Rigaku Co., Ltd.

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Cantilever Series CMB-***-C***

Solid shaft (equipped with shaft)Shaft diameter ：10Shaft diameter ：12Shaft diameter ：15Bearing arrangement ：Cantilever (One side)Water cooling：Water cooling
Round straightFlat cutKey groove

This is a ConFlat flange type and has a tap hole processed for a motor mount. Motor connection is easy.
For shaft diameter of 15mm or over, end face flat processing is not covered by this specification.

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

CMB-010-C CMB-012-C CMB-015-C
Inquiry Inquiry Inquiry Inquiry
A [mm] 10g6-0.005
-0.014		 12g6-0.006
-0.017		 15g6-0.006
-0.017
B [mm] 153 153 179
C [mm] 45 45 55
D [mm] 83 83 94
E [mm] 69.5 69.5 114
F [mm] 13 13 18
H [mm] 52f7-0.030
-0.060		 52f7-0.030
-0.060		 56f7-0.030
-0.060
I [mm] 44 44 56
J 6-Φ6.6PCD58.7 6-Φ6.6PCD58.7 8-Φ8.4PCD92.1
K 4-M6 deep 10PCD42 4-M6 deep 10PCD42 4-M6 deep 10PCD47
L [mm] 20 20
ICF Standard ICF70 ICF70 ICF114
Water cooling option 2-Rc1/8 2-Rc1/8 2-Rc1/8
G [mm] 11 11 11
Shaft option１ Key groove (both ends) Key groove (both ends) Key groove (both ends)
S [mm] 16 19 26
T [mm] 2.5+0.1
0		 2.5+0.1
0		 3+0.1
0
U [mm] 4+0.040
0		 4+0.040
0		 5+0.040
0
Shaft option２ Flat cut (both ends) Flat cut (both ends)
S [mm] 15 18
V [mm] 1 1
Max. rotation rate [rpm] (*1) (*2)
(with water cooling)		 4800（16000） 4800（16000） 3400（11000）
Rated rotation rate [rpm] (*1) (*3)
(with water cooling)		 1700 2100（2500） 2600
Allowable axial load [N] (*4) 29 29 29
Allowable radial load [N] (*5) 45 64 69
Mass [kg] 1.3 1.3
Starting torque [N∙m] (*1) (*6) 0.054 0.054 0.11
Allowable transmission torque [N∙m] 9 13 30
  • (*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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