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SEB-A/AY TYPE
Standard Type
part number structure
example T1 -
SEBS:anticorrosion
size
SEBS 15A Y UU 2 589
N P / W2
symbol for
number of rails
blank single
rail
double
rails
triple
rails
block size
blank standard
Y long
W2
W3
accuracy grade
blank high
P precision
mounting hole rail
blank counter bore
N tapped hole
total length of rail
pre-load symbol
seal
T0 clearance
blank without seal
UU seals on both ends
blank standard
T1 light pre-load
number of blocks attached to one rail
Note: The symbol for the number of rails does not mean
the number of rails ordered.
standard
SEB 9A
SEB 9AY
SEB 12A
SEB 12AY
SEB 15A
SEB 15AY
SEB 20A
SEB 20AY
part number
anticorrosion
SEBS 2A
SEBS 3A
SEBS 3AY
SEBS 5A
SEBS 5AY
SEBS 7A
SEBS 7AY
SEBS 9A
SEBS 9AY
SEBS 12A
SEBS 12AY
SEBS 15A
SEBS 15AY
SEBS 20A
SEBS 20AY
assembly dimensions
H
mm
3.2
4
6
8
10
13
16
25
W
mm
2
2.5
3.5
5
5.5
7.5
8.5
13
B
mm
6
8
12
17
20
27
32
46
L1
mm
12.9
10.5
14.5
15.6
19.2
21.9
31
28.1
38.1
30
42
38.5
54.5
55.7
79.5
A-30
SEBS 2A/3A/3AY/5AY
L2
mm
14.3
11.8
15.8
17
20.6
24
33
29.5
40
33.5
45.5
42
58
61
85
block dimensions
part number
standard rail length
standard anticorrosion
L
mm
SEBS 2A 32 40 56 80 104
SEBS 3A 30 40 60 80 100
SEBS 5A 40 55 70 85 100 130 160
SEBS 7A 40 55 70 85 100 130 160 190 220 250 280 310
SEB 9A SEBS 9A 55 75 95 115 135 155 175 195 235 275 315 355
SEB 12A SEBS 12A 70 95 120 145 170 195 220 245 270 295 320 345
SEB 15A SEBS 15A 70 110 150 190 230 270 310 350 390 430 470 510
SEB 20A SEBS 20A 220 280 340 400 460 520 580 640 760 880 1,000
Joint rails are used when the required length exceeds the maximum standard length listed in the dimensional tables. Contact NB
for details.
Only N type rail is available for SEBS 2A and SEBS 3A.
P1
mm
8
12
15
20
25
38
P2
mm
4
3.5
5.5
7
8
13
10
16
15
20
20
25
38
S1
M1.4
M1.6
M2
M2
M2.6
M2
M3
M4
mm
1.05
1.3
1.5
1.8
2.5
3
3.5
4
6
SEBS 5A
L3
mm
9.3
6.5
10.5
9.8
13.4
15.1
24.6
20.4
30.4
23
34.7
29.5
45.4
45.7
69.5
b
mm
2.5
3
4.5
6.5
7.8
10
12
17.5