DFC Coupling

Disc Flexible Couplings (DFC) are made with Disc Set and Aluminium Hubs for clamping. These Discs are bolted alternately to the Aluminium Hubs from both sides of Disc Sets.Disc Flexible Coupling (DFC) the three or five pieces’ assembly of 2 no. Aluminium or 3 no. Aluminium hubs and 1 no. or 2 no. of Stainless Steel Disc sets. These three or five parts are assembled with bolts with precision. This assembly becomes a Backlash Free and High Torsional Stiff, precise, long life Disc Flexible Coupling (DFC). Disc Flexible Coupling (DFC) Couplings are more suitable for higher RPM, Temperature, uni-direction or bi-directions.

APPLICATION

  • Servo Motors,
  • Stepper Motors,
  • Ball-screws,
  • CNC machines,
  • X-Y slides,
  • Shaft Encoders,
  • Tacho-generators,
  • Medical Equipment’s,
  • Precise Spindles,
    and much more precise backlash-free motion and power transmission applications.

BENEFITS

  • Flexible,
  • Backlash-free,
  • High Torsional Stiffness,
  • No maintenance,
  • No Lubrication,
  • Uniform & Positive motion and power transmission,
  • higher temperature,
  • Available in Unbored,
  • pilot bore and finish bore and key-ways.
TECHNICAL DETAILS

DFC Single Lamina Set (DFC SL Series)

Dimentional Details

Size

DFC

SL

Bore Sizes Step Hub  mm Bore Sizes Full Hub mm                Overall Dimentions      Screw Details Screw
Minimum
mm
d1
Maximum
mm
d2
Minimum
mm
d1
Maximum
mm
d2
Outer
Dia.
D mm
Total
Length
L mm
Outer
Step Dia.
D1 mm
Lamina
I.D.
d3 mm
Hub
Length
l1 & l2 mm
Space Betⁿ
Hubs
E m
Screw
Size
S
Distance
from edge
l3
Tightening
Torque
Ts Nm
DFC 20 SL   3.00 12.00 26.00 24.00   12.10 11.20 1.6 M 2.5 3.50 0.8
DFC 25 SL     5.00 14.00 29.00 24.00   14.50 11.00 2 M 2.5 3.50 0.8
DFC 30 SL 5.00 10.00     34.00 27.00 22.00 14.50 12.40 2.2 M 3 3.75 1.5
DFC 30 SL 5.00 10.00 10.00 16.00 34.00 27.00 22.00 14.50 12.40 2.2 M 3 3.75 1.5
DFC 30 SL     10.00 16.00 34.00 27.00   14.50 12.40 2.2 M 3 3.75 1.5
DFC 35 SL     6.00 18.00 39.00 34.00   17.00 15.50 3 M 4 4.50 3
DFC 40 SL 8.00 15.00     44.00 34.00 34.00 20.00 15.50 3 M 4 4.50 3
DFC 40 SL 8.00 15.00 15.00 22.00 44.00 34.00 34.00 20.00 15.50 3 M 4 4.50 3
DFC 40 SL     15.00 22.00 44.00 34.00   20.00 15.50 3 M 4 4.50 3
DFC 50 SL 8.00 19.00     56.00 44.00 38.00 26.10 20.75 2.5 M 5 6.00 8
DFC 50 SL 8.00 19.00 19.00 30.00 56.00 44.00 38.00 26.10 20.75 2.5 M 5 6.00 8
DFC 50 SL     19.00 30.00 56.00 44.00   26.10 20.75 2.5 M 5 6.00 8
DFC 60 SL 11.00 24.00     68.00 54.00 46.00 31.20 25.35 3.3 M 6 7.75 10.5
DFC 60 SL 11.00 24.00 24.00 35.00 68.00 54.00 46.00 31.20 25.35 3.3 M 6 7.75 10.5
DFC 60 SL     24.00 35.00 68.00 54.00   31.20 25.35 3.3 M 6 7.75 10.5
DFC 80 SL     18.00 40.00 82.00 68.00   38.10 30.00 8 M 8 9.00 25
DFC 90 SL     25.00 45.00 94.00 68.00   42.20 30.00 8 M 8 9.00 25
DFC 100 SL     32.00 45.00 104.00 70.00   48.20 30.00 10 M 8 9.00 25
Technical Details
Size
DFC
SL
Rated
Torque
Nm
Max. Shaft Misalignment Max
Speed
RPM
Torsional
Stiffness
Nm/rad
Mass Moment of
Inertia
Kgcm²
Parallel
mm
Axial
mm
Angular
Degree
DFC 20 SL 2 0.02 0.15 1 10000 3700 0.02360
DFC 25 SL 4 0.02 0.20 1 10000 5600 0.03700
DFC 30 SL 5 0.02 0.20 1 10000 8000 0.08200
DFC 35 SL 8 0.02 0.25 1 10000 18000 0.16500
DFC 40 SL 10 0.02 0.30 1 10000 20000 0.29550
DFC 50 SL 25 0.02 0.40 1 10000 32000 1.00000
DFC 60 SL 60 0.02 0.45 1 10000 70000 2.70000
DFC 80 SL 100 0.02 0.55 1 10000 140000 7.10000
DFC 90 SL 180 0.02 0.65 1 10000 100000 12.30000
DFC 100 SL 250 0.02 0.75 1 10000 120000 18.60000


