FYB Series
Ball Screws — High-Speed, Large Lead
Large-lead ball screw engineered for maximum traverse speeds. Up to 40mm advance per revolution reduces required motor RPM while maintaining aggressive cycle times.
FYB Series / Ball Screws — High-Speed, Large Lead
The FYB Series is Luoyang Songju's large-lead, high-speed ball screw, engineered for applications where rapid traverse speeds and high acceleration rates are the primary performance criteria. With lead values ranging from 16mm to 40mm -- significantly larger than standard ball screws -- the FYB converts high-speed rotary input into exceptionally fast linear motion. Each revolution of the screw advances the nut by up to 40mm, enabling traverse speeds that would be impossible with conventional lead designs.
Available in C3 (ground) and C3 (ground) accuracy grades with screw diameters from 25mm to 80mm, FYB ball screws are purpose-built for high-speed pick-and-place automation, automated warehouse retrieval systems, high-dynamic packaging machinery, and any application where cycle time is directly driven by linear traverse speed. The large-lead design reduces the required motor speed for a given linear velocity, enabling the use of lower-cost, lower-speed servo motors while maintaining aggressive cycle times. Optimized ball return geometry ensures smooth ball recirculation even at the high rotary speeds these large-lead screws demand.
Download Drawing Get a QuoteDetailed Parameters
| Series | FYB (Large Lead, High-Speed) |
| Nut Type | Single nut, optimized for high-speed ball return |
| Ball Return | High-speed optimized recirculation circuit |
| Accuracy Grades | C2 (ground), C3 (ground) |
| Screw Diameter | 25mm, 32mm, 40mm, 50mm, 63mm, 80mm |
| Lead Range | 16mm, 20mm, 25mm, 32mm, 40mm |
| Key Advantage | High linear speed per revolution |
| Screw Material | Gcr15 bearing steel |
| Screw Hardness | 58–62 HRC |
| Max DN Value | 110,000 |
| Max Linear Speed | Up to 120 m/min (depending on screw diameter and lead) |
| Max Screw Length | 5000mm |
| Operating Temperature | -20°C to +80°C |
| Lubrication | Grease nipple |
| Seal Type | Wiper seals |
| Application | High-Speed Pick-and-Place, Automated Warehouses, High-Dynamic Packaging, Fast Traverse Axes |
Available Options & Customizations
- Custom lead values
- FCZ-style flange
- Ceramic balls for higher speed
- Reinforced ball return for maximum RPM
- Integrated encoder ring
Why Choose FYB Series Ball Screws
The FYB Series is purpose-built for applications where speed defines productivity. Its large-lead design converts modest motor RPM into blazing-fast linear motion.
Fast Traverse Speeds
With leads up to 40mm, the FYB achieves linear traverse speeds of up to 120 m/min, dramatically reducing cycle times in automation and material handling applications.
Large Lead Design
Each revolution advances the nut by 16 to 40mm -- 2 to 4 times more than standard ball screws -- converting rotary input into exceptionally fast linear travel.
Lower Motor RPM
The large lead reduces the required motor speed for any given linear velocity, enabling the use of lower-cost servo motors without sacrificing throughput performance.
Optimized Ball Return
Purpose-designed recirculation geometry ensures smooth, jam-free ball circulation even at the elevated rotary speeds required by high-dynamic motion profiles.
High Acceleration
Low rotational inertia combined with efficient ball recirculation enables rapid acceleration and deceleration, critical for pick-and-place and packaging cycle optimization.
Cycle Time Reduction
By slashing traverse time, FYB ball screws directly increase production throughput in automated warehouses, packaging lines, and material handling systems.
Need High-Speed Ball Screws?
Tell us your target traverse speed, stroke length, and acceleration requirements. Our engineers will specify the optimal FYB large-lead ball screw with complete speed/load analysis and competitive pricing. 24-hour response guaranteed.