Plastic Bearing Roller Wheels for Smooth Door and Window Movement
Our Plastic Bearing Roller Wheel for Windows and Doors is designed for aluminium sliding windows, sliding doors, wardrobes, cabinets and other door and window hardware systems. The roller combines a precision miniature ball bearing with a nylon, POM, polyurethane or rubber-coated outer wheel, helping provide smooth movement, lower rolling noise and reliable wear resistance.
Available bearing models include 606ZZ, 608ZZ, 625ZZ, 626ZZ, 627ZZ and 696-2RS. Different wheel diameters, widths, groove profiles, bearing materials and coating materials can be selected according to the customer’s track, installation space and load requirements.
As an OEM supplier of door and window roller components, we support production according to drawings, dimensions or physical samples. Customized colors, materials, packaging and small-batch trial orders are available for suitable projects.
Key Features of Plastic Bearing Roller Wheels
Smooth and Stable Rolling
The miniature deep groove ball bearing helps the wheel rotate smoothly and reduces resistance during repeated opening and closing. It is suitable for sliding windows and doors that require stable movement in a limited installation space.
Nylon, POM, PU and Rubber-Coated Options
Different coating materials provide different performance characteristics:
- Nylon: good strength, wear resistance and dimensional stability
- POM: low friction, smooth surface and precise dimensions
- Polyurethane: quieter movement and good track contact
- Rubber-coated wheel: vibration reduction and softer rolling performance
The suitable material should be selected according to the track material, operating environment, required noise level and expected load.
Multiple Bearing Materials
The internal bearing can be supplied in:
- Carbon steel
- Chrome steel
- Stainless steel
Chrome steel bearings are commonly used for general door and window applications. Stainless steel options are more suitable for humid or corrosion-prone environments. The final material selection should be based on the customer’s performance and price requirements.
Shielded and Sealed Bearing Structures
Available bearing structures include:
- Z
- ZZ
- RS
- 2RS
Shielded bearings help reduce the entry of dust and particles. Rubber-sealed bearings can provide additional protection in applications where moisture or contamination may be present.
Available Bearing Models
We supply plastic-coated and rubber-coated roller wheels using a wide range of miniature bearings.
Common models include:
| Bearing model | Typical application |
|---|---|
| 603 / 604 / 605 | Small window and furniture rollers |
| 606ZZ / 607ZZ | Compact sliding window wheels |
| 608ZZ | Door, window and wardrobe roller systems |
| 625ZZ | Small plastic pulley and sliding door roller |
| 626ZZ | Aluminium window and sliding door bearing wheel |
| 627ZZ | Medium-size coated bearing roller |
| 696-2RS | PU or rubber-coated silent pulley wheel |
Other miniature deep groove ball bearing models can also be evaluated according to the required inner diameter, outer diameter and wheel size.
625ZZ and 626ZZ Sliding Door Roller Bearings
The 625ZZ bearing sliding door roller is often used in compact pulley assemblies, aluminium window rollers, furniture wheels and sliding hardware.
The 626ZZ plastic bearing roller wheel is suitable for applications requiring a larger coated wheel diameter while maintaining a compact bearing structure. A common 626ZZ bearing size is 6 × 19 × 6 mm, but the finished plastic roller diameter and width can be customized.
For example, a POM-coated 626 bearing may be produced with a larger finished outer diameter, depending on the track and installation requirements. The final dimensions should be confirmed according to the customer’s drawing or original sample.
Groove Profiles for Different Sliding Tracks
Different tracks require different roller surfaces. We can supply or develop:
U-Groove Roller Bearings
U-groove wheels are suitable for round or curved guide tracks. Groove depth and width should match the track profile.
Concave Roller Bearings
Concave wheels help guide the roller along a specific rail or sliding track. They are frequently used in door, window, drawer and furniture systems.
H-Type Plastic Pulley Bearings
H-type rollers have raised sides or a central guiding profile, depending on the design. They are used where the wheel must remain aligned with the track.
Flat and Round-Surface Bearing Wheels
Flat and round-surface rollers are commonly used in aluminium window frames, screen windows, wardrobes and cabinet sliding systems.
