Continuous Sleeve Series
Options
Simple and economical all steel form of gear coupling constructed having a single sleeve and 2 hubs
Comparatively basic installation
Precision reduce 20° pressure angle gear teeth with minimal backlash
Most conventional configurations are available as stock goods
Angular misalignment of 1/2° per gear mesh (flex-plane)
Sizes 7/8 through 12, to accommodate bore sizes up to and including 12.50 inches
Interference fit (normal) and Clearance fit on bores are available
Load Capacities vary from two,500 in-lbs up to 2,520,000 in-lbs
Patterns for applications requiring horizontal and vertical orientation, full-flex, flex-rigid, mill-motor, disengagement, sliding hubs, Shear Pin, floating shaft, and spacers
Patented and examined BUNA N seal design with reinforced washers bonded to your within edges which positively retain lubricant and seal the interior from outdoors contaminants
Reinforced rubber seals with snap rings to hold in lubricant
Two snap rings made of hardened spring steel which securely hold the coupling together, are uncomplicated to put in or take away, however withstand 100,000 pounds of end thrust
Inch and Metric bore sizes out there
Flanged Sleeve Series
Features
Patented tooth form for extended coupling life
Precision cut 20° pressure angle gear teeth with minimum backlash
All steel sleeves and hubs (stainless steel accessible)
Designs for applications requiring horizontal and vertical orientation
Most common configurations are available as stock objects
Angular misalignment of 1-1/2° per gear mesh (flex-plane) as much as size 5.5, 3/4° for sizes 6 and above
Coupling sizes obtainable by way of size 30 to accommodate bore sizes as much as and together with 44 inches
Interference fit (common) and Clearance match on bores are available
Load capacities vary from 7,600 in-lbs as much as 47,269,000 in-lbs
Exposed bolts regular on all sizes, shrouded obtainable by request up to size 6
Normal bolts supplied are taken care of to become corrosion resistant
Flanged sleeve couplings are interchangeable with marketplace specifications
Piloted gear match for increased speeds and less vibration
Labyrinth all steel seal style in FL series
Inch and Metric bore sizes readily available
Typical Styles and Sizes
Sier-Bath couplings are stocked in an assortment of configurations which contain C and F standard hubs and sleeves, Mill Motor hubs, Vertical design, Floating Shaft, and Spacer models. ’s exceptional engineering workers make it probable to support lots of added coupling varieties such because the Brakedrum variety, Sliding Hub kind, Shear Pin type, Jordan kind, and customized lengths for non normal shaft separations. Additional size ranges and patterns to meet uncommon application needs could also be manufactured by to meet market place demands. Materials can vary from normal steel to alloy steel and in some cases stainless steel. The outstanding simplicity in the coupling layout make this all probable.
Misalignment and End-Float Capability
The fundamental principle of Sier-Bath C and F variety couplings is similar to that of other conventional versatile gear couplings. Though it’s desirable to align shafts as accurately as you possibly can, the purpose of any flexible coupling would be to absorb probable angular, parallel, and axial (end-float) misalignment. Sier-Bath couplings employ a exclusive gear tooth geometry produced particularly to resolve difficulties with shaft misalignment and accommodate from 1/2° to 1-1/2° per gear mesh or flex plane. The hub teeth are thoroughly crowned to provide to get a larger contact area and reduce stresses below misaligned problems. The crowned tooth design also eliminates most of the end loading that happens on straight gear teeth below misalignment.

