C Variety Flex-Flex Couplings
The C Variety coupling consists of two flex hubs, one sleeve and a single accessory kit consisting of seals and snap rings.
CFR Type Flex-Rigid Couplings
The CFR Sort coupling include 1 flex hub, a single rigid hub, 1 sleeve, 1 accessory kit consisting of seals and snap rings.
Options
Uncomplicated and economical variety of gear coupling
All steel sleves and hubs
Reinforced rubber seals with snap rings to hold lubricant in area
Readily available as vertical and horizontal couplings
Wide selection of special variations like full-flex, flex-rigid mill motor
Regular configurations are available in the shelf
Ordering Facts
Application: Driver and Driven.
Type and size of coupling, horizontal, vertical and so on.
Energy: Motor horspower or torque requirement.
Speed: Motor RPM or Driven RPM.
Distance in between shaft ends (BSE).
Shaft sizes.
C and CFR Form Couplings
Ordering Information
Puller Holes are normal on sizes 4 through twelve.
Puller Holes can be found for sizes 7/8 as a result of three.five at an extra charge.
The BSE (distance Amongst Shaft Ends) may well vary amongst G and G1.
Interference bores without any set screws are typical except if otherwise specified.
Inch bores and keyway tolerances conform to ANSI / AGMA 9002-B04.
For metric bores and keyway tolerances, talk to Engineering Part.
Bigger sizes can be found, please seek advice from Technical Support.

The FARR Coupling is used whenever a rigid connection is required between the low speed shaft of a gearbox and the head shaft of the conveyor, bucket elevator, mixer or any over-hung or suspended load. When sized appropriately, the FARR Coupling will carry the applica-tion torque, weight of gearbox, motor and swing plate. In the case of a mixer, it will carry the excess weight on the shaft and impeller, thrust forces and resulting bending moments.
Components of a FARR Coupling include male and female piloted hubs created from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft make contact with. Keeper plates are integrated for security. The two hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Normal coupling sizes possess a nominal torque range from 11,300 to 5,736,000 in-lbs. Larger sizes are available according to the application.
Functions
Heat Taken care of 4140 alloy steel
Male and Female pilots
Improved Torque Capability
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length by bore
Keeper Plate style and design
FARR Coupling Choice Guide
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 Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capability equal to or greater than the Design and style Torque from the Performance Data table.
E.Verify that the Bore capability in the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be utilised over the Reducer (Gearbox or Driver) shaft and the Female pilot hub to always be made use of about the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling choice.

The DILR and DILRA Kind coupling certainly are a direct substitute for a floating shaft type gear coupling. The DILR/DILRA is built to utilize the hubs already to the customer’s equipment. The DILR drop in substitute is going to be manufactured slightly shorter the DBFF and shims will be employed for ease of maintenance. The DILRA is adjustable making use of an SLD (Shaft Locking Gadget) to create axial or length changes. Customers with various pieces of gear with very similar length couplings can stock 1 spare spacer that can be utilized as being a replacement for far more than one particular coupling.
If the end user calls for rigid hubs be presented together with the coupling, a DIR or DIRA Sort coupling will likely be recommended and also the BSE (distance Amongst Shaft Ends) need to be specified.
Essential Information:
The end user should be prepared to supply the next information when contacting Technical Assistance:
Motor horse electrical power and velocity (consist of gearbox ratio ¡§C input and output).
Rigid hub sizes (if the customer is applying current F-Style rigid gear coupling hubs).
DBFF or distance concerning flange faces on the rigid hubs for DILR Variety.
BSE shaft separation may be specified for DIR Style.
Shaft sizes for rigid hubs DIR and DIRA Sort couplings.
For maximum bore sizes, consult with Gear Coupling Catalog pages F-Style rigid hubs.

