Tianhe Conveying Machine Co.,Ltd · Wuxi Jiangsu China
Roller

Aluminum Gravity Roller

The Aluminum Gravity Roller with Plastic End Cap is a lightweight roller designed for low-friction, gravity-fed material transport. It features a precision bearing housed in a nylon and PP bearing house, with a range of tube diameters and shaft sizes to match common conveyor tube dimensions. The roller is available in aluminum, steel, or SUS304 tube material with multiple surface treatments including galvanized, chrome plated, and PU or rubber coating. End cap length and shaft end tapping options are tailored to the roller length and width of the application.

Aluminum gravity roller with plastic end cap, precision bearing, and adjustable end cap length
Aluminum gravity roller with plastic end cap, precision bearing, and adjustable end cap length

Product Overview

The Aluminum Gravity Roller with Plastic End Cap is a lightweight roller designed for low-friction, gravity-fed material transport. It features a precision bearing housed in a nylon and PP bearing house, with a range of tube diameters and shaft sizes to match common conveyor tube dimensions. The roller is available in aluminum, steel, or SUS304 tube material with multiple surface treatments including galvanized, chrome plated, and PU or rubber coating. End cap length and shaft end tapping options are tailored to the roller length and width of the application.

Part of the Roller range, used in Warehouse and Distribution Centres.

Key Benefits

  • Lightweight aluminum tube reduces deck weight and improves energy efficiency
  • Precision bearing ensures smooth rotation under load with low rolling resistance
  • Plastic end cap protects the bearing housing and prevents debris ingress
  • Multiple tube materials and surface treatments suit dry, wet, or corrosive environments
  • Adjustable end cap and shaft end tapping lengths match various conveyor frame widths

Application Scenarios

  • Gravity conveyors in packaging lines where cartons move without powered drive
  • Assembly lines requiring low-friction transfer between workstations
  • Warehouse picking stations where light to medium loads are moved by hand
  • Conveyor sections where belt or roller alignment must be maintained over long runs
  • Material handling systems using modular frames with standard tube sizes

Who It Is For

  • Conveyor system integrators building gravity roller sections for production lines
  • Material handling equipment builders using standard tube dimensions
  • Industrial distributors stocking rollers by tube diameter and shaft size
  • Assembly line builders needing consistent roller performance across multiple stations

Problems It Solves

  • Rollers that bind or rotate unevenly due to poor bearing fit or housing deformation
  • Inconsistent end cap lengths that cause misalignment or frame interference
  • Lack of matching shaft sizes between rollers and existing conveyor tube diameters
  • Corrosion or wear in wet environments due to unsuitable tube or surface material
  • Inconsistent roller performance when sourced from multiple suppliers with no standardization

Technical Features

  • Precision bearing with nylon and PP bearing house for low friction and long life
  • Adjustable end cap length based on roller width (E = W + value)
  • Shaft end tapping options available on both ends or only one end
  • Tube material options include aluminum, steel, and SUS304 for different load and environment needs
  • Multiple surface treatments including galvanized, chrome plated, and PU or rubber coating

Materials

  • Aluminum tube for lightweight and corrosion-resistant applications
  • Steel tube for higher load capacity and general industrial use
  • SUS304 tube for use in wet or corrosive environments
  • Nylon and PP bearing house for low friction and wear resistance
  • PU or rubber coating for noise reduction and surface protection

Quality Control

  • Bearing rotation checked by hand for free movement and smooth operation
  • Tube diameter and thickness verified against the specified dimensions
  • End cap length measured to match the W + value formula
  • Shaft end tapping depth and thread accuracy confirmed
  • Surface treatment inspected for even coating and no defects

Customization Options

  • Choose tube material: aluminum, steel, or SUS304
  • Select surface treatment: galvanized, chrome plated, or PU/rubber coating
  • Specify shaft diameter from ø6 to ø20
  • Choose end cap length based on roller width (E = W + value)
  • Select shaft end tapping: one end or both ends

Use Guide

  • Match the shaft diameter to the existing tube or frame hole size
  • Verify that the end cap length (E = W + value) fits within the frame width
  • Use aluminum tube for lightweight applications and SUS304 for wet environments
  • Select PU or rubber coating where noise or surface protection is required
  • Ensure shaft end tapping matches the mounting bolt size and frame design

Specifications

Model No02WR
Bearing TypePrecision Bearing
Bearing HouseNylong & PP
Tube MaterialAluminum, Steel, SUS304
Surface TreatmentGalvanized, Chrome Plating, PU & Rubber Coating
Tube Diameterø25*1.0 to ø89*3.0
Tube Thickness1.0 mm to 3.0 mm
Shaft Diameterø6 to ø20
End Cap LengthE = W + 6 to W + 11
Shaft End Tapping LengthL = W + 11 to W + 33

Manufacturing Process

Step 1

Tube cutting to specified length and diameter

Step 2

Precision bearing installation into the nylon and PP housing

Step 3

End cap assembly with adjustable length based on width

Step 4

Shaft end tapping drilled according to model and length requirements

Step 5

Final inspection and packing

Compared With Other Options

Steel gravity rollers with no surface treatmentAluminum rollers reduce weight and improve energy efficiency, while surface treatments extend life in harsh environments
Rollers with stamped steel bearing housesNylon and PP bearing houses provide better wear resistance and lower rolling resistance than stamped metal
Rollers with fixed end cap lengthsAdjustable end cap length ensures compatibility with varying frame widths and avoids interference

Aluminum Gravity Roller Questions

What is the bearing type used in the aluminum gravity roller?

It uses a precision bearing housed in a nylon and PP bearing house.

Can I get the roller with a different shaft diameter?

Yes, shaft diameters range from ø6 to ø20 depending on the model and application.

What surface treatments are available?

Available treatments include galvanized, chrome plated, and PU or rubber coating.

How is the end cap length determined?

End cap length is calculated as E = W + value, where W is the roller width.

Is the roller available in SUS304 material?

Yes, SUS304 is available for use in wet or corrosive environments.

Can I get shaft end tapping on both ends?

Yes, shaft end tapping is available on one or both ends depending on the model.

Get a Price for Aluminum Gravity Roller

Send the quantity and any material or surface option you need, and a quotation comes back against this model number.