The FARR Coupling is utilised when a rigid connection is needed between the low speed shaft of the gearbox and the head shaft of a conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized effectively, the FARR Coupling will carry the applica-tion torque, excess weight of gearbox, motor and swing plate. While in the case of the mixer, it will carry the weight with the shaft and impeller, thrust forces and resulting bending moments.
Elements of a FARR Coupling include male and female piloted hubs produced from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft make contact with. Keeper plates are incorporated for security. The two hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Standard coupling sizes have a nominal torque vary from eleven,300 to five,736,000 in-lbs. Greater sizes can be found dependant upon the application.
Options
Heat Treated 4140 alloy steel
Male and Female pilots
Greater Torque Capacity
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by means of bore
Keeper Plate layout
FARR Coupling Choice Guidebook
A. Obtain The next Facts:
Application
Horsepower & RPM
Gearbox (Reducer) Ratio
Output Velocity
All Shaft Sizes
Overhang Load
Lever Arm
(Distance from end of Gearbox output Shaft to Center-Line of Gearbox or Center Line of Gravity)
B.Calculate Application Torque:
T (in-lb) = ¡ê¡§HP x 63025¡ê?/RPM
C.Calculate Style and design Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capacity equal to or greater than the Style Torque from the Performance Data table.
E.Verify that the Bore capability with the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be applied on the Reducer (Gearbox or Driver) shaft as well as the Female pilot hub to always be employed over the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling assortment.

The DILR and DILRA Kind coupling really are a direct replacement for any floating shaft style gear coupling. The DILR/DILRA is intended to utilize the hubs by now around the customer’s gear. The DILR drop in replacement will probably be produced slightly shorter the DBFF and shims is going to be employed for ease of maintenance. The DILRA is adjustable employing an SLD (Shaft Locking Device) to create axial or length changes. Shoppers with several pieces of gear with similar length couplings can stock one particular spare spacer that may be applied as a replacement for extra than 1 coupling.
If the end consumer needs rigid hubs be supplied with the coupling, a DIR or DIRA Variety coupling is going to be proposed as well as the BSE (distance Concerning Shaft Ends) needs to be specified.
Demanded Information:
The end user need to be ready to provide the following info when contacting Technical Help:
Motor horse power and pace (include things like gearbox ratio ¡§C input and output).
Rigid hub sizes (if the customer is applying current F-Style rigid gear coupling hubs).
DBFF or distance amongst flange faces on the rigid hubs for DILR Variety.
BSE shaft separation is often specified for DIR Sort.
Shaft sizes for rigid hubs DIR and DIRA Kind couplings.
For optimum bore sizes, consult with Gear Coupling Catalog pages F-Style rigid hubs.

DI-6 Type Drop-In Center Industrial Coupling
The DI Variety coupling is definitely the conventional 6 bolt coupling with two hubs along with a spacer assembly that may be installed or eliminated without the need of disturbing the products and hubs and without having removing the disc packs from the spacer assembly. Customized spacer lengths can be specified for unique applications. The coupling has two flex planes (1 at every single disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration may even accommodate axial misalignment inside the specified limits.
Capabilities
Intended to meet the API 610 Regular
Help for extra API prerequisites available on request
Unitized disc pack
Infinite existence if properly aligned
Torsionally rigid with out any back lash
No require for lubrication or upkeep
No wearing elements and higher resistance to harsh environmental ailments
DI-8 Variety Drop-In Center Industrial Coupling
The DI Variety coupling could be the standard 6 bolt coupling with two hubs and also a spacer assembly which can be put in or removed without disturbing the tools and hubs and devoid of removing the disc packs from your spacer assembly. The coupling has two flex planes (one particular at each disc pack) so it could possibly accommodate parallel misalignment from the angular misalignment in each and every disc pack. This configuration will even accommodate axial misalignment inside the specified limits.
Characteristics
Designed to meet the API 610 Regular
Assistance for supplemental API specifications accessible on request
Unitized disc pack
Infinite lifestyle if appropriately aligned
Torsionally rigid with no any back lash
No want for lubrication or servicing
No wearing parts and substantial resistance to harsh environmental situations
Puller holes normal with this particular design.

