Machined Gravity Roller
The Machined Gravity Roller is a precision bearing roller designed for gravity-fed material handling with a machined carbon steel bearing house and available in multiple tube diameters, shaft sizes, and surface treatments. It supports load transfer along a single axis and is suitable for integration into roller conveyors, transfer tables, and assembly lines where consistent tube diameter and shaft size are required. The unit is available with or without shaft end tapping and can be supplied in steel or SUS304 stainless steel with galvanized, chrome plated, PU or rubber coating options.
Product Overview
The Machined Gravity Roller is a precision bearing roller designed for gravity-fed material handling with a machined carbon steel bearing house and available in multiple tube diameters, shaft sizes, and surface treatments. It supports load transfer along a single axis and is suitable for integration into roller conveyors, transfer tables, and assembly lines where consistent tube diameter and shaft size are required. The unit is available with or without shaft end tapping and can be supplied in steel or SUS304 stainless steel with galvanized, chrome plated, PU or rubber coating options.
Part of the Roller range, used in Warehouse and Distribution Centres.
Key Benefits
- Precision bearing ensures smooth rotation under load with minimal friction
- Machined carbon steel bearing house provides consistent alignment and durability
- Multiple tube diameters and shaft sizes match existing conveyor tube standards
- Available with or without shaft end tapping to suit different mounting needs
- Surface treatments including galvanized, chrome plated, PU and rubber coating for environmental or surface protection
Application Scenarios
- Gravity roller sections in a conveyor line where product moves by hand or gravity
- Transfer tables between two conveyor lines requiring consistent tube diameter and shaft fit
- Assembly line stations where a roller must support a load without powered drive
- Warehouse sorting lines where rollers are mounted on a fixed frame with consistent spacing
- Material handling systems where multiple rollers are used in a row and must align on the same tube diameter
Who It Is For
- Conveyor system integrators building gravity roller sections with consistent tube and shaft specs
- Material handling equipment builders requiring matched roller sets for transfer points
- Assembly line and production line builders needing reliable, repeatable roller dimensions
- Industrial distributors stocking gravity rollers by tube diameter and shaft size
- Warehouse and logistics automation contractors specifying rollers for fixed tube diameter systems
Problems It Solves
- Mismatched roller shafts or tube diameters that prevent proper fit on existing conveyor frames
- Rollers that bind or wobble due to poor bearing housing alignment or material quality
- Inconsistent roller performance across a line caused by mixed bearing types or housing materials
- Lack of surface protection on rollers used in wet, corrosive or high-wear environments
- Need to source rollers from multiple suppliers when a single consistent range is required
Technical Features
- Precision bearing with machined carbon steel bearing house for consistent performance
- Available in multiple tube diameters: ø25, ø32, ø38, ø50, ø57, ø60, ø76, ø89 mm
- Shaft sizes: ø8, ø10, ø12, ø15, ø20 mm, with options for shaft end tapping or not
- L (shaft end tapping) = L = W + 10, L (no shaft end tapping) = L = W + 40
- Tube material available in carbon steel or SUS304 stainless steel
- Surface treatments include galvanized, chrome plating, PU coating, and rubber coating
Materials
- Carbon steel bearing house for general industrial use
- SUS304 stainless steel tube for corrosive or washdown environments
- Galvanized surface treatment for rust resistance in moderate environments
- Chrome plated surface for wear resistance and smooth finish
- PU coating for noise reduction and surface protection
- Rubber coating for grip and vibration damping
Quality Control
- Bearing rotation checked by hand for free movement and smooth operation
- Tube diameter and thickness verified against the specified dimensions
- Shaft size and tapping confirmed against the order requirements
- Surface treatment inspected for uniformity and coverage
- Material grade confirmed against the steel or SUS304 specification
Customization Options
- Choose tube diameter and thickness to match existing conveyor tube standards
- Select shaft size and tapping option based on mounting method
- Choose surface treatment to suit environmental conditions
- Select tube material (carbon steel or SUS304) for corrosion resistance
- Specify coating type (PU or rubber) for grip, noise or surface protection
Use Guide
- Match the tube diameter and shaft size to the existing conveyor frame or tube standard
- Use the L = W + 10 dimension if shaft end tapping is required
- Use the L = W + 40 dimension if no shaft end tapping is needed
- Choose surface treatment based on environment: galvanized for moderate, chrome for wear, PU/rubber for grip or noise
- Select SUS304 tube for wet, washdown or corrosive areas
Specifications
| Model No | 03WR |
|---|---|
| Bearing Type | Precision Bearing |
| Bearing House | Carbon Steel |
| Tube Material | Steel, SUS304 |
| Surface Treatment | Galvanized, Chrome plating, PU & Rubber Coating |
| Tube Diameter | ø25, ø32, ø38, ø50, ø57, ø60, ø76, ø89 mm |
| Tube Thickness | 1.0, 1.5, 2.0, 2.5, 3.0 mm |
| Shaft Diameter | ø8, ø10, ø12, ø15, ø20 mm |
| Shaft End Tapping | Available or not available |
| L (with tapping) | L = W + 10 |
| L (without tapping) | L = W + 40 |
Manufacturing Process
Step 1
Machining of the carbon steel bearing house to precise tolerances
Step 2
Assembly of the precision bearing into the housing
Step 3
Tube cutting and forming to specified diameter and thickness
Step 4
Shaft end tapping or finishing based on order specification
Step 5
Surface treatment application (galvanizing, chrome plating, PU or rubber coating)
Compared With Other Options
| Stamped roller housings | Machined housing offers better alignment and longer life under load compared to stamped parts |
|---|---|
| Standard roller with pressed-in bearing | Precision bearing in a machined housing reduces friction and wear over time |
| Rollers without surface treatment | Galvanized, chrome plated, PU or rubber coatings extend service life in harsh or high-wear environments |
Machined Gravity Roller Questions
What tube diameters are available for the Machined Gravity Roller?
Available in ø25, ø32, ø38, ø50, ø57, ø60, ø76, and ø89 mm.
What shaft sizes are offered?
Shaft sizes include ø8, ø10, ø12, ø15, and ø20 mm.
Can the shaft end be tapped?
Yes, options are available with or without shaft end tapping.
What surface treatments are available?
Galvanized, chrome plating, PU coating, and rubber coating are available.
Is SUS304 stainless steel available?
Yes, the tube material can be supplied in SUS304 for corrosion resistance.
What is the difference between L = W + 10 and L = W + 40?
L = W + 10 is for rollers with shaft end tapping; L = W + 40 is for those without tapping.
Get a Price for Machined Gravity Roller
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.