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Σπίτι > προϊόντα > Μηχανική μετάδοση > Original THK Precision Ball Screw BNK/BNT Series for Robot Linear Actuators
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Επαφές: Mr. Angelo Wu
Fax: 86-21-68060766
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Original THK Precision Ball Screw BNK/BNT Series for Robot Linear Actuators

Λεπτομέρειες προϊόντος

Τόπος καταγωγής: ΙΑΠΩΝΙΑ

Πιστοποίηση: ISO、RoHS、Japan Machine Tool Builders' Association

Όροι πληρωμής και αποστολής

Ποσότητα παραγγελίας min: 1

Τιμή: $150.00 - $1200.00

Συσκευασία λεπτομέρειες: Πρωτότυπο

Χρόνος παράδοσης: 3-5 Εργάσιμες

Όροι πληρωμής: L/C,D/A,D/P,T/T,Western Union

Συνομιλία τώρα
Επισημαίνω:

THK precision ball screw BNK series

,

BNT series ball screw for linear actuators

,

robot actuator ball screw with warranty

Βαθμός Ακρίβειας:
C3 / C5 / C7 (αλεσμένο ή ρολό)
Τύπος καρυδιών:
Μονό παξιμάδι / Διπλό παξιμάδι (προφορτωμένο)
Διάμετρος άξονα:
4mm - 100mm (Υποστήριξη ευρείας εμβέλειας)
Αξονικό παιχνίδι:
Μηδενική αντίδραση (μέσω προφόρτωσης)
Τελική Μηχανική:
Προσαρμοσμένη κατεργασία ανά σχέδιο
Προέλευση εμπορικών σημάτων:
Ιαπωνία (100% γνήσιο)
Όρος αποστολής:
International Express (DHL/FEDEX/TNT/UPS/ARAMEX)/θαλάσσια εμπορεύματα / αεροπορικά φορτία / διεθνής
Χρέωση φορτίου:
Για βιομηχανικό εξοπλισμό (π.χ. μονάδες PLC, μετατροπείς...), το κόστος αποστολής ποικίλλει ανάλογα
Βαθμός Ακρίβειας:
C3 / C5 / C7 (αλεσμένο ή ρολό)
Τύπος καρυδιών:
Μονό παξιμάδι / Διπλό παξιμάδι (προφορτωμένο)
Διάμετρος άξονα:
4mm - 100mm (Υποστήριξη ευρείας εμβέλειας)
Αξονικό παιχνίδι:
Μηδενική αντίδραση (μέσω προφόρτωσης)
Τελική Μηχανική:
Προσαρμοσμένη κατεργασία ανά σχέδιο
Προέλευση εμπορικών σημάτων:
Ιαπωνία (100% γνήσιο)
Όρος αποστολής:
International Express (DHL/FEDEX/TNT/UPS/ARAMEX)/θαλάσσια εμπορεύματα / αεροπορικά φορτία / διεθνής
Χρέωση φορτίου:
Για βιομηχανικό εξοπλισμό (π.χ. μονάδες PLC, μετατροπείς...), το κόστος αποστολής ποικίλλει ανάλογα
Original THK Precision Ball Screw BNK/BNT Series for Robot Linear Actuators
Original THK Precision Ball Screw BNK/BNT Series for Robot Linear Actuators
As the global pioneer of Linear Motion (LM) systems, THK's precision ball screws are the premier choice for achieving high-efficiency, high-frequency linear reciprocating motion. By integrating precision steel balls between the screw and the nut, THK converts sliding friction into rolling friction, reducing resistance to just 1/50th of conventional screws. Known for their superior positioning accuracy, extreme service life, and micrometer-level smoothness, THK ball screws are indispensable components for humanoid robot linear actuators, precision CNC machinery, and semiconductor manufacturing equipment.
Product Highlights
  • Extreme Transmission Efficiency: Minimal friction loss results in mechanical efficiency exceeding 90%, significantly lowering the power requirements for drive motors.
  • Micrometer Positioning Accuracy: Manufactured using ultra-precision grinding processes in Japan, ensuring high axial positioning accuracy even during high-speed operation.
  • Superior Rigidity & Preload Technology: Unique preload adjustments eliminate axial play, providing exceptional transmission rigidity and vibration-free performance.
  • Exceptional Service Life: Crafted from high-quality alloy steel with specialized induction hardening to ensure minimal wear under long-term, high-load operations.
  • Low Noise & Smoothness: Optimized ball circulation circuit design ensures quiet and smooth movement, even with large-lead screws at high speeds.
  • Micro-Design Advantage: Offers miniature series with diameters as small as 4mm, ideal for dexterous humanoid hands and micro-actuators.
Core Parameter Table (Precision Ground Series)
Model (Series) Shaft Dia (mm) Lead (mm) Accuracy Grade Dynamic Load (kN) Max Length (mm)
BNK-080282C3 / C52.1300
BNK-1205125C3 / C54.6600
SDM-15101510C5 / C76.81000
BIF-2005205C3 / C511.21500
BLK-25252525C5 / C714.52000
Application Fields
  • Humanoid Robots: Linear actuators for legs (push-rods), waist support mechanisms, and arm extension devices.
  • Semiconductor Equipment: Wafer dicing machines, precision dispensers, and AOI inspection stages.
  • Precision CNC Machines: Small machining centers, CNC grinders, and precision engravers.
  • Medical Automation: Automated analyzers, surgical bed adjustments, and laboratory liquid handling.
  • Factory Automation (FA): High-speed Pick & Place robots and integrated electric cylinders.
Frequently Asked Questions
Q: How do you guarantee that THK screws are 100% original Japan-made?
A: We guarantee all THK products are sourced directly from THK Japan or their official global authorized distributors. Each unit includes original markings and anti-counterfeit packaging.
Q: What is the difference between Ground and Rolled screws?
A: Ground screws offer higher precision (C0-C5) for high-accuracy positioning, while Rolled screws (C7-C10) are cost-effective for general transport. C5 or higher ground screws are recommended for robot joints.
Q: Do you offer end machining for the screws?
A: Yes, we provide customized end-machining services based on your drawings, including support-bearing seats, keyways, and threads for immediate installation.
Q: How do I determine the best lead size for my application?
A: Lead determines the relationship between motor speed and linear velocity. Large leads (e.g., 10mm or 20mm) are for high speed; small leads (e.g., 2mm) provide higher thrust and resolution.
Q: Are the screws lubricated upon delivery?
A: THK screws are typically shipped with anti-rust oil. Before use, apply the appropriate amount of THK original grease (e.g., AFA, AFB-LF) according to the manual.
Q: What is the difference between Planetary Screws and Ball Screws?
A: Planetary screws handle extremely high loads for heavy tonnage but are very costly. Ball screws are the optimal balance of cost and precision for typical robotic thrust requirements.
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