DFC Double Lamina Set (DFC DL Series)

Dimentional Details
Size
DFC
DL
Bore Sizes Step Hub  mm Bore Sizes Full Hub mm Overall Dimentions  Screw Details Screw
Minimum
mm
d1
Maximum
mm
d2
Minimum
mm
d1
Maximum
mm
d2
Outer
Dia.
D mm
Total
Length
L mm
Outer
Step Dia.
D1 mm
Lamina
I.D.
d3 mm
Hub
Length
l1 & l2 mm
Spacer
Width
L1 mm
Space Betⁿ
Hubs
E mm
Screw
Size
S
Distance
from edge
l3
Tightening
Torque
Ts Nm
DFC 20 DL     3.00 12.00 26.00 32.00   12.00 11.20 6.40 1.60 M 2.5 3.5 0.8
DFC 25 DL     5.00 14.00 29.00 33.00   14.50 11.00 7.00 2.00 M 2.5 3.5 0.8
DFC 30 DL 5.00 10.00     34.00 38.00 22.00 14.50 12.40 8.80 2.20 M 3 3.75 1.5
DFC 30 DL 5.00 10.00 10.00 16.00 34.00 38.00 22.00 14.50 12.40 8.80 2.20 M 3 3.75 1.5
DFC 30 DL     10.00 16.00 34.00 38.00   14.50 12.40 8.80 2.20 M 3 3.75 1.5
DFC 35 DL     6.00 18.00 39.00 48.00   17.00 15.50 11.00 3.00 M 4 4.5 3
DFC 40 DL 8.00 15.00     44.00 48.00 30.00 20.00 15.50 11.00 3.00 M 4 4.5 3
DFC 40 DL 8.00 15.00 15.00 22.00 44.00 48.00 30.00 20.00 15.50 11.00 3.00 M 4 4.5 3
DFC 40 DL     15.00 22.00 44.00 48.00   20.00 15.50 11.00 3.00 M 4 4.5 3
DFC 50 DL 8.00 19.00     56.00 60.00 38.00 26.10 20.75 13.50 2.50 M 5 6 8
DFC 50 DL 8.00 19.00 19.00 30.00 56.00 60.00 38.00 26.10 20.75 13.50 2.50 M 5 6 8
DFC 50 DL     19.00 30.00 56.00 60.00   26.10 20.75 13.50 2.50 M 5 6 8
DFC 60 DL 11.00 24.00     68.00 73.00 46.00 31.20 25.35 16.00 3.30 M 6 7.75 10.5
DFC 60 DL 11.00 24.00 24.00 35.00 68.00 73.00 46.00 31.20 25.35 16.00 3.30 M 6 7.75 10.5
DFC 60 DL     24.00 35.00 68.00 73.00   31.20 25.35 16.00 3.30 M 6 7.75 10.5
DFC 80 DL     18.00 40.00 82.00 98.00   38.10 30.00 22.00 8.00 M 8 9 25
DFC 90 DL     25.00 45.00 94.00 99.00   42.20 30.00 23.00 8.00 M 8 9 25
DFC 100 DL     32.00 45.00 104.00 102.00   48.20 30.00 22.00 10.00 M 8 9 25
Technical Details
Size
DFC
DL
Rated
Torque
Nm
Max. Shaft Misalignment Max
Speed
RPM
Torsional
Stiffness
Nm/rad
Mass Moment of
Inertia
Kgcm²
Parallel Axial Angular
mm mm Degree
DFC 20 DL 2 0.15 0.35 1 10000 1850 0.03400
DFC 25 DL 4 0.16 0.40 1 10000 2800 0.05300
DFC 30 DL 5 0.18 0.40 1 10000 4000 0.11500
DFC 35 DL 8 0.24 0.50 1 10000 9000 0.26780
DFC 40 DL 10 0.24 0.60 1 10000 10000 0.42620
DFC 50 DL 25 0.28 0.80 1 10000 16000 1.42000
DFC 60 DL 60 0.34 0.90 1 10000 35000 3.78000
DFC 80 DL 100 0.52 1.10 1 10000 70000 10.34000
DFC 90 DL 180 0.52 1.30 1 10000 50000 17.76000
DFC 100 DL 250 0.55 1.50 1 10000 60000 27.10000

KULKARNI TRANSPOWER PVT. LTD.
106 R-Cube, Rahul Park.
NH-4, Warje,
Pune – 411058
Maharashtra India
Mobile: 91 0-9422007155 / 9764444391
E-mail: sales@ktppl.com

 

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