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Support Unit model No.
Ball Screw shaft OD
Shaft Support Portion OD
 
 
 
Metric screw thread
BK (Type BK)
d
A
B
E
F
M
S
BK 10
14/15
10
8
39
15
M10×1
16
BK 12
16/18
12
10
39
15
M12×1
14
BK 15
20
15
12
40
20
M15×1
12
BK 17
25
17
15
53
23
M17×1
17
BK 20
28/30/32
20
17
53
25
M20×1
15
BK 25
36
25
20
65
30
M25×1.5
18
BK 30
40
30
25
72
38
M30×1.5
25
BK 35
45
35
30
83
45
M35×1.5
28
BK 40
50/55
40
35
98
50
M40×1.5
35
 
Support Unit model No.

Ball Screew shaft OD
Shaft Support Portion OD
 
 
 
Metric screw thread
Type FK Type EK
d
A
B
E
F
M
S
FK 6 EK 6
8
6
4
30
8
M6×0.75
8
FK 8 EK 8
12
8
6
35
9
M8×1
10
FK 10 EK 10
14/15
10
8
36
15
M10×1
11
FK 12 EK 12
16/18
12
10
36
15
M12×1
11
FK 15 EK 15
20/25
15
12
49
20
M15×1
13
FK 20 EK 20
28/30/32
20
17
64
25
M20×1
17
FK 25 -
36
25
20
76
30
M25×1.5
20
FK 30 -
40
30
25
72
38
M30×1.5
25
 

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