AndyMark 4in. HD Mecanum Wheels 1/2in. Hex, Full Set
Support up to 200 lbs per wheel
Enable omnidirectional movement
Feature 9 durable urethane rollers
Constructed with polycarbonate and steel
Optimized for advanced robotics use
The AndyMark 4in. HD Mecanum Wheels 1/2in. Hex, Full Set is a sophisticated wheel system designed for advanced robotics applications. This set includes two 'right' and two 'left' wheels, essential for creating a functional mecanum drive system. The unique configuration of these wheels allows for omnidirectional movement, which is crucial for maneuverability in robotics. The wheels are designed to form an 'X' pattern when viewed from above, ensuring optimal performance in a mecanum drive setup.
Each wheel in this set is capable of supporting a load of up to 200 pounds, making them suitable for heavy-duty applications. The wheels are constructed with a molded black polycarbonate interior and a zinc-plated steel perimeter, providing durability and strength. The robust design ensures that the wheels can handle significant loads while maintaining performance.
The wheels feature nine gray urethane rubber rollers with a durometer rating of 80A, which are mounted on a nylon core and ride on a stationary brass tube. This design facilitates smooth and efficient movement, enhancing the wheel's ability to handle various terrains. The rollers are sandwiched between two steel plates, which are riveted to the polycarbonate hubs, ensuring structural integrity.
These wheels are particularly effective when used in intake systems, as their angled design aids in directing objects efficiently. The 1/2 inch hex bore is molded directly into the polycarbonate center body, making it suitable for light-duty applications, such as FTC robots or non-drive train FRC items.
Note: Ensure proper configuration of 'right' and 'left' wheels to avoid operational issues.
1x AndyMark 4in. HD Mecanum Wheels 1/2in. Hex, Full Set
2x HD Mecanum Plate
2x Hub
9x Individual 4 in. Wheel Roller
9x Brass Axle Tube
9x M3 x 55 mm SHCS
9x M3 x 0.5 in Nylock Nut
18x 0.125 in diameter Rivet
Diameter: 4 inches
Width: 2.18 inches
Inner Body Material: Molded black polycarbonate
Outer Body Material: 0.12 in. thick zinc-plated steel
Bolt Pattern: 6 holes (0.2 in. diameter) on a 1.875 in. diameter circle
Bore: Bearing Bore, Nub Bore, 1/2 in. Hex, 3/8 in. Hex
Forward/Reverse Coefficient of Friction: 0.7 (on tight pile carpet)
Load Capacity: 200 pounds per wheel
Number of Rollers: 9
Roller Axle: Brass tube
Roller Bearing Material: Nylon spinning over brass tube
Roller Durometer: 80A
Inner Roller Material: Nylon (white)
Outer Roller Material: TPU
Sideways Coefficient of Friction: 0.6 (on tight pile carpet)
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
United Kingdom consumers exercising their statutory Right of Cancellation are subject to different conditions. See the Statutory Right of Cancellation.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorisation (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A £100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables * — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tyres, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odour-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly * — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps * — Final sale only, due to licensing restrictions.
Clearance Items * — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items * — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfil a customer request.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".