Linear Motion Ball Screw

The Linear Motion Ball Screw achieves sub-micron positioning accuracy through precision-ground shafts and optimized ball nut geometry. Its low backlash mechanism ensures consistent repeatability by minimizing clearance between balls and raceways. This precise motion control is critical for applications requiring exact linear displacement over extended operational periods. 

Nominal Diameter

6–80 mm (±0.01 mm), Common Sizes – 16 mm, 25 mm, 32 mm

Lead (Pitch)

2–20 mm (±0.005 mm), High-Lead Options – 32–50 mm (for high-speed applications)

Accuracy Grade

C3 (Standard), C5 (High Precision – ±0.05 mm/300 mm), C7 (Ultra-Precision – ±0.018 mm/300 mm)

Nut Type

Flanged (Square/Round), Cylindrical, or Custom (with Keyways/Spline)

Shaft End Machining

Turned/Ground Ends (h6 Tolerance), Keyway/Spline Options, Threaded Ends (M10–M30)

Product Description

Linear Motion Ball Screws utilize rolling elements to convert rotational motion to linear travel, drastically lowering friction coefficients compared to sliding contact mechanisms. This reduction in friction decreases torque demand on the drive motor and improves overall system efficiency. Lower energy consumption also reduces heat generation, preserving dimensional stability of critical components. 

Preload

Zero (P0), Light (P1 – 1–3% of Dynamic Load), Medium (P2 – 3–5%), Heavy (P3 – 5–7%)

Material

Screw – SCM440/SCr420 (Hardened to 58–62 HRC), Nut – Carbon Steel (55+ HRC) or Stainless Steel

Length

Overall – 500–6000 mm (±1 mm), Threaded – Custom (up to 98% of overall length)

Dynamic Load Capacity (Ca)

2–50 kN (e.g., 16mm Dia – ~5 kN, 32mm Dia – ~20 kN)

Certification Standard

ISO 3408 (Ball Screw Standards), JIS B 1192, DIN 69051, ISO 9001

Technical Advantages

The Linear Motion Ball Screw’s hardened steel shaft and wear-resistant ball bearings are engineered to withstand high axial loads while maintaining preload integrity. Optimized ball recirculation paths reduce stress concentrations, preventing premature fatigue and pitch error development. This design extends operational life, even under continuous heavy-duty conditions. 

Linear Motion Ball Screws provide uniform load distribution through multiple rolling elements, significantly dampening vibrations transmitted to the system. The consistent ball-to-raceway contact reduces mechanical noise and prevents stick-slip behavior, which is essential for precision machining and sensitive measurement equipment. 

 

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Industry Applications

Semiconductor Manufacturing Equipment

Provides clean, ultra-precise linear positioning in wafer steppers and photolithography stages under controlled, low-particulate environments. 

Medical Imaging Systems

Enables smooth, low-vibration motion in MRI and CT scanner gantries where positional repeatability and minimal electromagnetic interference are critical. 

Aerospace Flight Simulators

Delivers high-load axial motion with minimal backlash in electromechanical actuators for pitch, roll, and yaw axis simulation systems. 

Automated Optical Inspection (AOI)

Facilitates sub-micron stage movements in inspection systems requiring high repeatability and low-friction travel across planar imaging fields. 

Packaging and Labeling Machinery

Supports rapid linear actuation with high duty cycles in precision filling, cutting, sealing, and labeling processes across production lines. 

3D Printing and Additive Manufacturing

Maintains precise layer positioning with smooth axis movement to ensure dimensional accuracy and surface finish in high-resolution build processes. 

 

Enhanced Load Capacity and Rigidity

The Linear Motion Ball Screw’s architecture allows multiple balls to share the load simultaneously, increasing static and dynamic load ratings. This multi-contact load transfer enhances system rigidity and stiffness, enabling stable performance under high dynamic forces and rapid acceleration profiles common in industrial automation. 

Linear Motion Ball Screws with sealed or shielded designs effectively prevent particulate contamination, extending lubrication intervals and reducing wear. Their dimensional standards and mounting options facilitate straightforward integration with various motor types and control systems, minimizing engineering complexity and downtime during installation. 

Linear Motion Ball Screw

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure the precision of its Linear Motion Ball Screws?

Frigate uses precision grinding machines to achieve tight thread tolerances on ball screw shafts. Each ball nut is matched to its screw to minimize backlash and maximize repeatability. Rigorous quality control verifies lead accuracy and surface finish before delivery. This process ensures consistent micron-level positioning for demanding applications. 

What materials does Frigate use for manufacturing Linear Motion Ball Screws, and why?

Frigate primarily uses hardened alloy steels with case hardening to enhance wear resistance and fatigue strength. These materials maintain structural integrity under high axial loads and repetitive motion cycles. Surface treatments like nitriding improve corrosion resistance without affecting hardness. Material selection balances durability, stiffness, and operational lifespan. 

How does Frigate address preload adjustment in its Linear Motion Ball Screws?

Frigate provides ball screws with adjustable preload options tailored to application requirements. Preloading eliminates backlash and increases system rigidity by controlling internal clearance. Precision assembly techniques maintain uniform load distribution across the ball bearings. This enhances positioning accuracy and reduces vibration during operation. 

What lubrication practices does Frigate recommend for its Linear Motion Ball Screws?

Frigate advises using high-quality grease or oil lubricants compatible with the screw’s operating environment. Proper lubrication reduces friction, wear, and heat generation within the ball recirculation system. Automated lubrication systems can be integrated for continuous maintenance in high-cycle applications. Regular lubrication intervals are critical to sustaining performance and extending service life. 

How does Frigate customize Linear Motion Ball Screws for integration with motor systems?

Frigate offers custom shaft end machining and flange designs to match various motor mounting standards. This allows direct coupling with servo or stepper motors for compact assembly. Precision concentricity and runout control are maintained during manufacturing to avoid misalignment. Customization supports seamless integration into automated motion platforms.

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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Linear Motion Ball Screw

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