Kop-Flex Series H Catalog Page
Series H
Gear Couplings
Size 1 through 30
MOST ECONOMICAL
GEAR COUPLING DESIGN
LARGE BORE CAPACITY,
WITH O-RING SEAL
Index:
Page
HOW TO ORDER ........................................ 127
Technical Advantages.......................... 126 - 127
Service Factors ............................................ 128
Selection Procedure .................................... 129
Dynamic Balancing Guide ............................ 129
Full Flex Coupling ................................ 130 - 132
Fastener Data ..................................... 130 - 131
Spacer Coupling ........................................... 133
Flex Rigid Coupling ............................. 134 - 135
Floating Shaft Coupling ....................... 134 - 135
Mill Motor Coupling ............................ 136 - 137
Limited End Float Coupling .......................... 138
Vertical Coupling .......................................... 138
Slide Coupling .............................................. 139
Brake Wheel Coupling ................................. 140
Brake Disc Coupling .................................... 141
Alloy Steel Full Flex ...................................... 142
Alloy Steel Spacer Coupling ......................... 143
125
THE SERIES H ADVANTAGES:
Higher Misalignment Capability
Sizes 1-7 compensate for up to ±1 1/2° static angular
misalignment per gear mesh.
Minimizing operating misalignment will maximize the life of the
coupling. Refer to the Installation and Alignment Instructions
for alignment recommendations.
Larger Bore Capabilities allow the most economical size
selection for shafts up to 10 5/8".
Higher Torque Ratings due to larger tooth pitch diameters than
other couplings.
Versatility in that Series H’s are interchangeable by half coupling
with competitive coupling designs.
1 1/2° Curved-Face Teeth are a prime feature of the Series H
coupling, sizes 1-7. The crowned hub teeth are a 20° full-depth
involute tooth form with flank, tip, and root curvature. When
used with the straight faced sleeve teeth, these 1 1/2
face hubs offer increased shaft misalignment capability.
° curved
SERIES H GEAR COUPLINGS
Crowned Tooth Sizes 1 - 7
CENTER FLANGE BOLTING:
All couplings feature precision-drilled flange bolt holes, and
tight tolerance Grade 5 flange bolts to assure a long-lasting
flange to flange and fastener fit. Exposed bolt flanges are
standard. Shrouded bolt flanges can be supplied through size
5. Size #5 1/2 and larger couplings are only available with
exposed bolt flanges.
Coupling Greases
KOP-FLEX offers greases specifically designed for use in coupling
applications. For proper lubrication and long service life, use KSG
Standard Coupling Grease, or KHP High Performance Coupling
Grease. See pages 170-172 for detailed specifications.
LUBRICATION:
Each sleeve flange is supplied with two pipe plugs 180° apart.
This permits assembly of a full flex coupling with four lube
plugs positioned every 90°, facilitating lubrication.
The lube seal is a Buna-N O-ring to help retain grease and
exclude contaminants. KHP or KSG coupling greases are
recommended in order to obtain maximum operating life.
126
Series H couplings of Size 8 to 30 are designed for ±1/2°
misalignment per flex half coupling, to compensate for
misalignment between the shafts in a full-flex coupling.
Series H couplings can be supplied in full-flex, flex-rigid,
floating shaft and spacer arrangements as well as custom
designs. Only exposed bolt flanges are available in sizes 8
to 30.
The straight-faced, involute stub tooth form is used in the Series
H coupling, sizes 8 to 30. This tooth form distributes contact
pressures across the full length of the hub tooth, to best develop the needed lubricating film, minimizing tooth wear and
extending coupling service life for years of operation.
The End Rings are removable for ease of assembly and to
allow inspection of the gear sets. A Buna-N O-ring seal is
incorporated to help exclude contaminants and retain the
lubricant. Designed for grease lubrication, our KSG or KHP
coupling greases are recommended to obtain maximum
operating life.
