Offers a 3:1 external gear ratio for enhanced precision
Provides multiple mounting options for versatility
Operates with standard control signals for easy integration
Switchable between feedback and continuous modes
The Stingray-3 Servo Gearbox (0.51 sec/60°, 20rpm, 1050 oz-in, 600°) (Feedback Mode) is powered by the goBILDA® 5-Turn Torque Servo. This gearbox features a 3:1 external gear ratio, designed to reduce the range while tripling the torque and precision. The servo is mounted within the gearbox, which isolates the load to a steel hub-shaft, supported by a pair of ball bearings, thereby safeguarding the servo from any axial loads.
The design of the gearbox offers a variety of mounting options, thanks to the M4 threaded holes on each side that align with the grid pattern for compatibility throughout the goBILDA® system. The hub on top of the gearbox provides threaded holes for fastening, but there is also the option to fasten directly to the aluminum output gear using M4 hardware and standoffs or spacers. The 8 mm REX bore of the hub-shaft can either drive an 8mm REX shaft or serve as a wire pass-thru.
The Stingray-3 Servo Gearbox operates similarly to a standard servo, albeit larger. Despite the increased range and torque, the control signal remains the same. It can be easily connected to an R/C receiver, an Arduino, Raspberry Pi, or REV controller.
This Servo Gearbox is available in both feedback and continuous modes. In feedback mode, the signal controls the position, while in continuous mode, the signal controls the speed and direction. Regardless of the mode chosen, it can be switched to the other mode using a 3102-0001 servo programmer, as the goBILDA® 5-Turn Torque Servo powering the gearbox is a dual-mode servo.
Please note that the servo has not been modified in any way, making it FTC legal.
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.
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.
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]".
