Description
Intelligent Power Wheelchair Front Omni Wheel Replacement
How to Choose the Correct Axle Bore Size?
Before purchasing, please ensure you measure the correct dimension of your existing wheel to guarantee a perfect fit for your installation shaft or bolt (e.g., 17mm axle/bolt).
✔️ Correct Measurement (Central Bore ID):

You must measure the Inner Diameter (ID) of the central bearing. To do this, insert the inside jaws of your caliper completely into the central hole.
Standard Option for WHILL Wheelchair/AGV: 17 mm.
❌ Incorrect Measurement (Flange/Bearing OD):

Do NOT measure the outside of the bearing flange or metal casing. For example, a measurement of around 30.84 mm represents the housing/flange Outer Diameter (OD), NOT the installation hole size.
Specifications & Compatibility
Bearing Inner Diameter (Bore ID): 17 mm (Fits 17 mm round shafts, step bolts, or M17 hardware).
Comprehensive engineering data for replacement and integration references:
| Technical Parameter | 5-Inch Model | 8-Inch Model | 10-Inch Model (Best for Wheelchairs) |
|---|---|---|---|
| Nominal Diameter | 5 Inch | 8 Inch | 10 Inch |
| Actual Wheel Diameter | 127 ± 3mm | 210mm | 259mm |
| Tread / Total Width | 38.5mm | 57.5mm | 72.5mm |
| Mounting Bore Diameter | Φ 12mm | Φ 12mm | Φ 17mm |
| Bearing Specifications | Precision Bearings | Precision Bearings | Industrial 6003 Bearings |
| Dynamic Load Capacity (Per Wheel) | 30 KG (66 lbs) | 60 KG (132 lbs) | 80 KG (176 lbs) |
| Roller Configuration | 10 Pairs (Alternating) | 10 Pairs (Alternating) | 12 Pairs (Alternating) |
This is Our Wheel Instakkation Hole 17mm

Key Application: Perfect fit for WHILL power wheelchair rear/front wheel replacement, industrial AGVs, and custom robotics projects.
Tip: If you measure approximately 16.59 mm on your worn wheel, it is a worn 17 mm bearing.
🔧 Easy Installation (DIY Friendly!)
Upgrading your wheel is incredibly simple and takes less than 5 minutes. No professional mechanics or complex tools required!
* **100% Direct Replacement:** Designed to align perfectly with your original axle. Just slide it on and tighten the bolt.
* **Plug & Play:** The high-quality bearings are pre-pressed into the wheel at our factory. It’s ready to install right out of the box.
* **Simple Tools Needed:** A basic wrench or Allen key is all you need to complete the job.
FREQUENTLY ASKED QUESTIONS
Q: Is this wheel an official Whill part?
A: No, this is a premium, fully compatible aftermarket replacement wheel manufactured to meet or exceed OEM specifications, allowing us to pass the savings directly to you.
Q: Can this wheel be used for custom wheelchair DIY or AMR robotics?
A: Absolutely! Thanks to its heavy-duty load capacity and smooth omni-directional rotation, it is highly sought after for premium custom wheelchair conversion kits and industrial AMR/AGV robotic platforms. Contact our support team for custom axle/sleeve dimensions.
Q: How often should I replace my front omni wheels?
A: For active everyday users, we recommend inspecting the micro-grooves and roller spin every 12 months. Replacing them in pairs ensures a perfectly balanced and aligned ride.









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