SERIES H GEAR COUPLINGS
Straight Tooth Sizes 8 - 30
PART NUMBER EXPLANATION
Complete Rough Bore Coupling
Coupling Size (1 to 30)
Coupling Style (H = Series H)
Bolt Type (EB = Exposed Bolt)
(SB = Shrouded Bolt)
Coupling Type (FF = Full Flex
FR = Flex Rigid
MMFF = Mill Motor Full Flex
SSFF = Slide Full Flex
SSFR = Slide Flex Rigid)
1 1/2 H EB FF
1 1/2H FHUB FB
HOW TO ORDER
COUPLING PARTS
Description
*FHUB = Flex Hub
*RHUB = Rigid Hub
*MMHUB = Mill Motor Hub
SLEEVE = Standard Sleeve
SSLEEVE = Slide Sleeve
FS = Fastener Set (w/gasket)
ERFS = End Ring Fastener Set
VSFS = Vertical/Slide Fastener Set (w/gasket)
LEFD = LEF Disk
SPRxxx = Spacer for x.xx shaft separation
SP = Stop Plate for Slide Couplings
VP = Vertical Plate
* For finish bored hubs, add FB and bore size.
All finish bores and keyways per
AGMA/ASNSI 9002 (Imperial) and
AGMA/ANSI 9112 (Metric).
Clearance bores are available on request
with one setscrew over keyway.
127
Values listed are intended only as a general
guide, and are typical of usual service
requirements. For systems which frequently
utilize the peak torque capability of the power
source, verify that the magnitude of this peak
torque does not exceed the 1.0 Service Factor
Rating of the coupling selected. Applications
which involve extreme repetitive shock or
high-energy load absorption characteristics
should be referred — with full particulars —
to KOP-FLEX.
Values contained in the table are to be
applied to smooth power sources such as
electric motors and steam turbines. For drives
involving internal combustion engines of four
or five cylinders, add 1.0 to the values listed;
for six or more cylinders, add 0.5 to the values
listed. For systems utilizing AC or DC Mill
Motors as the prime mover, refer to Note (1).
CAUTION: All people moving plus overhead
crane applications must be referred to
engineering.
Typical
Application Service
Factor
AGITATORS
Pure Liquids ...........................................................1.0
Liquids & Solids ......................................................1.25
Liquids — Variable Density .....................................1.25
BLOWERS
Centrifugal ..............................................................1. 0
Lobe .......................................................................1.5
Vane .......................................................................1.25
BRIQUETTE MACHINES .................................................2.0
CAR PULLERS — Intermittent Duty................................1.5
COMPRESSORS
Centrifugal ..............................................................1. 0
Centriaxial ...............................................................1.25
Lobe .......................................................................1.5
Reciprocating — Multi-Cylinder ..............................2.0
CONVEYORS — LIGHT DUTY
UNIFORMLY FED
Apron, Bucket, Chain, Flight, Screw .......................1.25
Assembly, Belt .......................................................1. 0
Oven .......................................................................1.5
CONVEYORS — HEAVY DUTY
NOT UNIFORMLY FED
Apron, Bucket, Chain, Flight, Oven ........................1.5
Assembly, Belt .......................................................1.25
Reciprocating, Shaker ............................................2.5
CRANES AND HOISTS (NOTE 1 and 2)
Main hoists, Reversing ...........................................2.5
Skip Hoists, Trolley & Bridge Drives .......................2.0
Slope ......................................................................2.0
CRUSHERS
Ore, Stone ..............................................................3.0
DREDGES
Cable Reels ............................................................1.75
Conveyors ..............................................................1. 5
Cutter Head Jig Drives ...........................................2.5
Maneuvering Winches ............................................1.75
Pumps ....................................................................1.75
Screen Drives .........................................................1.75
Stackers..................................................................1.75
Utility Winches .......................................................1.5
ELEVATORS (NOTE 2)
Bucket ....................................................................1.75
Centrifugal & Gravity Discharge .............................1.5
Escalators ...............................................................1. 5
Freight ....................................................................2.5
FANS
Centrifugal ..............................................................1. 0
Cooling Towers .......................................................1. 5
Forced Draft............................................................1.5
Induced Draft without Damper
Control ................................................................2.0
FEEDERS
Apron, Belt, Disc, Screw ........................................1.25
Reciprocating .........................................................2.5
Typical
Application Service
Factor
GENERATORS —
(Not Welding) ............................................................1.0
HAMMER MILLS ...........................................................2.0
LAUNDRY WASHERS —
Reversing ..............................................................2.0
LAUNDRY TUMBLERS ....................................................2.0
LINE SHAFT ..................................................................1. 5
LUMBER INDUSTRY
Barkers — Drum Type ...............................................2.0
Edger Feed ................................................................2.0