DI-6 Sort Drop-In Center Industrial Coupling
The DI Variety coupling will be the common 6 bolt coupling with two hubs as well as a spacer assembly that could be put in or eliminated with no disturbing the products and hubs and devoid of removing the disc packs from your spacer assembly. Custom spacer lengths may be specified for unique applications. The coupling has two flex planes (1 at each and every disc pack) so it could possibly accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration may also accommodate axial misalignment inside the specified limits.
Functions
Designed to meet the API 610 Regular
Help for additional API needs accessible on request
Unitized disc pack
Infinite life if adequately aligned
Torsionally rigid without the need of any back lash
No have to have for lubrication or servicing
No sporting elements and large resistance to harsh environmental ailments
DI-8 Kind Drop-In Center Industrial Coupling
The DI Variety coupling would be the typical six bolt coupling with two hubs in addition to a spacer assembly that could be installed or eliminated without having disturbing the equipment and hubs and devoid of getting rid of the disc packs from the spacer assembly. The coupling has two flex planes (one particular at just about every disc pack) so it can accommodate parallel misalignment by the angular misalignment in every single disc pack. This configuration may even accommodate axial misalignment inside of the specified limits.
Functions
Built to meet the API 610 Normal
Assistance for supplemental API demands out there on request
Unitized disc pack
Infinite existence if adequately aligned
Torsionally rigid with out any back lash
No will need for lubrication or servicing
No sporting parts and high resistance to harsh environmental problems
Puller holes conventional with this design.

SXC-6 Variety Closed Coupled Industrial Coupling
The SXC-6 Sort will be the common 6 bolt coupling with two hubs, two disc packs along with a spacer. The hubs can each be turned inward to accommodate shut coupled applications or 1 hub could be turned outward to accommodate extra BSE?¡¥s (shaft separation). The coupling has
two flex planes (one particular at each and every disc pack) so it may possibly accommodate parallel misalignment by the angular misalignment in every disc pack. This configuration will also accommodate axial misalignment inside the specified limits.
Features
Unitized disc packs
Infinite life if appropriately aligned
Torsionally rigid without having any back lash
No want for lubrication or maintenance
No sporting components and substantial resistance to harsh environmental situations
Is usually combined with SU/SX hub for greater bore capacity
SXCS-6 Kind Closed Coupled Industrial Coupling
The SXCS Sort is definitely the conventional 6 bolt coupling with two hubs, two mounting rings, two disc packs along with a split spacer developed for ease of set up and maintenance. Custom spacer lengths is often specified for unique applications. The coupling has two flex planes (one at just about every disc pack) permitting it to accommodate parallel misalignment from the angular misalignment in every single disc pack. This configuration will even accommodate axial misalignment in the specified limits.
Functions
Unitized disc pack
Infinite lifestyle when effectively sized and aligned
Torsionally rigid without any back lash
No require for lubrication or maintenance
No sporting components and large resistance to harsh environmental problems
Disc packs can be replaced with out moving equipment
For more substantial sizes, refer to SXCST couplings
SXCST-6 Variety Closed Coupled Industrial Coupling
The SXCST Variety is usually a common six bolt coupling consisting of two hubs, two mounting rings, two disc packs in addition to a split spacer. Custom spacer lengths could be specified for exclusive applications. The coupling has two flex planes (1 at every disc pack) so it could possibly accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will even accommodate axial misalignment inside the specified limits.
Capabilities
Unitized disc pack
Infinite lifestyle 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 elements and substantial resistance to harsh environmental circumstances
Shut coupled
Split spacer style allows for ease of servicing and disc pack removal or substitute devoid of moving equipment.

SU-6 Sort Industrial Coupling
The SU Variety coupling is usually a 6 bolt single flex plane coupling which consists of two hubs and 1 disc pack kit. It truly is only suitable for that specified axial and angular misalignment and will not accommodate parallel misalignment. It truly is frequently combined with sound shafts for making floating shaft couplings. See Web page D-28 for a picture of an SXFS Kind floating shaft coupling.
Features
Unitized disc pack
Infinite life when thoroughly aligned
Torsionally rigid without any back lash
No require for lubrication or upkeep
No wearing parts and higher resistance to harsh environmental conditions
Larger sizes are available on request
SX-6 Type Industrial Coupling
The SX-6 Form can be a regular coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (one at each and every disc pack) so it could accommodate parallel misalignment by the angular misalignment in every disc pack. This configuration will even accommodate axial misalignment within the specified limits.
Attributes
Unitized disc pack
Infinite daily life when thoroughly sized and aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with no any back lash
No will need for lubrication or servicing
No wearing elements and higher resistance to harsh environmental disorders
Overload Bushings are available
SX-8 Sort Industrial Coupling
The SX-8 Kind is really a standard coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (1 at every disc pack) so it could possibly accommodate parallel misalignment from the angular misalignment in every single disc pack. This configuration may even accommodate axial misalignment inside of the specified limits.
Options
Unitized disc pack
Infinite lifestyle if correctly aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid devoid of any back lash
No will need for lubrication or servicing
No wearing parts and large resistance to harsh environmental conditions.

