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

Metal Roller Bearings MTR From Tianhe

The Metal Roller Bearings MTR are precision bearings designed for gravity rollers with a tube diameter of Φ25 mm, wall thickness of 0.8 mm or 1.0 mm, and a shaft diameter of Φ8 mm. They are used in conveyor systems where consistent, low-friction rotation is required under medium to heavy loads. The bearings are housed in metal casings and are integrated into roller assemblies for reliable operation in industrial environments.

Metal roller bearing MTR with metal housing and precision bearing assembly, mounted on a roller shaft
Metal roller bearing MTR with metal housing and precision bearing assembly, mounted on a roller shaft

Product Overview

The Metal Roller Bearings MTR are precision bearings designed for gravity rollers with a tube diameter of Φ25 mm, wall thickness of 0.8 mm or 1.0 mm, and a shaft diameter of Φ8 mm. They are used in conveyor systems where consistent, low-friction rotation is required under medium to heavy loads. The bearings are housed in metal casings and are integrated into roller assemblies for reliable operation in industrial environments.

Part of the Metal Roller Bearings MTR range, used in Conveyor OEMs and System Integrators.

Key Benefits

  • Designed for Φ25 mm tube with 0.8 mm or 1.0 mm wall thickness and Φ8 mm shaft diameter
  • Metal housing provides durability in industrial and high-load applications
  • Precision bearings ensure smooth, free-running rotation with minimal resistance
  • Suitable for gravity rollers in medium to heavy weight conveying systems
  • Integrated into roller assemblies for consistent performance across multiple units

Application Scenarios

  • Gravity roller conveyors in medium to heavy weight manufacturing lines
  • Assembly lines where consistent roller rotation is needed for part transfer
  • Warehouse loading and unloading stations with frequent product movement
  • Mould and engine manufacturing facilities using gravity rollers for component handling
  • Electrical parts and light weight conveying systems requiring reliable roller operation

Who It Is For

  • Conveyor system integrators building gravity roller lines
  • Material handling equipment builders using roller assemblies in custom designs
  • Industrial distributors sourcing roller bearings in volume for assembly
  • Production line builders needing consistent roller performance across multiple units
  • Manufacturers of gravity roller conveyors and roller tracks

Problems It Solves

  • Inconsistent roller rotation due to poorly fitted or low-quality bearings
  • Premature wear in roller assemblies caused by non-precision bearings
  • Difficulty in sourcing bearings that match specific tube and shaft dimensions
  • Need for a single supplier for roller components with consistent fit and performance
  • Frequent maintenance or replacement due to bearing failure in high-load applications

Technical Features

  • Precision bearings integrated into metal housing for smooth operation
  • Designed for tube diameter Φ25 mm with wall thickness 0.8 mm or 1.0 mm
  • Shaft diameter of Φ8 mm for direct fit on standard roller shafts
  • Metal casing provides strength and resistance to deformation under load
  • Free-running design reduces friction and effort during product transfer

Materials

  • Metal housing for strength and durability in industrial environments
  • Precision bearings with metal components for long service life
  • No plastic components in the bearing housing, suitable for higher temperature or load conditions

Quality Control

  • Bearing rotation checked for free movement and smooth operation
  • Shaft fit verified against Φ8 mm specification
  • Tube diameter and wall thickness compatibility confirmed
  • Housing integrity checked for deformation or damage
  • Final inspection before packing and shipment

Customization Options

  • Special bore sizes available upon request for large volume orders
  • Alternative wall thickness or shaft size may be considered with sufficient volume
  • Custom packaging or labeling available for bulk orders

Use Guide

  • Ensure the roller tube is Φ25 mm with 0.8 mm or 1.0 mm wall thickness
  • Verify the shaft diameter is Φ8 mm before installation
  • Install the bearing so the shaft fits fully into the bore without binding
  • Check for free rotation after installation to confirm proper fit
  • Use in gravity roller applications where consistent, low-friction movement is required

Specifications

Model NoMTR-25X0.8-8
Model NoMTR-25X1.0-8
Tube DiameterΦ25 mm
Wall Thickness0.8 mm or 1.0 mm
Shaft DiameterΦ8 mm
Housing MaterialMetal
ApplicationGravity roller

Manufacturing Process

Step 1

Metal casing fabrication for bearing housing

Step 2

Precision bearing insertion and alignment

Step 3

Shaft fit verification for Φ8 mm compatibility

Step 4

Assembly into roller unit or delivery as standalone bearing

Step 5

Final inspection for free rotation and fit

Compared With Other Options

Plastic roller bearingsMetal roller bearings offer higher load capacity and durability in heavy-duty or high-temperature environments
Standard pressed-in bearingsMTR bearings are designed for precise fit and consistent performance, unlike generic bearings with variable tolerances
Non-precision roller bearingsMTR bearings use precision components to ensure smooth rotation and longer service life

Metal Roller Bearings MTR Questions

What tube size are the MTR bearings designed for?

They are designed for tube diameter Φ25 mm with wall thickness of 0.8 mm or 1.0 mm.

What shaft diameter do these bearings fit?

The bearings are designed for a shaft diameter of Φ8 mm.

Are there different model numbers for different wall thicknesses?

Yes, MTR-25X0.8-8 for 0.8 mm wall thickness and MTR-25X1.0-8 for 1.0 mm wall thickness.

Can the bore size be changed for special orders?

Yes, special bore sizes can be customized based on large quantity requirements.

What material is the housing made of?

The housing is made of metal for durability and strength in industrial applications.

Are these bearings suitable for heavy weight conveying?

Yes, they are designed for medium to heavy weight conveying applications with consistent performance.

Get a Price for Metal Roller Bearings MTR

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