Plastic Roller Bearings KTR From Tianhe
The KTR-30X1.5-8 and KTR-30X1.8-8 are plastic roller bearings designed for steel, stainless steel, or PVC tubes with a diameter of 30 mm and wall thicknesses of 1.5 mm or 1.8 mm, featuring an 8 mm shaft diameter. These bearings are integrated into gravity rollers, sprocket rollers, O-belt rollers, and poly-V rollers for use in light to heavy material handling applications. They are built with precision bearings to ensure free rotation and quiet operation, and are made from plastic and nylon materials suitable for washdown environments.
Product Overview
The KTR-30X1.5-8 and KTR-30X1.8-8 are plastic roller bearings designed for steel, stainless steel, or PVC tubes with a diameter of 30 mm and wall thicknesses of 1.5 mm or 1.8 mm, featuring an 8 mm shaft diameter. These bearings are integrated into gravity rollers, sprocket rollers, O-belt rollers, and poly-V rollers for use in light to heavy material handling applications. They are built with precision bearings to ensure free rotation and quiet operation, and are made from plastic and nylon materials suitable for washdown environments.
Part of the Plastic Roller Bearings KTR range, used in Warehouse and Distribution Centres.
Key Benefits
- Designed for 30 mm diameter tubes with 1.5 mm or 1.8 mm wall thickness
- 8 mm shaft diameter matches standard roller shafts
- Free running with low friction and quiet operation
- Suitable for washdown and clean environments due to plastic and nylon construction
- Integrated precision bearings reduce wear and extend roller life
Application Scenarios
- Gravity roller conveyors in light to medium weight manufacturing lines
- Assembly lines where smooth, quiet transfer of components is required
- Mould manufacturing and engine production where vibration and noise must be minimized
- Warehouse loading and unloading stations using plastic or metal rollers
- Electrical parts handling where non-marking and non-conductive materials are needed
Who It Is For
- Conveyor system integrators building gravity roller lines
- Material handling equipment builders using plastic roller bearings in rollers
- Industrial distributors stocking roller components by tube size and shaft diameter
- Manufacturers of sprocket rollers, O-belt rollers, and poly-V rollers
- Production line builders requiring quiet, low-friction roller solutions
Problems It Solves
- Mismatched roller bearings that do not fit standard 30 mm tubes with 1.5 mm or 1.8 mm thickness
- Rollers that bind or make noise due to poor bearing integration
- Lack of washdown-ready components in food, pharmaceutical, or clean room environments
- Inconsistent performance when using mixed bearing types across a roller line
- Difficulty sourcing plastic roller bearings with precise shaft and tube compatibility
Technical Features
- Specifically designed for 30 mm tube diameter with 1.5 mm or 1.8 mm wall thickness
- 8 mm shaft diameter for compatibility with standard roller shafts
- Precision bearings integrated into the housing for smooth rotation
- Plastic and nylon housing materials for corrosion resistance and low weight
- Free running design reduces effort and wear during operation
Materials
- Plastic housing for corrosion resistance and low weight
- Nylon construction for durability and quiet operation
- Precision bearings integrated into the plastic housing
- Suitable for use with steel, stainless steel, and PVC tubes
- Resistant to moisture and cleaning agents in washdown environments
Quality Control
- Dimensional check against 30 mm tube diameter and 1.5 mm or 1.8 mm thickness
- Shaft diameter verified at 8 mm for correct fit
- Rotation tested by hand to confirm free running
- Material grade confirmed against plastic and nylon specification
- Final inspection before packing
Customization Options
- Special bore sizes available upon request for large quantity orders
- Alternative tube diameters and thicknesses may be considered with volume
- Shaft diameter adjustments possible for high volume production
- Material options limited to plastic and nylon as per standard
- Custom packaging available for bulk orders
Use Guide
- Verify that the tube diameter is 30 mm and wall thickness is 1.5 mm or 1.8 mm before installation
- Ensure the shaft diameter is 8 mm to match the bearing bore
- Use in applications where low noise and resistance to moisture are required
- Avoid high impact or extreme load conditions beyond the intended use
- Clean with water or mild cleaning agents; avoid harsh chemicals that may degrade plastic
Specifications
| Model No | KTR-30X1.5-8 |
|---|---|
| Model No | KTR-30X1.8-8 |
| Tube Diameter | 30 mm |
| Tube Thickness | 1.5 mm or 1.8 mm |
| Shaft Diameter | 8 mm |
| Material | Plastic and nylon |
| Application | Gravity rollers, sprocket rollers, O-belt rollers, poly-V rollers |
Manufacturing Process
Step 1
Molding of plastic and nylon housing
Step 2
Integration of precision bearings into the housing
Step 3
Shaft alignment and fit testing
Step 4
Final inspection for free rotation and dimensional accuracy
Step 5
Packing for shipment
Compared With Other Options
| Metal roller bearings | Plastic roller bearings are lighter, quieter, and resistant to corrosion, but may have lower load capacity than metal |
|---|---|
| Standard pressed-in bearings | Integrated plastic bearings are designed for specific tube sizes and offer better alignment and longer life |
| Non-precision roller bearings | These bearings include precision components to ensure consistent free rotation and reduce wear |
Plastic Roller Bearings KTR Questions
What tube sizes are these bearings designed for?
They are designed for 30 mm diameter tubes with wall thicknesses of 1.5 mm or 1.8 mm.
What shaft diameter do these bearings fit?
They are designed for an 8 mm shaft diameter.
Are these bearings suitable for washdown environments?
Yes, the plastic and nylon construction makes them suitable for washdown and clean environments.
Can I get custom bore sizes?
Yes, special bore sizes are available for large quantity orders.
What materials are used in the housing?
The housing is made from plastic and nylon for durability and corrosion resistance.
Are precision bearings included?
Yes, precision bearings are integrated into the housing for smooth, quiet operation.
What types of rollers can these bearings be used in?
They are used in gravity rollers, sprocket rollers, O-belt rollers, and poly-V rollers.
Get a Price for Plastic Roller Bearings KTR
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.