771 are available in standard cross-section sizes from 1/8" to 1" in 1/16" increments. As John Crane spools, these standard sizes are available for immediate shipment. Metric and larger sizes are available upon request. Packing can be die-formed to exact dimensions for ease of installation and enhanced performance.
1Kevlar® is a registered trademark of DuPontTM.

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