Tapered Gravity Roller
The Tapered Gravity Roller is a precision bearing roller with a tapered tube design, model 04WR, built for consistent load handling on gravity conveyors. It features a carbon steel bearing house and is available in steel or SUS304 tube material with galvanized or coated surface treatment. The roller has a small end diameter of 50 mm, a big end diameter of D2, and a taper degree of 3.6. It is designed to match standard tube diameters and shaft sizes used in conveyor systems.
Product Overview
The Tapered Gravity Roller is a precision bearing roller with a tapered tube design, model 04WR, built for consistent load handling on gravity conveyors. It features a carbon steel bearing house and is available in steel or SUS304 tube material with galvanized or coated surface treatment. The roller has a small end diameter of 50 mm, a big end diameter of D2, and a taper degree of 3.6. It is designed to match standard tube diameters and shaft sizes used in conveyor systems.
Part of the Roller range, used in Warehouse and Distribution Centres.
Key Benefits
- Tapered tube design allows for smooth load transition between rollers and conveyor sections
- Precision bearing ensures consistent rotation under load and reduces friction
- Carbon steel bearing house provides durability in industrial environments
- Available in steel or SUS304 tube material for different corrosion resistance needs
- Galvanized or coated surface treatment improves resistance to wear and environmental exposure
Application Scenarios
- Gravity conveyors in warehouse loading zones where cartons or pallets move without powered drive
- Assembly lines where parts are manually pushed between workstations with consistent alignment
- End-of-line transfer points where product changes direction or transitions between conveyor types
- Material handling systems requiring a consistent roller diameter across a section to prevent load binding
- Conveyor sections where a tapered roller helps guide items into a straight path or alignment
Who It Is For
- Conveyor system integrators building gravity conveyors with consistent roller alignment
- Material handling equipment builders requiring rollers that match existing tube and shaft dimensions
- Industrial distributors sourcing rollers in volume with consistent mechanical fit
- Production line builders needing reliable, low-maintenance rollers for manual transport
Problems It Solves
- Load binding or misalignment when moving between rollers of different diameters
- Inconsistent roller height or alignment causing product to tilt or jam
- Rollers that fail prematurely due to poor bearing support or weak housing
- Lack of matching roller dimensions when replacing or expanding a conveyor system
- Difficulty in sourcing rollers with consistent taper and shaft fit across multiple suppliers
Technical Features
- Tapered tube design with small end diameter of 50 mm and big end diameter of D2
- Taper degree of 3.6 for gradual transition between roller ends
- Precision bearing ensures smooth rotation and consistent performance
- Carbon steel bearing house provides structural support and load capacity
- Tube thickness of 2.5 mm and tube diameter of ø12 mm for standard shaft fit
- Length L = W + 11 and E = W + 9, where W is the width of the conveyor section
- Available with galvanized or coated surface treatment for improved durability
Materials
- Steel tube for general industrial use with standard load handling
- SUS304 tube for applications requiring higher corrosion resistance
- Galvanized surface treatment for improved resistance to moisture and wear
- Coated surface treatment for protection against abrasion and environmental exposure
Quality Control
- Taper degree verified against the 3.6 specification
- Tube diameter and thickness checked to ensure ø12 mm and 2.5 mm tolerance
- Bearing rotation tested for smooth operation under load
- Surface treatment inspected for uniformity and coverage
- Final dimension check against D1, D2, L and E values
Customization Options
- Tube material selected between steel and SUS304
- Surface treatment selected between galvanized and coated
- Taper degree and end diameters adjusted based on conveyor width and alignment needs
- Roller length and E dimension adjusted to match conveyor section width W
Use Guide
- Ensure the roller's small end diameter of 50 mm matches the existing tube diameter in your system
- Verify that the taper degree of 3.6 matches the alignment requirements of your conveyor section
- Use the formula L = W + 11 and E = W + 9 to determine correct roller length and spacing
- Select steel tube for general use or SUS304 for corrosive environments
- Choose galvanized or coated surface treatment based on exposure to moisture or abrasion
Specifications
| Model No | 04WR |
|---|---|
| Bearing Type | Precision Bearing |
| Bearing House | Carbon Steel |
| Tube Material | Steel, SUS304 |
| Surface Treatment | Galvanized, Coated |
| Tube Thickness | 2.5 mm |
| Tube Diameter | ø12 mm |
| Taper Degree | 3.6 |
| Small End Diameter | 50 mm |
| Big End Diameter | D2 |
| Length | L = W + 11 |
| E | E = W + 9 |
Manufacturing Process
Step 1
Tube forming and tapering to specified dimensions
Step 2
Precision bearing installation into carbon steel bearing house
Step 3
Tube welding or assembly to the bearing housing
Step 4
Surface treatment application (galvanizing or coating)
Step 5
Final inspection and packing
Compared With Other Options
| Straight gravity rollers | Tapered design guides product alignment and reduces misalignment at transitions |
|---|---|
| Rollers with pressed steel housings | Precision bearing in carbon steel housing offers better load support and longer life |
| Rollers with standard bearing types | Precision bearing reduces friction and ensures consistent rotation under load |
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Tapered Gravity Roller Questions
What is the small end diameter of the tapered gravity roller?
The small end diameter is 50 mm.
What is the taper degree of the roller?
The taper degree is 3.6.
What materials are available for the tube?
The tube is available in steel or SUS304.
What surface treatments are offered?
The roller is available with galvanized or coated surface treatment.
How is the length of the roller determined?
Length L = W + 11, where W is the width of the conveyor section.
Can the taper and end diameters be customized?
Yes, the taper degree and end diameters can be adjusted based on conveyor width and alignment needs.
Get a Price for Tapered Gravity Roller
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.



