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Aluminum Dead Shaft Idler Rolls

  • Lower inertia when compared to a steel idler
  • Ideal for lower web tensions
  • More corrosion resistant than steel
  • Dynamically balanced for high speed operation
  • Readily modified with custom coatings and surface treatments
  • Low-friction bearings pre-installed
  • Ultra low-friction, oil-lubricated bearings optional

Dead Shaft Aluminum Idler Specifications

  • Material6061-T6 aluminum tubing machined for minimum stock removal
  • Low-friction Bearings*Installed in each end of the roller
  • Finish32Ra
  • Runout and StraightnessWithin the greater of 0.05 mm or 0.01 mm/meter of Face LengthWithin the greater of 0.002 inch or 0.0005 inch/ft of Face Length
  • BalancedDynamically balanced to standard specification or your specified line speed

A-200-075 Specifications

A-200-075 Dimensions
  • Nominal Roll Diameter50.8 mm2 inches
  • Wall Thickness6.35 mm0.25 inches
  • Dynamically Balanced at1,000 fpm
  • Idler Weight (lbs.)= 1.00 + (0.11 x Inches Face Length) w/o shaft
  • Generally available in face lengths up to50 inches
  • Low-friction Bearings*installed for a 0.75 inch diameter shaftinstalled for a 19.05 inch diameter shaft

A-250-100 Specifications

  • Nominal Roll Diameter63.5 mm2.5 inches
  • Wall Thickness6.35 mm0.25 inches
  • Dynamically Balanced at1,000 fpm
  • Idler Weight (lbs.)1.12 + (0.14 x Inches Face Length) w/o shaft
  • Generally available in Face Lengths up to60 inches
  • Low-friction Bearings*installed for a 1 inch diameter shaftinstalled for a 25.4 mm diameter shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-250-7519.05 mm0.75 inches

A-300-100 Specifications

A-300-100 Dimensions
  • Nominal Roll Diameter76.2 mm3 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at1,500 fpm
  • Idler Weight (lbs.)1.12 + (0.35 x Face Length) w/o shaft
  • Generally available in Face Lengths up to75 inches
  • Low-friction Bearings*installed for a 1 inch diameter shaftinstalled for a 25.4 mm diameter shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-300-7519.05 mm0.75 inches
  • A-300-12531.75 mm1.25 inches

A-350-125 Specifications

  • Nominal Roll Diameter88.9 mm3.5 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at1,500 fpm
  • Idler Weight (lbs.)3.40 + (0.42 x Inches Face Length) w/o shaft
  • Generally available in Face Lengths up to84 inches
  • Low-friction Bearings*installed for a 1.25 inch shaftinstalled for a 31.75 mm shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-350-7519.05 mm0.75 inches
  • A-350-12531.75 mm1.25 inches
  • A-350-15038.1 mm1.5 inches

A-400-150 Specifications

  • Nominal Roll Diameter101.6 mm4 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at1,500 fpm
  • Idler Weight (lbs.)4.00 + (0.49 x Inches Face Length) w/o shaft
  • Generally available in Face Lengths up to96 inches
  • Low-friction Bearings*installed for a 1.5 inch shaftinstalled for a 38.1 mm shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-400-7519.05 mm0.75 inches
  • A-400-10025.4 mm1 inch
  • A-400-12531.75 mm1.25 inches

A-450-150 Specifications

  • Nominal Roll Diameter114.3 mm4.5 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at1,500 fpm
  • Idler Weight (lbs.)4.45 + (0.56 x Inch Face Length) w/o shaft
  • Generally available in Face Lengths up to100 inches
  • Low-friction Bearings*installed for a 1.5 inch shaftinstalled for a 38.1 mm shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-450-7519.05 mm0.75 inches
  • A-450-10025.4 mm1 inch
  • A-450-12531.75 mm1.25 inches
  • A-450-20050.8 mm2 inches

A-500-150 Specifications

  • Nominal Roll Diameter127 mm5 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at2,000 fpm
  • Idler Weight (lbs.)5.17 + (0.63 x Inch Face Length) w/o shaft
  • Generally available in Face Lengths up to120 inches
  • Low-friction Bearings*installed for a 1.5 inch shaftinstalled for a 38.1 mm shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-500-7519.05 mm0.75 inches
  • A-500-10025.4 mm1 inch
  • A-500-12531.75 mm1.25 inches
  • A-500-20050.8 mm2 inches

A-600-150 Specifications

  • Nominal Roll Diameter152.4 mm6 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at2,000 fpm
  • Idler Weight (lbs.)6.90 + (0.77 x Inch Face Length) w/o shaft
  • Generally available in Face Lengths up to130 inches
  • Low-friction Bearings*installed for a 1.5 inch shaftinstalled for a 38.1 mm shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-600-7519.05 mm0.75 inches
  • A-600-10025.4 mm1 inch
  • A-600-12531.75 mm1.25 inches
  • A-600-20050.8 mm2 inches

A-800-200 Specifications

  • Nominal Roll Diameter203.2 mm8 inches
  • Wall Thickness12.7 mm0.5 inches
  • Dynamically Balanced at2,000 fpm
  • Idler Weight (lbs.)13.38 + (1.05 x Inch Face Length) w/o shaft
  • Generally available in Face Lengths up to150 inches
  • Low-friction Bearings*installed for a 2 inch diameter shaftinstalled for a 50.8 mm diameter shaft
  • Also Available with Bearings for the Following Shaft Diameters
  • A-800-7519.05 mm0.75 inches
  • A-800-10025.4 mm1 inch
  • A-800-12531.75 mm1.25 inches
  • A-800-15038.1 mm1.5 inches

*Other shaft configurations and wall thicknesses optional.

Webex Dead Shaft Aluminum Idlers are some of the most versatile and hardworking idlers on the market today. Weighing nearly half as much as comparable steel rollers, aluminum idlers still provide exceptional performance across a broad range of applications. This reduced weight makes them ideal for applications requiring lower web tensions and minimal web wrap.

Standard Aluminum Idlers are dynamically balanced at speeds up to 2,000 FPM. Each one is precision machined to exacting tolerances. Only the smallest aluminum idlers (2 inch and 2-1/2 inch diameter models) have a 1/4 inch thick roll wall. All other standard aluminum idlers are made from 1/2 inch wall material.

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