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Conveyor Roller

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Product Description

Features

Conveyor rollers: Available in diameters ranging from 50 mm to 219 mm (2 1/2" to 8 5/8"), with lengths from 190 mm to 3400 mm, to suit a wide range of conveyor systems.

Idler Tube: Made from Q235 (equivalent to SS400/JIS G3101/EN10025/ASTM A36 ) steel for durability and strength.

Idler Shaft: Constructed from 45# (equivalent to DIN:C45/EN:C45/JIS:S45C/ASTM A1045 )steel for reliable performance.

Bearing: Equipped with single and double row deep groove ball bearings, with 2RZ and 2Z options available, and C3 clearance for enhanced efficiency and reduced friction.

Seals system: Features a grease retaining inner seal with multi-stage labyrinth design, along with a retention cap, to prevent dust and debris from entering the bearing.

Lubrication: Uses lithium soap type grease with rust inhibitors, to ensure smooth and reliable operation.

Welding technology: Utilizes mixed gas shielded arc welding for strong and consistent welds.

Painting technology: Offers a variety of painting options, including ordinary painting, hot galvanized painting, electric static spraying painting, and baked painting, to suit the specific needs of each application.

Drawing and Parameters:

This Conveyor Roller (idler/roller) is designed for belt conveyor systems where stable rotation, low resistance, and long service life are required. It supports a wide selection range—diameter 50–219 mm and length 190–3400 mm—so it can match different conveyor frames and belt widths.

Key Specifications (from the product page)

Roller diameter: 50–219 mm
Roller length: 190–3400 mm
The page also provides engineering drawings and a parameter table (bandwidth/roller sizes/angles/weight references) for selection.

Materials & Construction

Idler tube: Q235 steel (equivalents listed on the page such as SS400 / EN10025 / ASTM A36).
Idler shaft: 45# steel (equivalents such as C45 / S45C / AISI 1045).
Bearings: single or double-row deep-groove ball bearings, with 2RZ / 2Z options and C3 clearance for smoother running.
Welding: mixed-gas shielded arc welding is stated for consistent weld quality.

Sealing & Lubrication (Built for Dusty Conditions)

The roller adopts a sealing system described as grease inner sealing + multi-stage labyrinth sealing + retention cap, helping reduce dust/water contamination entering the bearing area—critical for heavy-duty conveying environments.
Lubrication uses lithium soap-based grease with rust inhibitors, supporting stable long-term operation.

Surface Treatment Options

To meet corrosion resistance and lifecycle targets, the page lists multiple finishing choices, including:

standard painting
hot-dip galvanizing
electrostatic coating (powder coating)
baking finish

Advantages

Lower downtime risk: multi-stage labyrinth sealing helps protect bearings against dust ingress and premature failure.
Smoother rotation / lower resistance: deep-groove bearing options with C3 clearance support efficient running.
Strong load support: Q235 tube + 45# shaft combination provides practical strength for industrial conveying.
Easy matching to conveyors: broad diameter/length range plus the provided drawings/table improves selection accuracy and reduces customization cost.