Product Information

MF Models Specifications

MF Models

[Specifications]

ModelRated Torque [N・m]MisalignmentMax. rotation speed [min-1Torsional stiffness [N・m/rad]Moment of inertia [kg・m2Mass [kg]
Parallel [mm]Angular [°]Axial [mm]
MF-8K50.33+0.815000286.51.66×10-50.1
MF-12K100.43+1.0120005733.32×10-50.16
MF-16K200.63+1.2900011469.18×10-50.31
MF-20K400.73+1.6700022922.12×10-40.5
MF-25K900.93+2.0600034385.33×10-40.9
MF-30K1501.13+2.550004297.51.35×10-31.7
MF-35K2201.23+3.2450063032.86×10-32.8

*Max. rotation speed does not take into account dynamic balance.

*The moment of Inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Unit [mm]
Modeld1DLL1L2ABCEFGK
Pilot boreMin.Max.
MF-8K3.548213011642301813191.53- φ 4.8
MF-12K5.5612264016.5648372216.5241.53- φ 4.8
MF-16K5.510163550226.558473022.4321.54- φ 4.8
MF-20K5.51220456027765523528401.54- φ 4.8
MF-25K5.51425557533.58.575624235501.56- φ 5.8
MF-30K5.51630659540109074.54740.8602.54- φ 7.0
MF-35K5.52035751154813100845746702.56- φ 7.0

*Pilot bores are to be drilled into the part.

[Standard Hole-drilling Standards]

Unit [mm]
Models compliant with the old JIS standard (class 2)
JIS B 1301 1959
Models compliant with the new JIS standard (H9)
JIS B 1301 1996
Models compliant with the new JIS standard (JS9)
JIS B 1301 1996
Models compliant with the motor standard
JIS C 4210 2001
Nominal
bore
diameter
Bore diameter
[d1・d2]
Keyway width
[W1・W2]
Keyway height
[T1・T2]
Set screw hole
[M]
Nominal
bore
diameter
Bore diameter
[d1・d2]
Keyway width
[W1・W2]
Keyway height
[T1・T2]
Set screw hole
[M]
Nominal
bore
diameter
Bore diameter
[d1・d2]
Keyway width
[W1・W2]
Keyway height
[T1・T2]
Set screw hole
[M]
Nominal
bore
diameter
Bore diameter
[d1・d2]
Keyway width
[W1・W2]
Keyway height
[T1・T2]
Set screw hole
[M]
Tolerance
H7,H8
Tolerance
E9
Tolerance
H7
Tolerance
H9
Tolerance
H7
Tolerance
JS9
Tolerance
G7,F7
Tolerance
H9
44+0.01802-M3
55+0.01802-M3
66+0.01802-M4
6.356.35+0.02202-M4
77+0.02202-M4
88+0.02202-M4
99+0.02202-M4
9.59.5+0.02202-M4
9.5259.525+0.02202-M4
1010+0.02202-M4
1111+0.01802-M4
1212+0.01804+0.050+0.02013.5+0.302-M412H12+0.01804+0.030013.8+0.302-M412J12+0.01804±0.015013.8+0.302-M4
1414+0.01805+0.050+0.02016.0+0.302-M414H14+0.01805+0.030016.3+0.302-M414J14+0.01805±0.015016.3+0.302-M414N14+0.024+0.0065+0.030016.3+0.302-M4
1515+0.01805+0.050+0.02017.0+0.302-M415H15+0.01805+0.030017.3+0.302-M415J15+0.01805±0.015017.3+0.302-M4
1616+0.01805+0.050+0.02018.0+0.302-M416H16+0.01805+0.030018.3+0.302-M416J16+0.01805±0.015018.3+0.302-M4
1717+0.01805+0.050+0.02019.0+0.302-M417H17+0.01805+0.030019.3+0.302-M417J17+0.01805±0.015019.3+0.302-M4
1818+0.01805+0.050+0.02020.0+0.302-M418H18+0.01806+0.030020.8+0.302-M518J18+0.01806±0.015020.8+0.302-M5
1919+0.02105+0.050+0.02021.0+0.302-M419H19+0.02106+0.030021.8+0.302-M519J19+0.02106±0.015021.8+0.302-M519N19+0.028+0.0076+0.030021.8+0.302-M5
2020+0.02105+0.050+0.02022.0+0.302-M420H20+0.02106+0.030022.8+0.302-M520J20+0.02106±0.015022.8+0.302-M5
2222+0.02107+0.061+0.02525.0+0.302-M622H22+0.02106+0.030024.8+0.302-M522J22+0.02106±0.015024.8+0.302-M5
2424+0.02107+0.061+0.02527.0+0.302-M624H24+0.02108+0.036027.3+0.302-M624J24+0.02108±0.018027.3+0.302-M624N24+0.028+0.0078+0.036027.3+0.302-M6
2525+0.02107+0.061+0.02528.0+0.302-M625H25+0.02108+0.036028.3+0.302-M625J25+0.02108±0.018028.3+0.302-M6
2828+0.02107+0.061+0.02531.0+0.302-M628H28+0.02108+0.036031.3+0.302-M628J28+0.02108±0.018031.3+0.302-M628N28+0.028+0.0078+0.036031.3+0.302-M6
3030+0.02107+0.061+0.02533.0+0.302-M630H30+0.02108+0.036033.3+0.302-M630J30+0.02108±0.018033.3+0.302-M6
3232+0.025010+0.061+0.02535.5+0.302-M832H32+0.025010+0.036035.3+0.302-M832J32+0.025010±0.018035.3+0.302-M8
3535+0.025010+0.061+0.02538.5+0.302-M835H35+0.025010+0.036038.3+0.302-M835J35+0.025010±0.018038.3+0.302-M8

* These standard bore drilling standards apply to BAUMANNFLEX MM/MF models.

* All standards starting from ø11 are the same as those in the old JIS standards column.

* Positions of set screws and keyways are not on the same plane.

* Set screws are included with the product.

* Positioning precision for keyway milling is determined by sight.

* Contact Miki Pulley when the keyway requires a positioning precision for a particular flange hub.

* Consult the technical documentation at the end of this volume for standard dimensions for bore drilling other than those given here.

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