SXC-6 Type Closed Coupled Industrial Coupling
The SXC-6 Form is the common 6 bolt coupling with two hubs, two disc packs as well as a spacer. The hubs can the two be turned inward to accommodate near coupled applications or 1 hub may be turned outward to accommodate added BSE?¡¥s (shaft separation). The coupling has
two flex planes (a single at each disc pack) so it could possibly accommodate parallel misalignment through the angular misalignment in each disc pack. This configuration may even accommodate axial misalignment within the specified limits.
Characteristics
Unitized disc packs
Infinite existence if thoroughly aligned
Torsionally rigid without the need of any back lash
No need for lubrication or upkeep
No wearing elements and high resistance to harsh environmental ailments
Is usually combined with SU/SX hub for elevated bore capacity
SXCS-6 Form Closed Coupled Industrial Coupling
The SXCS Form could be the typical six bolt coupling with two hubs, two mounting rings, two disc packs as well as a split spacer created for ease of installation and maintenance. Customized spacer lengths may be specified for specific applications. The coupling has two flex planes (a single at every single disc pack) enabling it to accommodate parallel misalignment by the angular misalignment in every single disc pack. This configuration will also accommodate axial misalignment in the specified limits.
Capabilities
Unitized disc pack
Infinite existence when properly sized and aligned
Torsionally rigid devoid of any back lash
No need to have for lubrication or servicing
No wearing elements and substantial resistance to harsh environmental problems
Disc packs may be replaced devoid of moving equipment
For bigger sizes, refer to SXCST couplings
SXCST-6 Form Closed Coupled Industrial Coupling
The SXCST Sort is often a normal six bolt coupling consisting of two hubs, two mounting rings, two disc packs and a split spacer. Customized spacer lengths is often specified for specific applications. The coupling has two flex planes (one particular at just about every disc pack) so it may accommodate parallel misalignment through the angular misalignment in every disc pack. This configuration may also accommodate axial misalignment within the specified limits.
Characteristics
Unitized disc pack
Infinite existence when thoroughly sized and aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with out any back lash
No require for lubrication or upkeep
No sporting components and high resistance to harsh environmental situations
Shut coupled
Split spacer design makes it possible for for ease of upkeep and disc pack removal or substitute without moving equipment.

SU-6 Sort Industrial Coupling
The SU Style coupling is actually a six bolt single flex plane coupling which consists of two hubs and a single disc pack kit. It’s only appropriate for your specified axial and angular misalignment and isn’t going to accommodate parallel misalignment. It really is generally mixed with sound shafts for making floating shaft couplings. See Webpage D-28 for any picture of an SXFS Variety floating shaft coupling.
Capabilities
Unitized disc pack
Infinite daily life when thoroughly aligned
Torsionally rigid without having any back lash
No require for lubrication or servicing
No sporting components and large resistance to harsh environmental conditions
Larger sizes can be found on request
SX-6 Sort Industrial Coupling
The SX-6 Sort is actually a common coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (1 at each and every disc pack) so it might accommodate parallel misalignment through the angular misalignment in every disc pack. This configuration may also accommodate axial misalignment inside of the specified limits.
Functions
Unitized disc pack
Infinite existence when effectively sized and aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid without the need of any back lash
No want for lubrication or servicing
No sporting components and higher resistance to harsh environmental ailments
Overload Bushings can be found
SX-8 Sort Industrial Coupling
The SX-8 Form is usually a common coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (a single at every disc pack) so it could accommodate parallel misalignment through the angular misalignment in just about every disc pack. This configuration will also accommodate axial misalignment inside of the specified limits.
Features
Unitized disc pack
Infinite daily life if correctly aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with no any back lash
No will need for lubrication or upkeep
No sporting components and substantial resistance to harsh environmental conditions.

The following facts should be provided to when placing an purchase to make sure the appropriate choice of the disc coupling:
Application and variety of duty
Type of driver (engine, motor, turbine, and so on.)
Speed and horsepower
Type of driven
Shaft sizes and separation
Room limitations for important diameter and length
Style of match (Interference match default, clearance match and shaft locking device planning accessible upon request)
Particular necessities (vertical mounting, drop out center, flange mount, electrically insulated, API-610 as much as three,800 RPM, shear pins, balancing, and so forth.)
Angular misalignment, axial misalignment, and rated torque are all associated for the coupling’s capacity to accommodate application torque over any time period of time. As illustrated from the following charts, when the application torque increases to 50% with the coupling capability, the ability from the coupling to accommodate angular misalignment to is lowered. The exact same holds real for your capability to accommodate axial misalignment.
Choice Procedure
one. Select the coupling variety.
two. Select the driven machine services issue SFA
3. Select the driving machine services component SFD
Care really should be taken when the driving machine is other than a normal electrical motor or turbine. Some engines will impose additional fluctuations around the drive system and allowance needs to be created accordingly. A torsional coupling may perhaps be necessary for diesel drives.

