FB Series Standard Dimensions

               EF Type(preloaded with oversized balls) with both side notched flange


               - Click the model to download CAD data (DXF) -



Lead


L

Model

No.

Screw

O.D.


d0

Root

dia


dr

Ball

dia


Dw

B.C.D.



Dpw

Effective

Turns


m

Basic Rated

Load(Dynamic)

(N)

Ca

Basic Rated

Load(Static)

(N)

C0

Stiffness


(N/μm)

K


Nut Dimension


D1
D2
L
K
F
P
J
A
Z
6
8
6.6
1.588
8.3
2.7×2
3200
5390
160
18
31
24
5
9
25
3.4
18
12
8
6.6
1.588
8.3
1.7×2
2200
3300
100
18
31
27
5
9
25
3.4
18
25
25
21.9
3.969
26.0
1.7×2
14500
32900
500
47
74
81
11
12
60
6.6
49
M6×1
30
15
12.5
3.175
15.8
0.7×2
3900
6360
140
32
53
34
6
10
43
5.5
33
M6×1
32
16
13.7
2.778
16.6
0.7×4
5800
10800
280
35
56
37
9
10
44
4.5
38
M6×1
32
32
28.4
4.763
33.3
1.7×2
20500
49900
620
58
92
76
16
15
74
9.0
68
M6×1
40
20
17.5
3.175
20.8
0.7×4
8370
17300
360
40
62
45
10
10
50
5.5
44
M6×1
50
50
44.0
7.938
52.2
1.7×2
50600
131000
950
90
135
118
25
22
112
14
100
PT1/8
60
20
17.5
3.175
20.8
0.7×4
7480
19400
370
37
57
54
8
10
47
5.5
38
M6×1

Note 1:The stiffness in the catalog means theoretical erastic deformation of balls where three times of preload is supplied to axial direction in case

the preload is 5% of rated static load capacity(Ca).Stiffness of the ball nut is to be approx.80% of this load.




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