New products are available now. These products are compatible with Ferrotec’s seals. Click on the following Cross Reference Sheet.

Cantilever Series F1T-***-C***

This is based on the F1T type, with the magnetic fluid arranged in the vacuum side. This is suitable for active gas applications.

Explanation of the model designation
See the detailed explanation here
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Product Specification

F1T-020-C F1T-025-C F1T-030-C F1T-040-C F1T-050-C F1T-075-C
Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry
A [mm] 20H7+0.021
0
25H7+0.021
0
30H7+0.021
0
40H7+0.025
0
50H7+0.025
0
75H7+0.030
0
B [mm] 116 118 134 65 65 74
D[mm] 114 116 132 63 63 72
E [mm] 99f7-0.036
-0.071
109f7-0.036
-0.071
114f7-0.036
-0.071
128f7-0.043
-0.083
138f7-0.043
-0.083
179f7-0.043
-0.083
F [mm] 10 10 12 10 10 12
H [mm] 64 74 80 92 102 143
J 6-Φ9PCD82 6-Φ9PCD92 6-Φ9PCD98 8-Φ9PCD110 8-Φ9PCD120 8-Φ9PCD161
O (O-ring used) G60 G65 G70 G85 G95 G135
O2 (O-ring used) S20 S25 S30 S40 S50 S75
P [mm] 30 35 40 50 60 90
Q1 [mm] 10 10 10 10 10 13
Q2 [mm] 12 12 13 12 12 16
Water cooling option 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8
G [mm] 11 11 11 12 12 11
Shaft option1 Clamp Clamp Clamp Clamp Clamp Clamp
W [mm] 13 15 15 15 15 19
X [mm] 45 57 61 73 83 109
Y (hexagon socket head bolt) M4×10 M6×12 M6×12 M6×16 M6×16 M8×20
Max. rotation rate [rpm] (*1) (*2)
(with water cooling)
1900
(6500)
1600
(5500)
1400
(5000)
1100 1000 600
Rated rotation rate [rpm] (*1) (*3)
(with water cooling)
1900 1600 1400 1100 1000 600
Allowable axial load [N] (*4) 78 120 120 835 900 1500
Allowable radial load [N] (*5) 391 496 562 835 900 1500
Mass [kg] 2.8 3.7 4.8 3.1 3.6 7.4
Starting torque [N∙m] (*1) (*6) 0.33 0.44 0.57 2.4 3.0 6.6
Recommended shaft diameter [mm]
(*4)
20f7-0.020
-0.041
25f7-0.020
-0.041
30f7-0.020
-0.041
40f7-0.025
-0.050
50f7-0.025
-0.050
75f6-0.030
-0.049
  • (*1): This is the numerical value when a magnetic fluid of standard vacuum specification (A type) is used. The value is different when a magnetic fluid of anti-corrosion specification (F type) or low vapor pressure and anti-corrosion specification (U type) is used.
  • (*2): The allowable rotation rate when no load is applied to the shaft.
  • (*3): The allowable rotation rate when the allowable radial load is applied.
  • (*4): The maximum axial load that can be applied to the center of magnetic fluid seal shaft.
    If the load combined with the radial load is applied, or if the load point is off the center of the shaft, please contact us from the Inquiry Form for the magnetic fluid and describe the load conditions in the form.
  • (*5): The maximum radial load that can be applied to the shaft end of magnetic fluid seal.
    If the load combined with the axial load is applied, or if the load point is far from the shaft end, please contact us from the Inquiry Form for the magnetic fluid and describe the load conditions in the form.
  • (*6): Starting torque is the maximum load torque upon starting of rotation. This is a reference value and not a guaranteed value. Recommended load torque for selecting a motor is about three times as high as the value described above.

Common Specification for Standard Products

Vacuum resistance 1.0x10-6Pa
Leakage rate (He) 9.9×10-11Pa・m3/sec or less
Operating atmosphere (*1) In vacuum / in inert gas / in corrosive gas
Materials used Housing SUS 304
Shaft SUS 630
Pole piece SUS 630
Bearing SUJ2
O-ring FKM
Bearing lubricant Vacuum side: fluorine vacuum grease
Atmosphere side: general-purpose case with rust inhibitor
Standard accessories (*2) O-ring
Washer and nut (LSB Series)
  • (*1): For application with corrosive gases, please specify a magnetic fluid of anti-corrosion specification or low vapor pressure and anti-corrosion specification.
    Also, some gas types and operating conditions require different support. Please contact our sales personnel to inform us of your operating environment.
  • (*2): The size of O-ring supplied is described on the page for details of each model.
    Also, the LSB Series are supplied with mounting washer and nut.
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