The following is actually a sample application utilised to illustrate the typical course of action for picking out a Disc coupling. Any resemblance to any current company?¡¥s application is neither intentional nor meant to resemble that company?¡¥s actual application.
Sample Application:
An organization includes a compressor application employing a 225 horsepower electrical motor running at 1,150 RPM to drive a three cylinder multi stage reciprocating air compressor. The electrical motor features a 3-3/8 inch shaft by using a 7/8 inch keyway along with the compressor features a 92mm shaft having a 25mm keyway. The shaft separation is roughly seven inches concerning shaft ends with some capacity to modify the motor area. The shafts possess a parallel misalignment/offset of approximately 1/32 of an inch.
Stage one: The initial step is to establish what coupling sort should be to be chosen for this application. Since the SU Form coupling only supports
just one flex plane, it might only accommodate angular and axial misalignment, but not parallel misalignment. The following selection could be to seem at an SX or DI Type coupling. The 6 bolt SX Form will accommodate both parallel misalignment plus the defined shaft separation. The size is going to be established from the variety torque as well as the shaft diameters.
Phase two: Next, determine the application torque and apply the service factor to calculate the choice torque.The formula applied to determine torque is as follows:
Application Torque ( in¡§Clb ) = ( HP x 63025 )/RPM
or Nm = ( KW x 9550)/RPM
Plugging in the numbers from the application description:
Application Torque ( in-lbs ) =(HP x 63025)/RPM = (225 x 63025)/1150 = 12,331 in-lbs
Application Torque x Support Element = Assortment Torque
12,331 in-lbs x three.0 = 36,993 in-lbs
Step 3: Make use of the SX coupling tables and note that the SX 202-6 is rated at forty,700 in-lbs, in excess of ample to take care of the assortment torque calculated in stage two. The SX202-6, even so, will not help the 92mm shaft size. The subsequent more substantial dimension coupling, the SX228-6, will help the 92mm shaft size plus the shaft separation dimension (BSE) is 6.88 inches, very near to the application?¡¥s sought after 7 inch separation. The SX228-6 is rated at 62,000 in-lbs which may perhaps appear to be excessive, nevertheless, the coupling dimension is important to manage the bore size.
Phase 4: The SX228-6 coupling is rated to get a greatest unbalanced pace of three,400 RPM, over adequate to support the application velocity of one,150 RPM.
Phase 5: To determine in case the coupling will take care of the parallel misalignment, make use of the trig perform of tan 1?? = offset allowed for one inch = 0.0174
Multiply the 0.0174 x the distance involving disc packs or ??S?¡¥ dimension from the table on web page D-13, or 5.50 inches.
The allowable parallel offset is 0.0174 x five.50 = 0.096 inches. The utmost offset to the application is 1/32 inches (0.031), consequently this coupling can accommodate the parallel misalignment.
Note: It truly is normally advised to endeavor to set up the coupling at roughly 20% of the allowable misalignment. For this coupling the installer ought to attempt to achieve much better than 0.020 parallel misalignment with the time of set up. This will likely enable for that more misalignment that will occur as the result of tools settle and standard tools put on.

