THK’s BIF V SERIES Caged Ball Screw represents a significant advancement in precision linear motion technology, engineered specifically for applications demanding exceptional accuracy, rigidity, and long-term reliability. This model incorporates a unique caged ball design that fundamentally enhances performance by separating individual recirculating balls within a dedicated retainer. This construction eliminates ball-to-ball contact, drastically reducing friction, heat generation, and torque fluctuation. The result is a smoother, quieter, and more efficient operation compared to conventional ball screws, with a marked improvement in positional stability and consistency.
Key technical features of the BIF V SERIES underscore its high-performance capabilities. The caged ball mechanism not only minimizes vibration and noise but also substantially extends the component’s service life by preventing abrasive wear between the balls. This design allows for higher maximum operating speeds and faster accelerations, making it ideal for dynamic, high-cycle processes. Furthermore, the series is manufactured to exacting precision grades, ensuring minimal axial play and highly repeatable positioning. The robust construction provides superior rigidity and load capacity, capable of handling significant moment loads in multiple directions. Many models are also available with optional pre-load adjustments and various sealing solutions to exclude contaminants, ensuring reliable performance even in harsh industrial environments.
The performance advantages translate directly into tangible benefits for demanding sectors. In industrial machinery, the BIF V SERIES is indispensable for high-speed machining centers, CNC lathes, and industrial robots where precision, speed, and minimal downtime are critical. Its ability to maintain accuracy over millions of cycles enhances manufacturing quality and throughput. Within automotive production systems, these ball screws are deployed in precision assembly robots, automated welding equipment, and high-speed transfer lines, where their durability and resistance to shock loads ensure uninterrupted production. In the realm of precision equipment, the BIF V SERIES is the driving component of choice for semiconductor manufacturing apparatus, precision measuring instruments, and medical device automation. The exceptional smoothness and minimal vibration are paramount for achieving the micron-level accuracies required in these sensitive applications. By delivering a combination of high speed, unparalleled precision, and exceptional longevity, the THK BIF V SERIES Caged Ball Screw provides a foundational technology that boosts productivity, enhances product quality, and reduces total cost of ownership across a wide spectrum of advanced automation.
| 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 | |
20 |
4 |
20.5 |
40 |
63 |
49 |
4.8 |
10.9 |
|
20 |
4 |
20.5 |
40 |
63 |
73 |
8.6 |
21.8 |
|
20 |
5 |
20.75 |
44 |
67 |
56 |
8.3 |
17.5 |
|
20 |
5 |
20.75 |
44 |
67 |
86 |
15.1 |
35 |
|
20 |
10 |
20.75 |
46 |
74 |
90 |
8.3 |
17.6 |
|
25 |
4 |
25.5 |
46 |
69 |
48 |
5.2 |
13.7 |
|
25 |
4 |
25.5 |
46 |
69 |
72 |
9.5 |
27.4 |
|
25 |
5 |
25.75 |
50 |
73 |
55 |
9.2 |
21.9 |
|
25 |
5 |
25.75 |
50 |
73 |
85 |
16.7 |
43.9 |
|
25 |
6 |
26 |
53 |
76 |
62 |
12.4 |
27.4 |
|
25 |
6 |
26 |
53 |
76 |
98 |
22.6 |
54.8 |
|
28 |
5 |
28.75 |
55 |
85 |
59 |
9.7 |
24.6 |
|
28 |
5 |
28.75 |
55 |
85 |
89 |
17.5 |
49.2 |
|
28 |
6 |
28.75 |
55 |
85 |
68 |
9.6 |
24.6 |
|
16 |
4 |
16.5 |
36 |
59 |
53 |
4.3 |
8.7 |
|