Guiding Roller Assembly

Product Specifications

Technical details and manufacturing context for Guiding Roller Assembly

Definition

The Guiding Roller Assembly is a critical component within a Web Guiding System, responsible for maintaining precise lateral alignment of flexible materials (such as paper, film, foil, or textiles) as they move through production machinery. It consists of multiple rollers arranged to detect and correct positional deviations, ensuring the web travels along a predetermined path to prevent wrinkles, misalignment, and material waste. The assembly typically includes one or more sensing rollers that detect the web's edge position. When a deviation is detected, a control signal is sent to an actuator (pneumatic, hydraulic, or electric) that adjusts the angular position of one or more guiding rollers in the assembly. This angular adjustment creates a lateral force on the web, steering it back to the correct path. The system operates in a closed-loop feedback manner for continuous correction. The assembly is available in various configurations to suit different web widths and speeds. Roller diameters range from 50 to 300 mm, and face widths from 200 to 2000 mm, accommodating webs up to 2000 mm wide. Maximum web speed is 300 to 800 m/min, with radial runout tolerances of 0.02 to 0.05 mm per ISO 1101. Surface roughness is Ra 0.4 to 1.6 μm per ISO 4287. Operating temperature range is -10 to 80 °C, and maximum load capacity is 500 to 5000 N. Bearings are deep groove ball bearings of types 6204 to 6210 per DIN 625. Roller material is typically aluminum alloy 6061-T6 per ASTM B221, with optional hard anodized surface treatment of 25 to 50 μm per MIL-A-8625. Weight ranges from 10 to 150 kg. These values are reference ranges; verify model-specific specifications with the manufacturer.

Working Principle

The assembly uses sensing rollers to detect the web edge position. When a deviation occurs, a control signal triggers an actuator (pneumatic, hydraulic, or electric) that adjusts the angular position of guiding rollers. This creates a lateral force on the web, steering it back to the correct path. The closed-loop feedback system continuously corrects any misalignment, ensuring precise tracking and preventing wrinkles or waste.

Common Materials

Carbon Steel, Stainless Steel, Aluminum Alloy, Polyurethane, Ceramic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Roller Diameter	50–300 mm	Determines wrap angle and web support.
Roller Face Width	200–2000 mm	Must exceed web width to prevent edge damage.
Maximum Web Speed	300–800 m/min	Higher speeds require dynamic balancing.
Radial Runout	0.02–0.05 mm	Tighter tolerance improves web tracking.ISO 1101
Surface Roughness	Ra 0.4–1.6 μm	Smoother surface reduces web marking.ISO 4287
Operating Temperature	-10–80 °C	Beyond range may affect bearing lubrication.
Maximum Load Capacity	500–5000 N	Based on bearing rating and shaft strength.
Bearing Type	6204–6210	Deep groove ball bearings for radial loads.DIN 625
Roller Material	6061-T6	Aluminum alloy for lightweight and corrosion resistance.ASTM B221
Surface Treatment	Hard anodized 25–50 μm	Increases hardness and wear resistance.MIL-A-8625
Weight	10–150 kg	Affects handling and installation.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Guide Roller
Primary contact surface that steers the web material; often coated or covered for specific friction/traction properties.

Material: Steel core with polyurethane or ceramic coating
Pivot Bearing Housing
Contains bearings that allow the roller frame to rotate for angular adjustment.

Material: Cast iron or steel
Mounting Bracket Part
Structural frame that connects the assembly to the machine and transfers actuator forces.

Material: Steel
Shaft Part
Axle on which the roller rotates; transmits rotational force if driven.

Material: Hardened steel
Sensing Roller
Rides on the web and picks up the edge position that drives the correction.
Position Actuator
Swings the roller frame to the corrective angle when the web drifts.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Web Guiding System

View system integration details

Manufacturers of Guiding Roller Assembly

Manufacturer profiles associated with Guiding Roller Assembly.

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Frequently Asked Questions

What is the typical roller diameter range?

The roller diameter ranges from 50 to 300 mm, depending on the application and required wrap angle.

What materials can be used for the rollers?

Rollers can be made of carbon steel, stainless steel, aluminum alloy, polyurethane, or ceramic. The specific material depends on the application requirements.

What is the maximum web speed supported?

The maximum web speed is 300 to 800 m/min. Higher speeds may require dynamic balancing of the rollers.

How do I verify the radial runout tolerance?

Radial runout is specified as 0.02 to 0.05 mm per ISO 1101. Verify the actual tolerance with the manufacturer for your specific model.

Data Basis

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Preliminary Technical Classification

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pressure:	Max 5 bar contact pressure
other spec:	Web speed up to 1000 m/min, material thickness 0.01-10 mm
temperature:	-10°C to +80°C

Product Specifications

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