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BNK 0401
THK BNK Precision Ball Screws

   Material   

Nut hardness

Shaft hardness

SCM415

HRC22 - 34

Turning the face
HRC58 - 64
End of shaft end
HRC22 - 34
Video  3D view Specification of product PDF
  
BNK
 
 
 
 
 
 
 
      
※ Please refer to the specifications for details.
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How to order
 
 

    

  

  

      

       

     

        

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

4

1

3

G0

77~127

C3

Y

L-32

Right

4.15

1 turn
X
3 rows

Deflector

0

±0.008

0.008

0.98or less

0.29

0.42

0.01kg

0.07kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-


 

    

  

  

      

       

     

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

5

1

3

G0

77~127

C3

Y

L-32

Right

5.15

1 turn
X
3 rows

Deflector

0

±0.008

0.008

0.98or less

0.32

0.55

0.012kg

0.11kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-


 

   

  

  

      

       

      

         

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

6

1

3

G0

100~160

C3

Y

L-35

Right

6.2

1 turn
X
3 rows

Deflector

0

±0.008

0.008

1.3or less

0.54

0.94

0.017kg

0.14kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-


 

  

      

 

      

       

     

  

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

gasket

Clearance
symbol

L
Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No.
of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca
(Dynanic)

Ca
(Static state)

Screw

Shaft

8

1

3

-

G0

115~225

C3

Y

L-49

Right

8.2

1 turn
X
3 rows

Deflector

0

±0.008

0.008

1.8or less

0.64

1.4

0.024
kg

0.29
kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-

8

2

3

RR

G0

125~235

C3

Y

L-50

Right

8.3

1 turn
X
3 rows

Deflector

0

±0.008

0.008

2.0or less

1.4

2.3

0.034
kg

0.27
kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-

8

10

3

-

GT

205~405

C5

Y

L-51

Right

8.4

1.5turn
X
2rows

End cap ring

0.05or less

±0.023

0.018

-

2.16

3.82

0.049
kg

0.3
kg/m

G2

C7

0.02or less

±0.05/300mm


    

     

 

       

       

      

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

gasket

Clearance
symbol

L
Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No.
of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca
(Dynanic)

Ca
(Static state)

Screw

Shaft

10

2

3

RR

G0

143~293

C3

Y

L-58

Right

10.3

1 turn
X
3 rows

Deflector

0

±0.008

0.008

2.5or less

1.5

2.9

0.045kg

0.47
kg/m

C5

±0.018

0.018

G2

C7

0.02or less

±0.05/300mm

-

10

4

2.5

RR

G0

180~380

C3

Y

L-70

Right

10.5

2.5turn
X
1rows

Return pipe

0

±0.01

0.008

0.98~
4.9

2.1

2.7

0.15kg

0.32
kg/m

C5

±0.02

0.018

G2

C7

0.02or less

±0.05/300mm

-

3.4

5.4

10

10

1.5

RR

G0

240~440

C5

Y

L-70

Right

10.5

2.5turn
X
1rows

Return pipe

0

±0.02

0.018

0.98~
4.9

1.3

1.6

0.17kg

0.5
kg/m

G2

C7

0.02or less

±0.05/300mm

-

2.1

3.1

 

    

 

 

      

       

     

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

 

O.D.

Lead

No. of
loop

gasket

Clearance
symbol

L
Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No.
of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca
(Dynanic)

Ca
(Static state)

Screw

Shaft

 

12

2

3

RR

G0

154~354

C3

Y

L-69

Right

12.3

1 turn
X
3 rows

Deflector

0

±0.01

0.008

0.98~
3.4

1.7

3.6

0.05
kg

0.71
Kg/m

 

C5

±0.02

0.018

 

G2

C7

0.02or less

±0.05/300mm

-

 

12

5

2.5

RR

G0

180~380

C3

Y

L-70

Right

12.3

2.5turn
X
1rows

Return pipe

0

±0.012

0.008

0.98~
4.9

2.3

3.2

0.22
kg

0.61
kg/m

 

C5

±0.023

0.018

 

