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

PU Coated Gravity Roller

The PU Coated Gravity Roller is a precision bearing roller with a polyurethane coated shaft, designed for smooth, quiet operation under load. It is mounted on a carbon steel bearing house and rated for gravity-fed material transfer in industrial conveyor systems. The unit is suitable for use with standard tube diameters and shaft sizes, providing consistent performance across multiple units in a line.

PU coated gravity roller model 01GR with polyurethane shaft and carbon steel bearing house
PU coated gravity roller model 01GR with polyurethane shaft and carbon steel bearing house

Product Overview

The PU Coated Gravity Roller is a precision bearing roller with a polyurethane coated shaft, designed for smooth, quiet operation under load. It is mounted on a carbon steel bearing house and rated for gravity-fed material transfer in industrial conveyor systems. The unit is suitable for use with standard tube diameters and shaft sizes, providing consistent performance across multiple units in a line.

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

Key Benefits

  • Polyurethane coating reduces noise and protects product surfaces during transfer
  • Precision bearing ensures smooth rotation under load and consistent speed
  • Carbon steel bearing house provides durability in industrial environments
  • Matches standard tube diameters and shaft sizes for direct replacement
  • Suitable for use in gravity roller conveyors where powered drive is not required

Application Scenarios

  • Gravity roller conveyors in warehouse loading docks for moving cartons and crates
  • Assembly line transfer points where product must move without powered drive
  • End-of-line staging areas where items are manually pushed between stations
  • Material handling systems with limited space for motorized drive components
  • Conveyor sections where noise reduction is required near operator workstations

Who It Is For

  • Conveyor system integrators building gravity roller sections for material flow
  • Industrial equipment builders requiring consistent roller performance
  • Warehouse automation contractors installing low-maintenance transfer lines
  • Production line designers integrating gravity rollers into assembly sequences
  • Industrial distributors stocking rollers by shaft size and load capacity

Problems It Solves

  • Noise from metal-on-metal contact in gravity roller conveyors
  • Product damage from hard roller surfaces during transfer
  • Inconsistent roller performance due to poor bearing fit or housing deformation
  • Difficulty in replacing rollers when shaft size or tube diameter does not match
  • Lack of standardization across multiple roller suppliers in a single system

Technical Features

  • Polyurethane coated shaft for quiet operation and surface protection
  • Precision bearing for smooth rotation and long service life
  • Carbon steel bearing house for strength and resistance to deformation
  • Designed to fit standard tube diameters and shaft sizes used in gravity conveyors
  • No drive mechanism required, relying on gravity or manual push for movement

Materials

  • Polyurethane coating on the shaft to reduce noise and protect product surfaces
  • Carbon steel bearing house for structural integrity and resistance to impact
  • Precision bearing with steel rollers and cage for consistent rotation

Quality Control

  • Rotation checked by hand for free movement and absence of binding
  • Coating thickness verified to ensure consistent surface performance
  • Bearing house dimensions checked against standard tube and shaft sizes
  • Material grade confirmed against the carbon steel specification

Customization Options

  • Available in standard shaft sizes and tube fits for direct replacement
  • Polyurethane coating can be specified for different hardness levels if required
  • Bearing house material can be changed to stainless steel if needed for wet environments

Use Guide

  • Ensure the roller shaft fits the existing tube or shaft diameter in the conveyor frame
  • Check that the polyurethane coating is intact before installation to avoid premature wear
  • Use in gravity-fed sections where manual or product weight drives movement
  • Avoid overloading beyond the system's design load to maintain bearing life
  • Inspect regularly for coating wear or bearing noise indicating maintenance need

Specifications

Model No01GR
Bearing TypePrecision Bearing
Bearing HouseCarbon Steel
CoatingPolyurethane (PU)
Shaft MaterialSteel
MountingStandard tube or shaft fit
ApplicationGravity roller conveyor

Manufacturing Process

Step 1

Shaft machining and surface preparation for coating

Step 2

Polyurethane coating application and curing

Step 3

Precision bearing assembly into carbon steel housing

Step 4

Final inspection of rotation and fit

Step 5

Packaging for shipment

Compared With Other Options

Uncoated steel rollersThe PU coating reduces noise and protects product surfaces, while uncoated rollers can mark or damage light packaging
Rubber coated rollersPU coating offers better wear resistance and longer life than rubber under continuous industrial use
Motorized rollersThe gravity roller operates without power, reducing system complexity and maintenance needs

PU Coated Gravity Roller Questions

What is the coating material on the roller shaft?

The shaft is coated with polyurethane (PU) for quiet operation and to protect product surfaces.

Is the bearing house made of steel?

Yes, the bearing house is made of carbon steel for strength and durability.

Can this roller be used in wet environments?

The carbon steel housing is suitable for dry or light-duty wet areas, but stainless steel housing is available upon request.

What type of bearing is used?

A precision bearing is used to ensure smooth rotation and long service life.

Does the roller require a drive motor?

No, it is a gravity roller and operates without a motor, relying on product weight or manual push.

What shaft size does it fit?

It is designed to fit standard tube and shaft sizes used in gravity roller conveyors.

Get a Price for PU Coated Gravity Roller

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