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Screw shaft outer diameterd
LeadPh
Model No.
Ball center-to-center diameterdp
Thread minor diameterdc
No. of loaded circuitsRows × turns
Basic load rating
RigidityK
Nut dimensions
Axial clearance
Screw shaft inertial moment/mm
Nut mass
DynamicCa
StaticC0 a
Outer diameterD
Flange diameterD0
Overall lengthL1
H
B1
PCD
d1
Tw
Greasing hole
SealM1
N1
A
mm
mm
mm
mm
kN
kN
N/µm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg•cm2 /mm
kg
15
20
WTF1520‑3
15.75
12.5
2×1.5
5.5
14.2
140
32
53
45
10
28
43
5.5
33
5
M6×1
3.5
0.1
3.9 × 10-4
0.2
15
20
WTF1520‑6
15.75
12.5
4×1.5
10.1
28.5
280
32
53
45
10
28
43
5.5
33
5
M6×1
3.5
0.1
3.9 × 10-4
0.2
15
30
WTF1530‑2
15.75
12.5
4×0.6
4.3
9.3
120
32
53
33
10
17
43
5.5
33
5
M6×1
3.5
0.1
3.9 × 10-4
0.22
20
40
WTF2040‑2
20.75
17.5
4×0.65
5.4
13.6
160
37
57
41.5
10
25.5
47
5.5
38
5.5
M6×1
3.5
0.1
1.23 × 10-3
0.25
20
40
WTF2040‑3
20.75
17.5
2×1.65
6.6
17.2
200
37
57
81.5
10
65.5
47
5.5
38
5.5
M6×1
3.5
0.1
1.23 × 10-3
0.5
25
50
WTF2550‑2
26
21.9
4×0.65
8.5
21.2
200
45
69
52
12
31.5
57
6.6
46
7
M6×1
3.5
0.1
3.01 × 10-3
0.45
25
50
WTF2550‑3
26
21.9
2×1.65
10.4
26.9
260
45
69
102
12
81.5
57
6.6
46
7
M6×1
3.5
0.1
3.01 × 10-3
0.85
30
60
WTF3060‑2
31.25
26.4
4×0.65
11.8
30.6
240
55
89
62.5
15
37.5
71
9
56
9
M6×1
3.8
0.14
6.24 × 10-3
0.8
30
60
WTF3060‑3
31.25
26.4
2×1.65
14.5
38.9
310
55
89
122.5
15
97.5
71
9
56
9
M6×1
3.8
0.14
6.24 × 10-3
1.7
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
Model
Screw shaft outer diameter*1
Lead*1
Circuits
Seals
WTF
15
20
-
3
ZZ
NUT
WTF
15~30
20~60
Various
ZZ : Brush seals
Note 1: See the Specifications tab to see standard sizes available.The above selections are Online Store standards. If you need a selection that differs from the standard, please contact us at [email protected]