Live Rolls ...................................................................2.0
Log Haul — Incline ....................................................2.0
Log Haul — Well type ...............................................2.0
Off Bearing Rolls .......................................................2.0
Planer Feed Chains ...................................................1.75
Planer Floor Chains ...................................................1.75
Planer Tilting Hoist ....................................................1.75
Slab Conveyor ...........................................................1.5
Sorting Table ..............................................................1.5
Trimmer Feed ............................................................1.75
MARINE PROPULSION
Main Drives ...............................................................2.0
MACHINE TOOLS
Bending Roll ..............................................................2.0
Plate Planer ...............................................................1. 5
Punch Press — Gear Driven ......................................2.0
Tapping Machines .....................................................2.5
Other Machine Tools
Main Drives ...........................................................1.5
Auxiliary Drives .....................................................1.25
METAL MILLS
Draw Bench — Carriage ............................................2.0
Draw Bench — Main Drive .......................................2.0
Forming Machines ....................................................2.0
Slitters .......................................................................1.5
Table Conveyors
Non-Reversing ......................................................2.25
Reversing .............................................................2.5
Wire Drawing & Flattening Machine .........................2.0
Wire Winding Machine ..............................................1.75
METAL ROLLING MILLS (NOTE 1)
Blooming Mills ..........................................................*
Coilers, hot mill .........................................................2.0
Coilers, cold mill ........................................................1.25
Cold Mills ..................................................................2.0
Cooling Beds .............................................................1.75
Door Openers ...........................................................2.0
Draw Benches ...........................................................2.0
Edger Drives .............................................................1.75
Feed Rolls, Reversing Mills .......................................3.5
Furnace Pushers .......................................................2.5
Hot Mills ...................................................................3.0
Ingot Cars .................................................................2.5
Kick-outs ...................................................................2.5
Manipulators .............................................................3.0
Merchant Mills ..........................................................3.0
Piercers .....................................................................3.0
Pusher Rams .............................................................2.5
Reel Drives ................................................................1.75
Reel Drums ...............................................................2.0
Reelers ......................................................................3.0
Rod and Bar Mills ......................................................1.5
Roughing Mill Delivery Table .....................................3.0
Runout Tables
Reversing ..............................................................3.0
Non-Reversing ......................................................2.0
Saws, hot & cold .......................................................2.5
Screwdown Drives ....................................................3.0
Skelp Mills.................................................................3.0
Slitters .......................................................................3.0
Slabbing Mills ............................................................3.0
Soaking Pit Cover Drives ...........................................3.0
Straighteners ............................................................2.5
Tables, transfer & runout ...........................................2.0
Thrust Block ..............................................................3.0
Traction Drive ............................................................3.0
Tube Conveyor Rolls ..................................................2.5
Unscramblers ............................................................2.5
Wire Drawing ............................................................1.5
MILLS, ROTARY TYPE
Ball ............................................................................2.25
Dryers & Coolers ......................................................2.0
Hammer ....................................................................1.75
Kilns ..........................................................................2.0
SERIES H GEAR COUPLINGS
SERVICE FACTORS
Typical
Application Service
Factor
Pebble & Rod ............................................................2.0
Pug ............................................................................1.75
Tumbling Barrels .......................................................2.0
MIXERS
Concrete Mixers
Drum Type .................................................................1. 5
