Model BIF-V SERIES

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.

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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
BIF 5020V-5 Ball Screw
50
20
52.7
105
152
201
72.5
183.6
BIF 5016V-10 Ball Screw
50
16
52.7
105
152
260
131.8
366.2
BIF 5016V-5 Ball Screw
50
16
52.7
105
152
164
72.6
183.1
BIF 5012V-10 Ball Screw
50
12
52.25
100
146
195
78.8
220.2
BIF 5012V-7 Ball Screw
50
12
52.25
100
146
147
58
154.1
BIF 5012V-5 Ball Screw
50
12
52.25
100
146
123
43.4
110.1
BIF 5010V-10 Ball Screw
50
10
51.75
93
135
163
58.2
176.3
BIF 4012V-10 Ball Screw
40
12
42
84
126
191
61.6
158.3
BIF 4020V-5 Ball Screw
40
20
41.75
82
126
162
28.9
71
BIF 4012V-7 Ball Screw
40
12
42
84
126
143
45.3
110.8
BIF 4012V-5 Ball Screw
40
12
42
84
126
119
33.9
79.2
BIF 4010V-10 Ball Screw
40
10
41.75
82
124
163
52.7
140.7
BIF 4010V-7 Ball Screw
40
10
41.75
82
124
123
38.8
98.5
BIF 4010V-5 Ball Screw
40
10
41.75
82
124
103
29
70.4
BIF 3620V-3 Ball Screw
36
20
37.75
75
114
122
17.7
38.4
BIF 3616V-5 Ball Screw
36
16
38
78
123
140
32.1
71.5
BIF 3612V-10 Ball Screw
36
12
38
78
123
195
58.4
142.3
BIF 3612V-7 Ball Screw
36
12
38
78
123
140
43
99.6
BIF 4016V-5 Ball Screw
40
16
42
84
126
144
33.9
79.4
BIF 4510V-5 Ball Screw
45
10
46.75
88
132
111
30.6
79.3
BIF 4510V-10 Ball Screw
45
10
46.75
88
132
171
55.6
158.5
BIF 4512V-5 Ball Screw
45
12
47
90
130
119
35.9
89.2
BIF 4512V-10 Ball Screw
45
12
47
90
130
191
65.2
178.3
BIF 4516V-5 Ball Screw
45
16
47
90
130
140
35.8
89.4