G2

C7

0.02or less

±0.05/300mm

-

3.7

6.4

 

12

8

2.6

RR

G2

180~380

C7

Y

L-70

Right

12.65

2.6turn
X
1rows

Return pipe

0.02or less

±0.05/300mm

-

4.7

7.5

0.269
kg

0.64
kg/m

 
 

     

  

 

      

       

     

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

gasket

Clearance
symbol

L
Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No.
of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca
(Dynanic)

Ca
(Static state)

Screw

Shaft

14

2

3

RR

G0

166~416

C3

Y

L-81

Right

14.3

1 turn
X
3 rows

Deflector

0

±0.01

0.008

0.49~
4.9

1.8

4.3

0.15
kg

1
Kg/m

C5

±0.02

0.018

G2

C7

0.02or less

±0.05/300mm

-

14

4

3

RR

G0

230~530

C3

Y

L-82

Right

14.65

1 turn
X
3 rows

Return pipe

0

±0.013

0.001

0.98~
6.9

4.2

7.6

0.13
kg

0.8
kg/m

C5

±0.025

0.02

G2

C7

0.02or less

±0.05/300mm

-

14

8

2.5

RR

G0

321~871

C5

Y

L-82

Right

14.75

2.5turn
X
1rows

Return pipe

0

±0.03

0.023

2~7.8

4.3

5.8

0.29
kg

0.84
kg/m

G2

C7

0.02or less

±0.05/300mm

-

6.9

11.5

 

     

      

  

               

       

      

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

15

10

5.6

G0

321~971

C5

Y

L-82

Right

15.75

2.8 turn
X
2rows

End cap ring

0

±0.035

0.025

2~9.8

9

14.3

0.22kg

0.76kg/m

G2

C7

0.02or less

±0.05/300mm

-

13.9

27.9

15

20

3

G0

321~971

C5

Y

L-85

Right

15.75

1.5 turn
X
2rows

End cap ring

0

±0.035

0.025

2~8.8

5.1

7.9

0.32kg

1.05kg/m

G2

C7

0.02or less

±0.05/300mm

-

8

15.8

 

 

     

      

      

       

     

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

16

16

3.6

G0

321~971

C5

Y

L-87

Right

16.65

1.8 turn
X
2rows

End cap ring

0

±0.035

0.025

2~9.8

4.4

7.2

0.2kg

1.25kg/m

G2

C7

0.02or less

±0.05/300mm

-

7.1

14.3


   

     

      

 

     

       

     

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

gasket

Clearance
symbol

L
Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No.
of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca
(Dynanic)

Ca
(Static state)

Screw

Shaft

20

10

2.5

RR

G0

400~1299

C5

Y

L-110

Right

21

2.5turn
X
1rows

Return pipe

0

±0.04

0.027

2~9.8

7

11.1

0.58
kg

1.81
Kg/m

G2

C7

0.02or less

±0.05/300mm

-

11

22

20

20

3.6

-

G0

520~1320

C5

Y

L-110

Right

20.75

1.8turn
X
2rows

End cap ring

0

±0.04

0.027

2~9.8

7

11.1

0.39
kg

2.04
kg/m

G2

C7

0.02or less

±0.05/300mm

-

12.3

24.7


     

     

      

              

       

      

   

 

 

 

 

 

 

 

 

 

 

 

 

Unit:mm

O.D.

Lead

No. of
loop

Clearance
symbol

L Designated
units 1mm

Accuracy

Shaft end
Finish

S Thread length

Threading
direction

Ball
diameter

No. of
circuits

Circulation
method

Axial
clearance

Lead accuracy  (um)

Preload torque
N
m

Basic load rating/kN

Mass

±Ec

(e)

Ca(Dynanic)

Ca(Static state)

Screw

Shaft

25

20

3.6

G0

751~1851

C5

Y

L-141

Right

26

1.8 turn
X
2 rows

End cap ring

0

±0.054

0.035

4.9~22

10.5

19

0.53kg

3.03kg/m

G2

C7

0.02or less

±0.05/300mm

-

16.7

38