OIL INDUSTRY
Chillers ......................................................................1.25
Paraffin Filter Press ...................................................1.75
PAPER MILLS
Barker Auxiliaries, Hydraulic ......................................2.0
Barker, Mechanical ....................................................2.0
Barking Drum Spur Gear Only ...................................2.25
Beater & Pulper .........................................................1.75
Bleacher ....................................................................1.0
Calenders ..................................................................2.0
Chippers ....................................................................2.5
Coaters .....................................................................1. 0
Converting Machines,
except Cutters, Platers ...........................................1.5
Couch Roll .................................................................1.75
Cutters, Platers .........................................................2.0
Cylinders ...................................................................1.75
Disc Refiners.............................................................1.75
Dryers .......................................................................1.75
Felt Stretcher ............................................................1.25
Felt Whipper ..............................................................2.0
Jordans .....................................................................1.75
Line Shaft ..................................................................1.5
Log Haul ....................................................................2.0
Pulp Grinder ..............................................................1.75
Press Roll ..................................................................2.0
Reel ...........................................................................1.5
Stock Chests .............................................................1.5
Suction Roll ...............................................................1.75
Washers & Thickeners ...............................................1. 5
Winders ....................................................................1. 5
PRINTING PRESSES ......................................................1. 5
PULLERS — Barge Haul ................................................2.0
PUMPS
Centrifugal ................................................................1. 0
Boiler Feed ................................................................1.5
Reciprocating
Single Acting
1 or 2 Cylinders ....................................................2.25
3 or more Cylinders ..............................................1.75
Double Acting ...........................................................2.0
Rotary, Gear, Lobe, Vane ...........................................1.5
RUBBER INDUSTRY
Mixer — Banbury ......................................................2.5
Rubber Calendar .......................................................2.0
Rubber Mill (2 or more) .............................................2.25
Sheeter .....................................................................2.0
Tire Building Machines ..............................................2.5
Tire & Tube Press Openers .......................................1.0
Tubers & Strainers ....................................................2.0
SCREENS
Air Washing ...............................................................1.0
Grizzly .......................................................................2.0
Rotary — Stone or Gravel .........................................1. 5
Traveling Water Intake ...............................................1.25
Vibrating ....................................................................2.5
SEWAGE DISPOSAL EQUIPMENT
Bar Screens...............................................................1.25
Chemical Feeders .....................................................1.25
Collectors, Circuline or Straightline ...........................1.25
Dewatering Screens .................................................1.25
Grit Collectors ...........................................................1.25
Scum Breakers..........................................................1.25
Slow or Rapid Mixers ................................................1.25
Sludge Collectors ......................................................1.25
Thickeners .................................................................1.25
Vacuum Filters ..........................................................1.25
STEERING GEAR .............................................................1. 0
STOKERS .......................................................................1. 0
WINCH ..........................................................................1. 5
WINDLASS ....................................................................1.75
* Refer to KOP-FLEX
NOTES
(1) Maximum Torque at the coupling must not exceed
Rated Torque of the coupling.
(2) Check local and industrial safety codes.
.......................................................1.75
128
1. Select Coupling Based on Bore Capacity.
Select the coupling size that has a maximum bore
capacity equal to or larger than the larger of the
two shafts. For interference fits larger than AGMA
standards, consult KOP-FLEX.
2. Verify Coupling Size Based on Load Rating.
a. Select appropriate Service Factor from the Table
onpage 128.
b. Calculate required HP / 100 RPM:
HP x Service Factor x 100
RPM
c. Verify that the selected coupling has a rating
greater than or equal to the required HP / 100
RPM.