Industrial SU Variety
The SU Variety coupling has a single flex plane with two hubs along with a single disc pack. It is actually appropriate for angular and axial misalignment only. Two SU couplings are frequently mixed using a shaft
to produce a floating shaft coupling. The shaft may be hollow for long light excess weight floating shaft couplings.
Industrial SX Style
This can be the standard coupling sort that contains two hubs, a stock length spacer made to meet market conventional lengths, and two unitized disc packs. The coupling has two flex planes, 1 at each disc pack, enabling this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is accessible in 6 and eight bolt types and bore sizes up to 13 inches (330mm) to the greatest dimension. Customized spacer lengths may be manufactured to meet specific shaft separations required for particular applications. The SX coupling might be fitted with overload bushings to protect the disc packs in above torque circumstances and may act as an anti-flail gadget. SX couplings are assembled on the time of set up within the products the place the coupling will be in services.
Industrial DI Type
The DI Type coupling has a “Drop-In” spacer assembly that’s assembled in the factory. The coupling includes two hubs and a spacer assembly comprising of the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted towards the spacer and guard rings in the factory making use of the torque values proposed by Lovejoy for the disc pack bolts. With all the hubs mounted over the shafts, the whole disc pack assembly may be “Dropped In” place amongst the 2 hubs. The hubs are piloted to guarantee right centering of your spacer assembly. This piloting serves as an anti-flail characteristic and aids inside the coupling’s potential to meet the balance requirements mandated by API. This fashion coupling is intended to meet the stability and anti-flail prerequisites specified in API-610.
Oversized, or Jumbo, hubs can be found for use with the DI Sort coupling to allow for larger bore sizes on most DI coupling sizes. This permits to the use of smaller sized DI couplings in applications the place a smaller size coupling can nevertheless accommodate the application torque.
Industrial SXC Style
The SXC Variety may be the shut coupled variation from the SX Kind coupling. The SXC is just like the SX coupling in that the disc packs are connected once the coupling is set up. In the near coupled units, the hubs are turned inward and therefore are mounted within the spacer. Note that with the hubs inside the spacer, the maximum bore permitted inside the hub will probably be decreased. The SXC couplings can be employed with a single or the two hubs turned outward to allow the coupling to accommodate different shaft separations.
Industrial SXCS and SXCST Kinds
The SXCS and SXCST Forms have split spacers plus the disc packs may be serviced or removed without the need of moving the hubs around the shafts and without having moving the tools. The SXCS Sort has the bolts that connect the hubs to your split spacer installed from the ends of the couplings. The SXCST have the bolts set up from within the spacer pointing outward in direction of the hubs.
Added Types

Our disc packs are produced working with higher grade stainless steel
(AISI-301), ensuring large power, higher endurance to fatigue, and resistance to most environmental problems.
Disc couplings employ unitized disc packs with both six or 8 bolt styles. The 8 bolt style can transmit higher torque than the 6 bolt design and style, on the other hand, it’s not able to accommodate as considerably angular misalignment.
Couplings could be fitted with overload bushings to guard the disc pack throughout momentary torsional overloads.
Couplings are presented inside a assortment of configurations to match most applications. Furthermore, ?¡¥s engineering department can customize a coupling to meet a lot of particular specifications this kind of as shut coupled, drop-out centers, electrically insulated, vertical mounting, and safety couplings. A notable design and style offered by will be the lowered minute (DI Type) coupling that meets the anti-flail gadget requirements mandated in API-610 even though offering a minimal bodyweight and brief center of gravity to bearing distance.
The style and manufacture of disc couplings is integrated into a licensed Good quality System in accordance to ISO-9001 to fulfill the substantial quality prerequisites of customers.
Positive aspects on the Disc Coupling
Eliminates the have to have for lubrication and coupling servicing
Coupling can be inspected with no disassembly
Condition of disc packs may be inspected that has a strobe light while the machine is working
Note: It is actually not suggested that couplings be operated without having coupling guards.
Easy to assess equipment misalignment
Torsionally rigid devoid of any backlash
No sporting elements
\Resistance to harsh environments
Long existence when adequately sized and aligned
High energy density (greater torque to get a given outdoors diameter)
Supports the API-610 Regular as much as three,800 RPM
Unitized disc packs assure repeatability needed for meeting the balance and piloting demands as mandated by API-610
Accessible with Overload Bushings to safeguard the coupling from momentary torque overloads
Prevents the disc pack from staying plastically deformed
Allows for shorter BSE (shaft separation) due to the fact bolts is usually turned to encounter inward
Special orientation of bolts makes it possible for the bolts to get tightened using a torque wrench in place of nuts (Usual is always to tighten nuts with torque wrench)