Polished Groove Sheave - Standard (Original) ▪ 7 in. x 3 in. cast aluminum alloy sheave, heat treaded for strength and extended life, finished with precision machining ▪ Suitable for multiple conductor stringing and cable placement applications ▪ Sealed, anti-friction ball bearings, lubricated for life under normal conditions ▪ Constant 98% efficiency during stringing, reducing amount of force and strain on the conductor during pulling and tensioning operations Urethane Lined Sheave ▪ Same profile as polished groove but with cast-in-place urethane polymer lining ▪ In one material, combines the resiliency of rubber and the hardness of structural plastics ▪ Due to its elasticity, the material will flow under the load exerted by wire rope pulling line or conductor, making it an ideal application for conductor, static wire, or even fiber optic cables ▪ Improved capabilities regarding high load, resistance to impact, abrasion, compression set, and chemical resistance including ozone, oil, and many others ▪ Premium-grade urethane elastomer with 90-92 “A” scale durometer hardness, same material as found on Sherman + Reilly Bullwheel Tensioners ▪ Interchangeable with all XS-100 frames Ductile Iron Sheave ▪ Same profile as all the other 7 in. x 3 in. sizes ▪ Ideal for stringing steel static, new, or reconductoring ▪ The block weight will increase approximately 7 lbs ▪ Not recommended for aluminum conductor ▪ Interchangeable with all XS-100 frames Nylon Sheave ▪ Entire sheave is manufactured from Nylon in the same 7 in. x 3 in. profile as the other options ▪ Excellent combination of toughness, dimensional stability, impact/wear resistance, chemical resistance, and good dielectric properties resulting in a great choice for almost all stringing applications and cable placement ▪ Can be used for almost all stringing applications, and cable placement
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POLISHED GROOVE SHEAVE - STANDARD (ORIGINAL) URETHANE LINED SHEAVE DUCTILE IRON SHEAVE NYLON SHEAVE