THK’s Ball Screw Transport Ball Screw Model JPF SERIES represents a specialized class of linear motion components engineered for the precise and efficient transfer of materials and components in automated systems. These ball screws are designed to convert rotational motion into smooth, highly accurate linear travel, making them indispensable in applications demanding repeatability, high load capacity, and sustained operational reliability. The JPF SERIES is characterized by its robust construction and advanced engineering, tailored to meet the rigorous demands of modern industrial automation, automotive manufacturing, and precision instrumentation.
Key technical features of the JPF SERIES include a precision-ground screw shaft with optimized lead accuracy, ensuring minimal deviation during linear travel. The series incorporates a high-capacity, recirculating ball nut design that minimizes friction and distributes loads evenly across multiple contact points, significantly enhancing service life and reducing maintenance requirements. Many models within this series are available with pre-loaded ball nuts to eliminate backlash, providing exceptional positional accuracy critical for precision tasks. The screw shafts are typically manufactured from high-carbon chromium bearing steel, heat-treated to achieve superior surface hardness and wear resistance. Furthermore, select JPF models may feature integrated seals and wipers to protect the ball recirculation path from contaminants like dust, chips, and moisture, ensuring consistent performance even in challenging environments.
The performance advantages of the JPF SERIES are substantial. Its high mechanical efficiency, often exceeding 90%, allows for the use of smaller, more energy-efficient drive motors, reducing overall system power consumption and operational costs. The low friction characteristics contribute to smooth, quiet operation with minimal heat generation, which is vital for maintaining precision over extended duty cycles. The design’s high rigidity and load capacity—supporting both axial and moment loads—enable it to handle significant forces without deflection, ensuring stability and accuracy even under dynamic conditions. This reliability translates into reduced downtime and lower total cost of ownership for end-users.
Typical applications for the THK JPF SERIES are found across a broad industrial spectrum. In industrial machinery, these ball screws are integral to automated assembly lines, material handling systems, and CNC machine tools, where they facilitate precise positioning of workpieces, tools, and robotic arms. Within the automotive sector, they are employed in welding robots, precision press feeds, and automated guided vehicles (AGVs) for component transfer and assembly processes. In the realm of precision equipment, the JPF SERIES is utilized in semiconductor manufacturing apparatus, medical device automation, and optical alignment systems, where micron-level accuracy and flawless repeatability are non-negotiable. Its versatility and durability make it a cornerstone component for engineers designing systems that require dependable, high-precision linear motion.
| Model No. | Screw shaft outer diameter d |
Lead Ph |
Ball center-to- center diameter dp |
Outer diameter D g6 |
Flange diameter D1 |
Overall length L1 |
Basic load rating | |
| Dynamic rating Ca |
Static rating C0a |
|||||||
| mm | mm | mm | mm | mm | mm | kN | kN | |
14 |
4 |
14.4 |
26 |
46 |
52 |
2.8 |
5.1 |
|
14 |
5 |
14.5 |
26 |
46 |
60 |
3.9 |
8.6 |
|
16 |
5 |
16.75 |
30 |
49 |
60 |
3.7 |
8.2 |
|
20 |
5 |
20.5 |
34 |
57 |
80 |
6 |
16 |
|
25 |
5 |
25.5 |
40 |
66 |
80 |
6.9 |
20.8 |
|
25 |
10 |
26.8 |
47 |
72 |
112 |
11.4 |
24.5 |
|
28 |
5 |
28.75 |
43 |
69 |
80 |
7.3 |
23.9 |
|
28 |
6 |
28.5 |
43 |
69 |
90 |
7.3 |
23.9 |
|
32 |
10 |
33.75 |
54 |
88 |
135 |
19.3 |
49.9 |
|
36 |
10 |
37 |
58 |
98 |
138 |
20.6 |
56.2 |
|
40 |
10 |
41.75 |
62 |
104 |
138 |
22.2 |
65.3 |
|