Plastic Gravity Roller Bearing
The P893020 plastic gravity roller bearing is designed for use with a tube diameter of Φ89 mm and wall thickness of 3.0 mm, featuring a shaft diameter of Φ20 mm and a precision bearing type of 6205. It is constructed with a plastic housing and is intended for gravity roller applications in material handling systems. The unit is engineered for free-running operation with quiet performance and is suitable for use with steel, stainless steel, and PVC tubes.
Product Overview
The P893020 plastic gravity roller bearing is designed for use with a tube diameter of Φ89 mm and wall thickness of 3.0 mm, featuring a shaft diameter of Φ20 mm and a precision bearing type of 6205. It is constructed with a plastic housing and is intended for gravity roller applications in material handling systems. The unit is engineered for free-running operation with quiet performance and is suitable for use with steel, stainless steel, and PVC tubes.
Part of the Plastic Roller Bearings range, used in Assembly and Production Lines.
Key Benefits
- Designed for tube diameter Φ89 mm and wall thickness 3.0 mm with shaft diameter Φ20 mm
- Precision bearing type 6205 ensures smooth and consistent rotation
- Plastic housing reduces weight and provides corrosion resistance
- Free-running operation with low noise during continuous use
- Suitable for use with steel, stainless steel, and PVC tubes in varied environments
Application Scenarios
- Gravity roller conveyors in light to medium weight manufacturing lines
- Assembly lines where parts are moved by hand along a roller track
- Warehouse loading and unloading stations using gravity-fed roller systems
- Mould manufacturing facilities requiring quiet, low-friction roller movement
- Electrical parts production lines where non-marking and non-conductive materials are required
Who It Is For
- Conveyor system integrators building gravity roller lines
- Material handling equipment builders sourcing standardized roller bearings
- Industrial distributors stocking plastic roller bearings by tube size and shaft diameter
- Manufacturers of light to medium weight conveyors needing reliable, quiet components
- Production line builders requiring components compatible with standard tube dimensions
Problems It Solves
- Mismatched roller bearings that do not fit standard tube diameters and shaft sizes
- Noisy or binding roller units due to poor bearing fit or low-quality housing
- Corrosion or wear in wet or washdown environments from metal housings
- Inconsistent performance across multiple roller units in a single conveyor line
- Difficulty in sourcing a single component that matches both tube and shaft dimensions
Technical Features
- Plastic housing designed for integration with steel, stainless steel, and PVC tubes
- Precision bearing type 6205 ensures consistent rotation and load handling
- Shaft diameter of Φ20 mm matches standard roller shafts for direct fit
- Tube diameter compatibility of Φ89 mm with wall thickness of 3.0 mm
- Free-running design with low rolling resistance for smooth gravity operation
Materials
- Plastic housing for lightweight, non-corrosive, and non-conductive use
- 6205 precision bearing for consistent rotational performance
- Compatible with steel, stainless steel, and PVC tubes for diverse industrial use
Quality Control
- Bearing rotation tested by hand for free movement and smooth operation
- Shaft diameter verified against Φ20 mm specification before packing
- Tube diameter and wall thickness confirmed against Φ89 mm and 3.0 mm
- Housing integrity checked for cracks or dimensional deviations
- Final visual inspection to ensure no damage or debris in the unit
Customization Options
- Special bore sizes available upon request for large volume orders
- Alternative shaft diameters possible with sufficient order quantity
- Custom housing dimensions can be developed for non-standard tube sizes
- Material options for housing may be considered based on volume and application
Use Guide
- Ensure the tube diameter is Φ89 mm and wall thickness is 3.0 mm before installation
- Verify shaft diameter is Φ20 mm to ensure proper fit and rotation
- Install only on clean, straight tubes to prevent binding or misalignment
- Use in environments where noise and corrosion are concerns, such as washdown areas
- Check that the bearing rotates freely by hand before mounting on the roller
Specifications
| Model No | P893020 |
|---|---|
| Tube Diameter | Φ89 mm |
| Wall Thickness | 3.0 mm |
| Shaft Diameter | Φ20 mm |
| Bearing Type | 6205 |
| Housing Material | Plastic |
| Application | Gravity roller |
Manufacturing Process
Step 1
Molding of the plastic housing to precise tube and shaft dimensions
Step 2
Insertion and alignment of the 6205 precision bearing into the housing
Step 3
Final inspection of shaft fit and bearing rotation before packaging
Step 4
Quality check against tube diameter and wall thickness specifications
Step 5
Packaging for safe transport and storage
Compared With Other Options
| Metal roller bearings | Plastic housing reduces weight and prevents corrosion, but may have lower load capacity than metal |
|---|---|
| Standard plastic bearings with fixed shafts | This unit allows direct fit to shafts of Φ20 mm, while fixed shaft units require separate mounting |
| Other plastic bearings for different tube sizes | This model is specific to Φ89 mm tube with 3.0 mm wall thickness, so not interchangeable with smaller or larger tubes |
Plastic Gravity Roller Bearing Questions
What tube diameter and wall thickness is this bearing designed for?
It is designed for a tube diameter of Φ89 mm with a wall thickness of 3.0 mm.
What shaft diameter does this bearing fit?
The bearing is designed for a shaft diameter of Φ20 mm.
What type of bearing is used inside the housing?
It uses a precision 6205 bearing for consistent rotation and load handling.
Is the housing made of plastic?
Yes, the housing is made of plastic for lightweight and corrosion-resistant performance.
Can the bore size be changed for special orders?
Yes, special bore sizes can be customized based on large volume requirements.
Is this bearing suitable for use with PVC tubes?
Yes, it is compatible with steel, stainless steel, and PVC tubes.
What is the main application of this bearing?
It is used in gravity roller systems for light to medium weight conveying in manufacturing and warehouse environments.
Get a Price for Plastic Gravity Roller Bearing
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.