The following information and facts really should be provided to when placing an buy to guarantee the right collection of the disc coupling:
Application and kind of duty
Sort of driver (engine, motor, turbine, and so on.)
Speed and horsepower
Variety of driven
Shaft sizes and separation
Space limitations for key diameter and length
Style of fit (Interference match default, clearance match and shaft locking gadget preparation available on request)
Unique needs (vertical mounting, drop out center, flange mount, electrically insulated, API-610 as much as 3,800 RPM, shear pins, balancing, and so on.)
Angular misalignment, axial misalignment, and rated torque are all linked to the coupling’s capacity to accommodate application torque more than any time period of time. As illustrated in the following charts, once the application torque increases to 50% from the coupling capability, the capability in the coupling to accommodate angular misalignment to is lowered. The exact same holds real for your ability to accommodate axial misalignment.
Selection Procedure
1. Select the coupling style.
two. Select the driven machine support element SFA
3. Select the driving machine support factor SFD
Care should be taken when the driving machine is other than a common electric motor or turbine. Some engines will impose further fluctuations within the drive method and allowance should be produced accordingly. A torsional coupling might be required for diesel drives.

The next is usually a sample application utilised to illustrate the standard system for deciding on a Disc coupling. Any resemblance to any present 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 electric motor working at 1,150 RPM to drive a 3 cylinder multi stage reciprocating air compressor. The electrical motor features a 3-3/8 inch shaft that has a 7/8 inch keyway as well as the compressor features a 92mm shaft with a 25mm keyway. The shaft separation is approximately seven inches involving shaft ends with some ability to change the motor place. The shafts possess a parallel misalignment/offset of roughly 1/32 of an inch.
Stage 1: The initial stage should be to figure out what coupling sort is usually to be picked for this application. Because the SU Kind coupling only supports
a single flex plane, it may possibly only accommodate angular and axial misalignment, but not parallel misalignment. The next decision will be to appear at an SX or DI Style coupling. The 6 bolt SX Type will accommodate both parallel misalignment and the defined shaft separation. The dimension might be established from the variety torque plus the shaft diameters.
Phase 2: Next, determine the application torque and apply the services issue to determine the choice torque.The formula made use of to determine torque is as follows:
Application Torque ( in¡§Clb ) = ( HP x 63025 )/RPM
or Nm = ( KW x 9550)/RPM
Plugging inside the numbers through the application description:
Application Torque ( in-lbs ) =(HP x 63025)/RPM = (225 x 63025)/1150 = 12,331 in-lbs
Application Torque x Service Element = Assortment Torque
12,331 in-lbs x three.0 = 36,993 in-lbs
Stage 3: Make use of the SX coupling tables and note the SX 202-6 is rated at 40,700 in-lbs, a lot more than enough to take care of the assortment torque calculated in stage two. The SX202-6, however, is not going to assistance the 92mm shaft size. The subsequent larger dimension coupling, the SX228-6, will assistance the 92mm shaft size along with the shaft separation dimension (BSE) is six.88 inches, extremely near to the application?¡¥s preferred seven inch separation. The SX228-6 is rated at 62,000 in-lbs which may appear to be extreme, even so, the coupling size is critical to manage the bore dimension.
Stage 4: The SX228-6 coupling is rated to get a optimum unbalanced pace of 3,400 RPM, in excess of enough to support the application velocity of 1,150 RPM.
Phase 5: To determine in the event the coupling will deal with the parallel misalignment, utilize the trig function of tan 1?? = offset permitted for one inch = 0.0174
Multiply the 0.0174 x the distance in between disc packs or ??S?¡¥ dimension in the table on webpage D-13, or 5.50 inches.
The allowable parallel offset is 0.0174 x 5.50 = 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 really is normally proposed to make an effort to set up the coupling at approximately 20% in the allowable misalignment. For this coupling the installer really should make an effort to reach much better than 0.020 parallel misalignment on the time of installation. This may permit to the further misalignment that could take place because the consequence of tools settle and standard gear put on.

