Manual

KD®
Disc Couplings
Size 023 through 905

NEW

Size 023 for Low HP Drive

Non-Lubricated for
Simplified Maintenance
Higher Torque Ratings,
Similar to
Gear Couplings
Excellent Balance
Characteristics

For More
Information

Visit www.kopflex.com

Index:
Page
Technical Advantages ........................................... 20
SelectionProcedure.............................................. 21
Disc Pack Descriptions ......................................... 21
Service Factors ..................................................... 22
Dynamic Balancing Guide .................................... 23
Product Overview and Index .......................... 24 - 25
KD Slide Disc Coupling Comments ............... 26 - 27
KD1 Close Coupled....................................... 28 - 29
KD10 Close Coupled ..................................... 30 - 31
KD11 Close Coupled ..................................... 32 - 33
KD2® Spacer Coupling ................................... 34 - 35
KD20 Spacer Coupling .................................. 36 - 37
KD21 Spacer Coupling .................................. 38 - 39
KD22 Spacer Coupling .................................. 40- 41
KD33 Cooling Tower Coupling .............................. 42
KD4 Single Flex .................................................... 43
KD41 & KD41T Floating Shafts ..................... 44 - 45
KD42 & KD42T Floating Shafts ..................... 46 - 47
KD42S Slide Floating Shafts ......................... 48 - 49
KD5 Single Flex ............................................. 50 - 51KD50 Spacer Coupling .................................. 52 - 53
KD51 & KD51T .............................................. 54 - 55
19

KD® Disc Couplings

KD® DISC Couplings
KD Series of flexible shaft couplings
provides reliable transmission of
mechanical power from driving to
driven machine where a lowmaintenance, non-lubricated coupling
is required.
KD® Disc Couplings arespecifically
designed to accommodate general
purpose drive system applications
such as centrifugal pumps,
compressors, generators, cooling
towers, machine tools, printing and
pulp and paper machines.
KD® Couplings transmit torque and
provide for both angular and axial
misalignment between shafts with a
coupling comprised of shaft mounted
hubs connected through flexible disc
packs with spacer orsleeve
assemblies.

All KD® Couplings use stainless steel
discs as flexible members, providing
high strength and good corrosion
resistance. The streamline disk pack
design results in the reaction load on
equipment bearings being minimized.
These disc pack couplings are
inherently self-centering; additional
provision for limited end float is not
required.
Most disc packs are unitizedand,
along with self-locking nuts, they
greatly reduce the number of loose
parts, thus simplifying installation and
replacement.
KD® Disc Couplings are now available
in an expanded range of sizes and
styles suitable for common
installations. Or if you need something
special, we can design a coupling to
meet your specific requirements.

For More
Information

Visit www.kopflex.com
20KD® Disc Couplings
Disc Pack Data

Selection Procedure
1. Coupling Style:
Select the appropriate KD® coupling style for your application
from the Product Overview & Index.

MT disc pack

[ Medium Torque ]
unitized, 3 bolt disc with “prestretch”
bushings that get pressed into the
flanges, uses standard fasteners.
KD1, 2

HT disc pack

[ High Torque]
unitized, 3, 4 or 5 boltdiscs, thicker
for high torque, body fit bolts.
KD11, 20, 21, 22, 4, 41, 42

HS disc pack

[ High Torque - Semi-unitized ]
same as HT but semi-unitized so that
the disc packs may be installed out
between close-coupled hubs.
KD10

CT disc pack

[ Cooling Tower ]
unitized, 3 bolt disc for cooling
tower couplings, stainless steel
components with body-fit bolts.
KD33

HM disc pack...