Roller Plastic Bearings
The P250808 is a plastic roller bearing designed for use with a 25 mm tube diameter, 0.8 mm wall thickness, and 8 mm shaft diameter. It features a 608 precision bearing type and is made with plastic housing and nylon bearing. The unit is intended for gravity roller applications and provides smooth, quiet operation with minimal rolling resistance.
Product Overview
The P250808 is a plastic roller bearing designed for use with a 25 mm tube diameter, 0.8 mm wall thickness, and 8 mm shaft diameter. It features a 608 precision bearing type and is made with plastic housing and nylon bearing. The unit is intended for gravity roller applications and provides smooth, quiet operation with minimal rolling resistance.
Part of the Plastic Roller Bearings range, used in Assembly and Production Lines.
Key Benefits
- Designed for 25 mm tube diameter with 0.8 mm wall thickness and 8 mm shaft
- 608 precision bearing type ensures smooth and free-running performance
- Plastic housing and nylon bearing reduce noise and support quiet operation
- Suitable for steel, stainless steel, and PVC tubes in various industrial environments
- Ideal for washdown and clean environments due to non-corrosive materials
Application Scenarios
- Gravity roller systems in light to medium weight conveying lines
- Assembly lines where smooth, quiet product movement is required
- Mould and mechanical parts manufacturing where vibration and noise must be minimized
- Warehouse loading and unloading stations with frequent product handling
- Electrical and engine manufacturing lines using gravity rollers with consistent rotation
Who It Is For
- Conveyor system integrators building gravity roller lines
- Material handling equipment builders sourcing consistent roller components
- Industrial distributors stocking plastic roller bearings by tube and shaft size
- Manufacturers of gravity rollers, sprocket rollers, and O-belt rollers
- Production line builders requiring low-maintenance, quiet-running bearings
Problems It Solves
- Inconsistent roller performance when using mismatched or non-standard bearings
- Noise and vibration in gravity roller systems due to poor bearing quality
- Corrosion or wear in wet or washdown environments from metal bearings
- Difficulty in sourcing a single supplier for roller bearings matching specific tube and shaft dimensions
- Inefficient rotation or binding in rollers due to improper bearing fit or material
Technical Features
- Housing made from plastic material for lightweight and non-corrosive use
- Nylon bearing material for low friction and quiet operation
- 608 precision bearing type integrated into the housing for consistent rotation
- Designed for 25 mm tube diameter with 0.8 mm wall thickness and 8 mm shaft
- Pre-assembled and ready for direct mounting onto gravity roller shafts
Materials
- Plastic housing for non-corrosive and lightweight performance
- Nylon bearing for low friction and quiet operation
- Compatible with steel, stainless steel, and PVC tubes
- Suitable for washdown and clean environments
Quality Control
- Bearing rotation checked for free movement and smooth operation
- Housing dimensions verified against the 25 mm tube and 8 mm shaft specifications
- Material grade confirmed as plastic housing and nylon bearing
- Pre-assembly check for correct bearing fit and alignment
Customization Options
- Special bore sizes available upon request for large quantity orders
- Alternative housing materials may be considered for high-volume custom requests
- Bearing type can be adjusted based on load and speed requirements for bulk orders
Use Guide
- Verify that the tube diameter is 25 mm and wall thickness is 0.8 mm before installation
- Ensure the shaft diameter is 8 mm to match the bearing bore
- Install the bearing onto the roller shaft with the housing aligned properly
- Use in environments where noise and corrosion are concerns, such as washdown or clean areas
- Check for smooth rotation after installation to confirm proper fit
Specifications
| Model No | P250808 |
|---|---|
| Tube Diameter | 25 mm |
| Wall Thickness | 0.8 mm |
| Shaft Diameter | 8 mm |
| Bearing Type | 608 |
| Housing Material | Plastic |
| Bearing Material | Nylon |
Manufacturing Process
Step 1
Molding of the plastic housing to precise dimensions
Step 2
Insertion and alignment of the 608 precision bearing
Step 3
Final inspection of bearing rotation and housing fit
Step 4
Packaging for shipment and storage
Compared With Other Options
| Metal roller bearings | Plastic housing reduces weight and noise, but may have lower load capacity than metal |
|---|---|
| Standard pressed-in bearings | Integrated plastic housing allows easier replacement and better alignment with tube size |
| Other plastic bearings with different shaft sizes | P250808 is specifically sized for 25 mm tube and 8 mm shaft, ensuring correct fit and performance |
Roller Plastic Bearings Questions
What tube diameter is the P250808 designed for?
It is designed for a 25 mm tube diameter with 0.8 mm wall thickness.
What shaft size does the bearing fit?
The bearing fits a shaft diameter of 8 mm.
What type of bearing is used in the P250808?
It uses a 608 precision bearing type.
Is the housing made of plastic?
Yes, the housing is made from plastic material.
Can the bearing be used on stainless steel and PVC tubes?
Yes, it is designed for use with steel, stainless steel, and PVC tubes.
Are special bore sizes available?
Yes, special bore sizes can be customized for large quantity orders.
Get a Price for Roller Plastic Bearings
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.