The AndyMark 4in. Performance Wheel w/ 1.125in. Bearing Bore is a robust and durable wheel crafted from solid 6061 aluminum, renowned for its resilience in competitive robotics. This wheel has been a staple in the FIRST Robotics Competition, demonstrating its reliability and strength. The current version is designed to be cost-effective, utilizing a custom extrusion process rather than being fully machined from billet. It is engineered to withstand the rigorous demands of robotics competitions and is compatible with motion hardware featuring a 1.875 in. 6-hole bolt circle, common in AndyMark and other competitive robotics products. The wheel is intended to be supported by 1.125 in. OD flanged bearings. It does not come with tread material, allowing users to customize the wheel's performance according to specific needs. The wheel is designed to accommodate rivets for tread attachment, with no pre-drilled holes on the rim, offering flexibility for teams to install rivets as required. Note: It is recommended to use steel 1/8" diameter rivets with a 0.251" - 0.312" grip range for optimal performance.
If you are not satisfied for whatever reason with a Product you bought on the Site, it is possible to return it for refund within 30 days from the date you received it unless otherwise indicated in the Product listing. You must first advise the Vendor associated with your order in your account to obtain a return authorization (‘’RA’’) number before returning a Product. (‘’RA’’) numbers are valid for 30 days, within which time the returned Products should be received by the Vendor. No returns will be accepted without having previously obtained an (‘’RA’’) number. The Product must then be returned in its original packaging (in perfect condition for resale) with its receipt and your (‘’RA’’) number. Reimbursement will be denied for any Products which do not conform to the above mentioned conditions.
Build-it-yourself Robot Parts are not refundable once assembled. Robots & Kits requiring assembly or soldering are also not refundable once assembled, soldered or modified in any way. All sales of robotic software and apps are final and cannot be refunded or exchanged. Returns are not accepted on special orders and clearance items except when they are found defective, in which case the Product may be repaired or replaced at the Vendor’s discretion. 20% Restocking fees may apply if you are returning a large quantity of the same Product that was ordered specifically for you from the manufacturer.
Please note that all items will be reimbursed within 7 to 14 days of receiving the Product (shipping fees excluded). You must also cover the cost of returning the Product. Shipping fees will only be refunded if the return is a result of a shipping error on our part. Cleaning fees of USD 100 may also be charged if a domestic robot is returned and has not been properly cleaned.