Special groove profiles can be developed according to the customer’s sample, technical drawing or track dimensions.
Applications
Our nylon and plastic bearing roller wheels can be used for:
- Aluminium sliding windows
- Aluminium sliding doors
- Glass sliding door systems
- Screen doors and screen windows
- Wardrobes and cabinets
- Sliding drawers
- Furniture hardware
- Shower door rollers
- Display cabinets
- Garage and industrial guide systems
- Hotel, gym and commercial door hardware
The correct roller should be selected according to the track shape, installation structure, load, speed and working environment.
OEM Plastic Bearing Roller Wheel Customization
Standard bearings do not always fit every door or window system. For non-standard projects, we can develop a suitable roller based on the customer’s requirements.
Customized Dimensions
Available customization includes:
- Bearing inner diameter
- Finished wheel outer diameter
- Total wheel width
- Groove width and depth
- Coating thickness
- Installation clearance
- Axle or screw dimensions
Customized Materials
Customers can select:
- Nylon
- POM
- Polyurethane
- Rubber
- Carbon steel bearing
- Chrome steel bearing
- Stainless steel bearing
Customized Colors
Common colors include black, white, grey and natural nylon color. Other colors can be evaluated according to the material, required quantity and color standard.
Customized Packaging
B2B packaging options may include:
- Bulk packing
- Plastic bag packing
- Small inner boxes
- Neutral cartons
- Barcode labels
- Customer labels
- OEM brand packaging
Private-label packaging normally requires confirmation of artwork, label dimensions and order quantity before production.
Production Based on Samples or Drawings
Customers can provide:
- Physical samples
- 2D technical drawings
- 3D files
- Hand-drawn dimensional sketches
- Product photos with measurements
- Track dimensions
- Installation photos
For sample-based development, the roller and related track sample are both helpful. They allow the production team to evaluate the wheel profile, installation clearance and operating contact more accurately.
Before tooling or batch production, important specifications should be confirmed in writing, including dimensions, tolerances, material, hardness, color and packaging.
Small-Batch OEM Orders
Small-batch customization is available for technically suitable projects.
The minimum order quantity depends on:
- Bearing model
- Wheel material
- Existing mold availability
- New mold requirements
- Color requirements
- Packaging method
- Production process
When an existing mold or similar structure can be used, the trial quantity may be relatively low. If a new mold is required, tooling cost and minimum production quantity should be evaluated before sample development.
This approach is suitable for hardware importers, distributors and window accessory brands that need to test a new product before placing a larger order.
Quality Inspection
Before shipment, plastic bearing roller wheels can be checked for:
- Bearing rotation
- Finished outer diameter
- Inner diameter
- Wheel width
- Groove dimensions
- Surface appearance
- Coating completeness
- Wheel concentricity
- Assembly stability
- Color and packaging
Load capacity and service life depend on the bearing model, wheel material, track condition, installation structure and operating environment. Buyers requiring a specific load rating should provide the expected working load and testing standard before production.
Why Choose Us as Your OEM Bearing Wheel Supplier?
We supply standard and customized bearing wheels for door and window hardware applications, including nylon-coated bearings, POM pulley wheels, PU-coated rollers and rubber-coated bearing assemblies.
Our service supports:
- OEM production based on samples or drawings
- Multiple miniature bearing models
- Custom wheel sizes and groove profiles
- Nylon, POM, PU and rubber materials
- Carbon steel, chrome steel and stainless steel options
- Small-batch trial production
- Neutral or customized packaging
- B2B quotations for importers, wholesalers and manufacturers
Whether you require a standard 608ZZ plastic roller bearing, a 625ZZ sliding door roller, or a customized 626ZZ nylon bearing wheel for aluminium windows, please send us your specifications for evaluation.
Request a Quote
Please provide the following information for a faster quotation:
- Bearing model
- Inner diameter
- Finished wheel diameter
- Wheel width
- Groove profile and dimensions
- Wheel material
- Required color
- Estimated order quantity
- Packaging requirements
- Product application
- Drawing, sample or clear photos
We will review your requirements and recommend a suitable bearing, coating material and production solution.