Industrial SU Kind
The SU Kind coupling includes a single flex plane with two hubs as well as a single disc pack. It can be appropriate for angular and axial misalignment only. Two SU couplings are frequently combined by using a shaft
for making a floating shaft coupling. The shaft is often hollow for long light fat floating shaft couplings.
Industrial SX Sort
This is often the regular coupling kind that includes two hubs, a stock length spacer developed to meet sector conventional lengths, and two unitized disc packs. The coupling has two flex planes, 1 at each disc pack, permitting this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is obtainable in six and 8 bolt styles and bore sizes as much as 13 inches (330mm) around the biggest dimension. Custom spacer lengths is usually manufactured to meet special shaft separations required for particular applications. The SX coupling might be fitted with overload bushings to safeguard the disc packs in in excess of torque situations and might act as an anti-flail gadget. SX couplings are assembled at the time of installation on the products in which the coupling might be in services.
Industrial DI Kind
The DI Style coupling has a “Drop-In” spacer assembly which is assembled with the factory. The coupling consists of two hubs along with a spacer assembly comprising from the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to your spacer and guard rings at the factory employing the torque values advisable by Lovejoy for the disc pack bolts. Using the hubs mounted about the shafts, the entire disc pack assembly might be “Dropped In” place amongst the 2 hubs. The hubs are piloted to make certain good centering of the spacer assembly. This piloting serves as an anti-flail feature and aids inside the coupling’s ability to meet the balance standards mandated by API. This fashion coupling is created to meet the balance and anti-flail demands specified in API-610.
Oversized, or Jumbo, hubs can be found for use using the DI Sort coupling to allow for greater bore sizes on most DI coupling sizes. This allows for that utilization of smaller sized DI couplings in applications where a smaller dimension coupling can even now accommodate the application torque.
Industrial SXC Variety
The SXC Kind is the close coupled variation of the SX Kind coupling. The SXC is just like the SX coupling in that the disc packs are attached once the coupling is installed. In the near coupled units, the hubs are turned inward and are mounted inside the spacer. Note that with the hubs within the spacer, the maximum bore permitted while in the hub will probably be decreased. The SXC couplings can be employed with 1 or both hubs turned outward to allow the coupling to accommodate diverse shaft separations.
Industrial SXCS and SXCST Kinds
The SXCS and SXCST Kinds have split spacers as well as disc packs is usually serviced or eliminated with no moving the hubs over the shafts and without having moving the products. The SXCS Sort has the bolts that connect the hubs to your split spacer installed in the ends from the couplings. The SXCST have the bolts installed from inside the spacer pointing outward in the direction of the hubs.
More Types

Our disc packs are manufactured applying high grade stainless steel
(AISI-301), guaranteeing substantial power, high endurance to fatigue, and resistance to most environmental circumstances.
Disc couplings make use of unitized disc packs with both six or eight bolt types. The 8 bolt design can transmit greater torque compared to the 6 bolt design, nonetheless, it truly is not able to accommodate as a lot angular misalignment.
Couplings can be fitted with overload bushings to safeguard the disc pack in the course of momentary torsional overloads.
Couplings are presented within a number of configurations to match most applications. Additionally, ?¡¥s engineering division can customize a coupling to meet many specific requirements such as close coupled, drop-out centers, electrically insulated, vertical mounting, and security couplings. A notable design and style made available by will be the diminished second (DI Variety) coupling that meets the anti-flail gadget requirements mandated in API-610 although giving a minimal fat and short center of gravity to bearing distance.
The design and manufacture of disc couplings is integrated right into a licensed Top quality Process in accordance to ISO-9001 to fulfill the substantial excellent needs of buyers.
Rewards on the Disc Coupling
Eliminates the need to have for lubrication and coupling maintenance
Coupling may be inspected without having disassembly
Condition of disc packs is usually inspected having a strobe light whilst the machine is operating
Note: It truly is not advisable that couplings be operated without having coupling guards.
Easy to assess products misalignment
Torsionally rigid with out any backlash
No wearing elements
\Resistance to harsh environments
Long lifestyle when effectively sized and aligned
High electrical power density (greater torque to get a provided outdoors diameter)
Supports the API-610 Normal as much as 3,800 RPM
Unitized disc packs ensure repeatability needed for meeting the stability and piloting requirements as mandated by API-610
Offered with Overload Bushings to safeguard the coupling from momentary torque overloads
Prevents the disc pack from currently being plastically deformed
Allows for shorter BSE (shaft separation) because bolts could be turned to encounter inward
Special orientation of bolts permits the bolts for being tightened using a torque wrench in lieu of nuts (Standard should be to tighten nuts with torque wrench)