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

Standard Series F1T-***-B***

This is a hollow shaft version of the F1B type. As you prepare the shaft as you like, there is a degree of freedom in the design. In this specification, bearings are installed in both sides.

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

Model F1T-010-B F1T-012-B F1T-015-B F1T-020-B F1T-025-B F1T-030-B F1T-040-B F1T-050-B F1T-075-B
Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry Inquiry
A [mm] 10H7+0.015
0
12H7+0.018
0
15H7+0.018
0
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] 60 60 69 63 65 71 72 84 94
D [mm] 58 58 67 61 63 69 70 82 92
E [mm] 74f7-0.030
-0.060
74f7-0.030
-0.060
84f7-0.036
-0.071
89f7-0.036
-0.071
104f7-0.036
-0.071
109f7-0.036
-0.071
119f7-0.036
-0.071
134f7-0.043
-0.082
168f7-0.043
-0.083
F [mm] 8 8 10 12 12 12 12 12 12
H [mm] 47 47 54 59 70 75 85 98 132
J 6-Φ6.5
PCD61
6-Φ6.5
PCD61
6-Φ9
PCD70
6-Φ9
PCD75
6-Φ9
PCD88
6-Φ9
PCD93
8-Φ9
PCD103
8-Φ9
PCD116
8-Φ9
PCD150
O1 (O-ring used) G40 G40 G45 G50 G60 G70 G80 G90 G120
O2 (O-ring used) S10 S12 S15 S20 S25 S30 S40 S50 S75
P [mm] 17 17 20 30 35 40 50 60 90
Q1 [mm] 7 7 7 8 8 9 10 10 11
Q2 [mm] 9 9 10 10 11 12 12 12 15
Water cooling option 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8 2-Rc1/8
G [mm] 20 20 22 17 18 21 21 22 22
Shaft option Clamp Clamp Clamp Clamp Clamp Clamp Clamp Clamp Clamp
W [mm] 11 11 11 13 15 15 15 15 19
X [mm] 35 37 40 45 57 61 73 83 109
Y (hexagon socket head bolt) M4×10 M4×10 M4×10 M4×10 M6×12 M6×12 M6×16 M6×16 M8×20
Max. rotation rate [rpm] (*1) (*2) 2200 2200 1900 1300 1100 1000 800 600 400
Rated rotation rate [rpm] (*1) (*3) 2200 2200 1900 1300 1100 1000 800 600 400
Allowable axial load [N] (*4) 252 252 390 300 440 550 580 810 800
Allowable radial load [N] (*5) 252 252 390 300 440 550 580 810 800
Mass [kg] 0.9 0.9 1.3 1.5 2 2.4 2.9 4.2 7.5
Starting torque [N∙m]
(*1) (*6)
0.1 0.1 0.14 0.32 0.43 0.56 0.88 1.3 2.8
Recommended shaft diameter [mm](*4) 10f7-0.013
-0.028
12f7-0.016
-0.034
15f7-0.016
-0.034
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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