High-Performance Rolled Ball Screws for Precision Motion Control
R-Series Rolled Ball Screws from Fangtooth are built for engineers and OEMs who demand precision, reliability, and simplicity in motion control applications. Perfect for linear upgrades, automation systems, and high-speed designs. The R-Series delivers consistent accuracy, extended life, and effortless integration.
Fast Ball Screw Delivery Program - Begins Oct 1!
F2RFU - Rolled Flange Unit (16mm - 40mm DIA / All 10mm leads)
SHIP NOW – Standard Lengths in Stock (2 day shipping)
CUSTOM NOW – Custom Lengths (2 week shipping)
The type F and D ball nut utilize internal ball returns of cast steel. The ball returns are captured in the ball nut to prevent the returns from coming out of the assembly during ball recirculation. This design allows for high DN (rotation speed) as well as high translational speeds when compared to external or end type ball returns.
Benefits:
- High Quality Ball Screws with Internal re-circulation Steel Inserts
- Order the whole assembly with one part number including the support bearings.
Rolled Ball Screws That Maximize Accuracy
Designed to convert rotational motion into smooth, efficient linear movement, our ball screws offer excellent load capacity and durability. With low friction and tight tolerance levels, they ensure precise positioning and repeatability, even under heavy loads.
Applications:
- CNC Machines: Accurate control in machining processes.
- Robotics: Precision in automated movements.
- Medical Equipment: Reliability in delicate, high-precision tasks.
Why Choose a Rolled Ball Screw from Fangtooth?
Our R-Series rolled ball screws are engineered with performance and versatility in mind.
Here's why thousands of engineers and manufacturers rely on Fangtooth:
- High Lead Accuracy: Mid Level C7 grade precision with 0.052mm per 300mm.
- Internal Ball Recirculation Design: Ensures smoother motion, higher rotational speeds, and minimal backlash.
- Simplified Drop-In Installation: Each screw is pre-machined and optionally bundled with support bearings and mounting hardware.Customizable Configurations: Choose from a wide range of diameters (16 mm to 100 mm), leads (5 mm to 50 mm), and lengths up to 6,000 mm.Engineered for Speed & Life: With optimized design parameters, the R-Series supports high-speed linear travel and increased bearing life.
- Fangtooth Fast delivery program – Standard Lengths in Stock (2 day shipping), Custom Lengths (2 week shipping)
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Request a Custom Rolled Ball Screw or Talk to an Expert
Need help selecting the right screw diameter or nut configuration? Fangtooth’s engineering team is here to help.
Here's why thousands of engineers and manufacturers rely on Fangtooth:
- Request a Quote – Tell us what you need, and we’ll match you with the best solution.
- Talk to a Specialist – Not sure about specs or sizing? We’ll walk you through it.
- Full Assembly Options – Include mounting blocks, support bearings, and motor interfaces in one complete kit.
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Frequently Asked Questions
Explore answers to common questions about our custom linear motion systems.
What is a rolled ball screw?
A rolled ball screw is a machine that translates rotary motion into precise linear motion. A threaded shaft and a recirculating ball bearing nut are utilized, giving smooth, precise motion with little friction. It's a reliable option for a wide variety of automation systems.
How is a rolled ball screw different from a ground ball screw?
Rolled ball screws are made in an affordable rolling process, hence they are adequate for most industrial and automation applications. Ground ball screws are ground to very close tolerances and are typically utilized in ultra-high precision applications. In most applications, a rolled ball screw is more than adequate in terms of precision and longevity.
What level of precision do Fangtooth ball screws offer?
Our R-Series ball screws are available in C7 and C10 accuracy grades. C7 is ±0.05 mm per 300 mm of travel, and C10 is ±0.21 mm. These tolerances are suitable for most motion control applications where reliability and repeatability are critical.
Not sure what level of precision you need? Ask one of our engineers to help match the right grade to your application.
Where are rolled ball screws commonly used?
Our customers utilize rolled ball screws in CNC equipment, robots, material handling systems, medical equipment, and more. They are ideal for any use where constant, high-speed linear motion with long-term uniform performance is required.
Can I order a ball screw in a custom length or with specific end machining?
Yes. We offer full customization, including length (up to 6,000 mm) and end machining to suit your mounting or motor requirements. Provide us with your specs, and we’ll deliver a solution that fits. Ask one of our engineers to help match the right lenght to your application.
Do I need support bearings for my installation?
Support bearings are recommended for right loading and alignment. We have both floating and fixed bearing designs (BK/BF and FK/FF types) to ensure your setup remains stable, precise, and long-lasting.
Our engineers are happy to assist you if you are not certain what support bearings to use.
Will the screw come fully assembled, or do I need to put it together?
We can supply the ball screw as a standalone component or as a complete assembly, including the nut, support bearings, and optional motor mount. Many clients prefer the full assembly to save time and ensure correct alignment.
Let us know your preference, and we’ll recommend the best format for your build.
What kind of loads can your ball screws handle?
Our R-Series is designed for commercial application, with dynamic load capacities of as much as 18,700 lbs depending upon configuration. Should you require a custom load, we can help you determine the correct size and lead.
Inform us of your application details, and we will confirm which screw will accomplish the task.
How do I determine the correct lead for my application?
The lead determines how quickly the nut moves per revolution. More leads equal faster travel, while less leads equal more torque and less control. Our specialists can help you select the best option for your load, accuracy, and speed requirements.
Stumped about which option to take? Ask an engineer , we'll match the lead to your motion needs.
Are these ball screws suitable for use in vertical applications?
Yes. Fangtooth rolled ball screws can also be utilized in horizontal and vertical applications. If your application involves lifting or lowering loads, we will ensure the torque, support, and configuration meet your safety and performance needs.
