Componex WINertia™ ST Smooth Tubing Idler Rolls
The Componex WINertia™ ST Smooth Tubing Idler Roll is built for high-speed, low-tension web handling. It delivers up to 30% less rotational inertia than standard aluminum idlers, helping improve tension control and reduce energy demand. Each roll includes WINlock™ bearing protection and self-aligning bearings to simplify installation and extend equipment life. Ships in as little as 5 days.
Key Benefits:
- Up to 30% less rotational inertia than standard aluminum idlers
- WINlock™ bearing protection prevents shaft wear
- Dynamic center-WIN™ balancing for smooth high-speed operation
- Self-aligning WINertia™ bearings for easier installation
- Corrosion-resistant aluminum tubing
- Available in multiple sizes and shaft options and bearing options
Lightweight Idler Rolls for High-Speed, Low-Tension Web Handling
The Componex WINertia™ ST Smooth Tubing Idler Roll is a high-performance aluminum dead shaft roll engineered for converters, OEMs, and web handlers operating at high speeds with minimal tension. Compared to traditional aluminum idlers, the ST roll reduces rotational inertia by up to 30%, enabling smoother acceleration, improved tension control, and enhanced energy efficiency.
WINlock™ Bearing Protection & Dynamic Center-WIN™ Balancing
Each WINertia™ ST idler includes exclusive WINlock™ bearing protection, which prevents shaft wear and slippage under dynamic loads. The roll is dynamically balanced with Center-WIN™ technology, ensuring quiet, vibration-free operation across a broad speed range. Combined with self-aligning WINertia™ bearings, this roll simplifies installation and reduces setup time.
Built for OEM Integration & Web System Upgrades
Lightweight yet durable, the ST Smooth Tubing Roll is ideal for upgrades to existing production lines or integration into new machine builds. Its aluminum tubing resists corrosion, supports precision-machined coatings, and accommodates a variety of shaft options and bearing configurations.
Use the Componex WINertia Calculator to calculate your shaft size, length, and bearing needs.
2.0 x 1.5
| Finished Roll Diameter (Wide Web) | 1.960 / 1.880 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing Protrusion Available) |
| Bearing Sizes Available | Self-Adjusting: 0.75 |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | No Balance |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = .9995/ .9985) |
| End Cap | No end cap |
| Approximate Weight | .100 Pounds Per Inch (without shaft or bearings) |
2.5 x 2
| Finished Roll Diameter | 2.5" -2.4" |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing Protrusion Available) |
| Bearing Sizes Available | 1.0 in, 1.25 in, 25 mm1.0 in, 1.25 in, 25 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995/ 0.9985) |
| End Cap | No end cap |
| Approximate weight | 0.166 Pounds Per Inch (without shaft or bearings) |
3.1 x 1.5
| Finished Roll Diameter | 3.04 / 3.020 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 0.75 in Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995/ 0.9985) |
| End Cap | Standard |
| Approximate Weight | 0.149 Pounds Per Inch (without shaft or bearings) |
3 x 2
| Finished Roll Diameter | 3.175 / 3.075 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.0 in, 1.25 in, 25 mm1.0 in, 1.25 in, 25 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995/ 0.9985) |
| End Cap | Standard |
| Approximate Weight | 0.266 Pounds per Inch (without shaft and bearings) |
4 x 2
| Finished Roll Diameter | 4.070 / 3.950 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.0 in, 1.25 in, 25 mm1.0 in, 1.25 in, 25 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | Standard |
| Approximate Weight | .345 Pounds Per Inch (without shaft and bearings) |
4 x 3
| Finished Roll Diameter | 4.150 / 4.075 in |
|---|---|
| Total Indicator Run Out (TIR) | .0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2.0 in, or 40 mm1.5 in, 2.0 in, or 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | No end cap |
| Approximate Weight | 0.410 Pounds Per Inch (without shaft and bearings) |
4.5 x 3
| Finished Roll Diameter | 4.550 / 4.400 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2 in, 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995/ 0.9985) |
| End Cap | No end cap |
| Approximate Weight | 0.529 Pounds Per Inch (without shaft and bearings) |
5 x 2
| Finished Roll Diameter | 5.080/ 4.940 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.0 in, 1.25 in, 25 mm1.0 in, 1.25 in, 25 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | Standard |
| Approximate Weight | .533 Pounds Per Inch (without shaft or bearings) |
5 x 3
| Finished Roll Diameter | 5.050 in /4.900 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2 in, 40 mm1.5 in, 2 in, 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | No end cap |
| Approximate Weight | 0.585 Pounds Per Inch (without shaft or bearings) |
6 x 2
| Finished Roll Diameter | 6.100 / 5.950 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.0 in, 1.25 in, 25 mm1.0 in, 1.25 in, 25 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | Standard |
| Approximate Weight | 0.7155 Pounds Per Inch (without shaft or bearings) |
6 x 3
| Finished Roll Diameter | 6.050 / 5.990 in |
|---|---|
| Total Indicator Run Out (TIR) | .0005 Per Foot (.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2.0 in, 40 mm1.5 in, 2.0 in, 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | Standard |
| Approximate Weight | 0.717 Pounds Per Inch (Without shaft and bearings) |
8 x 3
| Finished Roll Diameter | 8.000 / 7.750 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (0.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2.0 in, 40 mm1.5 in, 2.0 in, 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995/ 0.9985) |
| End Cap | Standard |
| Approximate Weight | 1.265 Pounds Per Inch (Without shaft and bearings) |
10 x 3
| Finished Roll Diameter (Wide Web) | 9.970 / 9.770 in |
|---|---|
| Total Indicator Run Out (TIR) | 0.0005 Per Foot (.002 Min) Ra |
| Surface Finish | 16, 32, 64, or 125 ra16, 32, 64, or 125 ra |
| Bore Available | Ring Clip Bore (Bearing protrusion available) |
| Bearing Sizes Available | 1.5 in, 2.0 in, 40 mm1.5 in, 2.0 in, 40 mm |
| Bearing Type | Self Adjusting, ER, Free Spin |
| Balanced to Spec G6.3 | 2000 FPM (or as specified) |
| Shaft Diameter Tolerance | -0.0005 / -0.0015 (Ex: 1.0" = 0.9995 / 0.9985) |
| End Cap | Standard |
| Approximate Weight | 1.484 Pounds Per Inch (Without shaft and bearings) |
- Tag and Label
- Packaging
- Cardboard
- Food and Beverage
- Flexible Packaging
- Pharmaceutical
- Battery
- Specialty Converting
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