John Crane styles K1730, K1760, 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.

K1730
KevlarTM filament fibers with PTFE dispersion and a high-temperature break in lubricant.

K1760
Spun aramid fibers thoroughly impregnated with PTFE dispersion preventing process penetration plus a break in lubricant.

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, waste water, slurries, paper stock, liquors, asphalt, fly ash, condensate.

Standard Sizes
Styles K1730, K1760, K1761, and K1771 are available in standard cross-section sizes from 1/8" to 1" in 1/16" increments. As Rite-Pak® 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.