AndyMark Flyer Overdrive Gearbox, Sport Gearbox Input, 2.89:1 / 1:2.89
Description
- AndyMark Flyer Overdrive Gearbox, Sport Gearbox Input, 2.89:1 / 1:2.89
- Innovates with dual overdrive/underdrive capability
- Adapts gears with 1/2 inch hex bore for ease
- Facilitates mounting with 'wing' design on 1 inch extrusion
- Offers multiple motor input options: CIM/NEO, Falcon
- Supports gearbox customization with user-supplied gears
The AndyMark Flyer Overdrive Gearbox, Sport Gearbox Input, 2.89:1 / 1:2.89 is an innovative gearbox designed for versatility in competitive robotics applications. It is uniquely engineered to function both as an overdrive and underdrive gearbox, allowing users to adjust the output shaft speed relative to the input. This dual functionality is facilitated by the inclusion of gears with a 1/2 inch hex bore, enabling easy configuration changes without additional purchases.
The gearbox features a short 1/2 inch hex output shaft that extends approximately 2 inches from either face, with the option to replace it with any Toughbox output shaft. The design accommodates a pass-through shaft setup by replacing the rear bearing with another 1/2 inch hex bearing, allowing for custom shaft lengths without machining. This adaptability makes it suitable for various applications, such as roller intakes when combined with compatible wheels.
Mounting the gearbox is straightforward due to its "wing" design, which fits over any 1 inch wide extrusion, such as Peanut or Box Tube, facilitating easy integration into a robot's frame. The gearbox offers three hardware input options: CIM/NEO, Falcon, and Sport Gearbox. The CIM/NEO and Falcon options are ideal for flywheel shooters, providing a bearing-supported output shaft optimized for absorbing shock loads. The Sport Gearbox option offers an additional reduction stage and secure mounting, making it suitable for mechanisms like climbers.
For those seeking customization, the gearbox is available without gears, allowing users to supply their own 20DP, 1/2 inch wide, 1/2 inch hex bore gears totaling 70 teeth. This flexibility supports a wide range of gear ratios and configurations, including using the gearbox shell as a mounting point for extended shafts.
Note: Ensure proper support and retention of shafts to prevent mechanical failure during operation.
- 1x AndyMark Flyer Overdrive Gearbox, Sport Gearbox Input, 2.89:1 / 1:2.89
- Diametral Pitch: 20
- Gear Spacing: 70 teeth
- Gear Width: 0.500 inches
- Motor Input: CIM/NEO, Falcon, 1/2 inch Hex
- Motor Quantity: 1
- Output Shaft: 0.500 inch Hex, 2 inches long
- Plate Material: 5052 Aluminum
- Pressure Angle: 20 degrees
- Ratio: 1:2.88, 1:2.5, 1.92, 1.33, 1.33:1.92:1, 2.5:1, 2.88:1
- Weight: 1.04 - 1.56 pounds
Estimate shipping
Refund Policy
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.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
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 Authorization (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, tires, 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, odor-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 fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (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]".