= HP / 100 RPM
DYNAMIC BALANCING GUIDE
SERIES H GEAR COUPLINGS
SELECTION PROCEDURE
3. Check Balance Requirements.
Consult the Dynamic Balancing Guide to help determine if
balancing is required. Verify that the maximum operating
speed does not exceed the maximum speed rating of the
coupling. The maximum speed rating does not consider
lateral critical speed considerations for floating shaft
applications.
Note: Care must be exercised on proper selection of any
shaft coupling. The Users must assure themselves
that the design of the shaft to coupling hub
connection is adequate for the duty intended.
Balancing requirements for a coupling are dependent on
factors determined by the characteristics of the connected
equipment. For this reason, the Balancing Charts should be
used as a GUIDE ONLY to assist in determining whether or
not balancing is required.
The Balancing Charts shown are based on AGMA 9000-C90
suggested balance classes for systems with “Average”
sensitivity to unbalance. For systems with higher sensitivity
to unbalance, balancing of the coupling may be required at
lower speeds. For systems which are less sensitive to unbalance, couplings may be able to operate at higher speeds
than those shown at lower balance levels. Therefore, in the
absence of either a thorough system analysis or past user
experience with a similar installation, these charts should
be used as a GUIDE ONLY.
FAST’S® and Series H gear couplings may be component
balanced, or assembly balanced with fitted components
(Type FB and Type HB, respectively).
WALDRON® gear couplings are available component balanced
only.
Model B gear couplings are not designed to be balanced.
These charts apply to sizes 1 through 7 only. Dynamic
balance of size 8 through 30 must be considered on a caseby-case basis. Consult KOP-FLEX for assistance.
129
A conventional 4-bearing system has two bearings on the
14
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17
18
52
58
54
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32
driving shaft and two bearings on the driven shaft. Both
angular and offset shaft misalignment will be present to
some degree and a full flex coupling is mandatory. The
full flex coupling is the standard coupling having two
gear ring sets, one set per half coupling. For selection
procedure see page 129.
Coupling Greases
KOP-FLEX offers greases specifically designed for use in coupling
applications. For proper lubrication and long service life, use KSG
Standard Coupling Grease, or KHP High Performance Coupling
Grease. See pages 170-172 for detailed specifications.
SERIES H GEAR COUPLINGS
FULL FLEX COUPLING SIZE 1-7
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8/723 4/1x4/30500513000360039337 61/1148/161/91 61/7261/51423/
2/134/3361/5x8/709007650043110097758/388/3561/323/514/323/138/7561/723/3
48/348/3x106100010100020200865861/7961/9661/323/928/5123/9138/7623/3
8/545 61/7x4/1153200084100069200060311161/1174/161/118/7161/3423/92723/5
2/158/162/1x2/1157300063200027406252912/1214/384/14/114/124/344/192/12/1
4/168/762/1x4/3150500081300063607741628/53161/11961/561/7161/9261/558/3018/54/3
8/178/372/1x4/31007000144000288003467361/55161/11161/523/1318/5323/1661/91123/1
84/182/1x2029000085000061108834744/36161/72161/523/328/7323/92661/112123/7
8/784/198/5x2/125021000957000815100634068161/53161/523/1128/3423/3178/73123/9
8/3014/3014/3x2/1204810000611000023200032094/3028/3518/361/3124/1561/11861/16161/3
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* Sizes 5 1/2, 6 and 7 are only available with exposed bolt sleeves. Type EB exposed bolt sleeves are standard.
TYPE EB EXPOSED BOLTS
TYPE SB SHROUDED BOLTS
FASTENER DATA
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88/33x4/32/19218/51x8/
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88/33x4/311418/51x8/
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018/33x4/321418/51x8/
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Sizes #5 1/2 and larger are available in exposed bolts only.
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TWO HUBS REVERSED
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1/51
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