Category Archives: gearboxes-agricultural

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January 29, 2021

C Style Flex-Flex Couplings
The C Type coupling consists of two flex hubs, one sleeve and one accessory kit consisting of seals and snap rings.
CFR Variety Flex-Rigid Couplings
The CFR Form coupling include 1 flex hub, a single rigid hub, a single sleeve, one particular accessory kit consisting of seals and snap rings.
Features
Simple and reasonably priced sort of gear coupling
All steel sleves and hubs
Reinforced rubber seals with snap rings to hold lubricant in spot
Offered as vertical and horizontal couplings
Wide assortment of distinctive variations including full-flex, flex-rigid mill motor
Conventional configurations can be found from the shelf
Ordering Info
Application: Driver and Driven.
Style and size of coupling, horizontal, vertical and so on.
Energy: Motor horspower or torque requirement.
Speed: Motor RPM or Driven RPM.
Distance amongst shaft ends (BSE).
Shaft sizes.
C and CFR Type Couplings
Ordering Details
Puller Holes are standard on sizes four as a result of 12.
Puller Holes can be found for sizes 7/8 through three.5 at an extra charge.
The BSE (distance Among Shaft Ends) may vary among G and G1.
Interference bores without any set screws are common except if otherwise specified.
Inch bores and keyway tolerances conform to ANSI / AGMA 9002-B04.
For metric bores and keyway tolerances, seek the advice of Engineering Segment.
Bigger sizes can be found, please consult Technical Help.

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January 29, 2021

Variables Affecting Assortment
The following is actually a checklist on the information important to help in producing a coupling selection. Not all of these objects will come into perform in all variety processes. These items include, but are not limited to:
Application related:
Application facts
Type of motor and driven equipment
Motor horsepower or KW
Operating/coupling pace
Shaft sizes and separation
Room and dimension constraints
Atmosphere (temperature, chemicals, etc)
Stability needs
Special modifications
Methods In Picking A Gear Coupling
Refer towards the gear coupling specifications charts displayed with every kind of coupling throughout the Gear Coupling Goods segment of this catalog. The pictures and charts provide visualization, specs, and dimensional information for its wide variety of gear coupling solutions. Normally begin with an F Sort flanged gear coupling or maybe a C Kind steady sleeve gear coupling (page G-16) and proceed from there.
Step 1: Assessment the gear coupling series and kind as picked to make certain the variety
meets application necessities.
Phase two: Figure out the nominal application torque in in-lbs by using the next formula:
Application Torque ( in-lb ) = (HP x 63025)/RPM
Or Nm = (KW x 9550)/RPM
Phase three: Evaluation the Application Support Element chart for that services element variety associated together with the application in which this coupling will likely be employed. Multiply the application torque from the application services factor to determine the total torque expected for your coupling selection.
Step 4: Examine the needed complete torque value together with the nominal torque capability
listed while in the Gear Coupling Choice chart to the wanted coupling sort.
Stage five: Examine that the maximum bore dimension as well as the greatest RPM of the coupling
sort selected to make certain the coupling will meet these application requirements.
Step six: Note any particular needs such as the BSE dimension for floating shaft and spacer forms, shear pin torque, slide coupling information, mill motor tapered shaft data, and any other pertinent information and facts.

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January 28, 2021

The FARR Coupling is made use of whenever a rigid connection is needed concerning the lower pace shaft of the gearbox and also 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, fat of gearbox, motor and swing plate. During the situation of the mixer, it’ll carry the fat in the shaft and impeller, thrust forces and resulting bending moments.
Components of a FARR Coupling include male and female piloted hubs made from 4140 alloy steel. The hubs are extended to assure 80% hub to shaft contact. Keeper plates are incorporated for safety. The two hubs are assembled with Grade eight bolts and Grade À Prevailing Torque nuts. Conventional coupling sizes possess a nominal torque range from eleven,300 to 5,736,000 in-lbs. Greater sizes can be found dependant upon the application.
Options
Heat Handled 4140 alloy steel
Male and Female pilots
Enhanced Torque Capacity
Grade eight Bolts / Grade ?¡ãC?¡À Prevailing Torque Nuts
Extended length as a result of bore
Keeper Plate style and design
FARR Coupling Selection Guide
A. Obtain The next Information and facts:
Application
Horsepower & RPM
Gearbox (Reducer) Ratio
Output Pace
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 Design and style Torque by applying 2.0 Service Factor to application torque.
D.Select coupling with a torque capacity equal to or greater than the Layout Torque from the Performance Data table.
E.Verify that the Bore capability of the coupling will meet the application shaft requirements.
F.The Male pilot hub to always be employed about the Reducer (Gearbox or Driver) shaft plus the Female pilot hub to always be made use of to the Head (Driven) shaft.
G.Drive System Analysis must be performed by Application Engineering to verify coupling choice.

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January 27, 2021

The DILR and DILRA Style coupling really are a direct substitute to get a floating shaft design gear coupling. The DILR/DILRA is designed to employ the hubs by now to the customer’s equipment. The DILR drop in replacement will likely be produced slightly shorter that the DBFF and shims will likely be utilised for ease of servicing. The DILRA is adjustable applying an SLD (Shaft Locking Device) to produce axial or length changes. Shoppers with many pieces of equipment with equivalent length couplings can stock one particular spare spacer that may be applied like a replacement for extra than one coupling.
If the end user necessitates rigid hubs be presented together with the coupling, a DIR or DIRA Variety coupling might be encouraged and the BSE (distance Between Shaft Ends) should be specified.
Required Data:
The finish consumer needs to be ready to provide the following information and facts when contacting Technical Support:
Motor horse energy and pace (involve gearbox ratio ¡§C input and output).
Rigid hub sizes (when the purchaser is working with existing F-Style rigid gear coupling hubs).
DBFF or distance amongst flange faces on the rigid hubs for DILR Type.
BSE shaft separation is often specified for DIR Type.
Shaft sizes for rigid hubs DIR and DIRA Style couplings.
For greatest bore sizes, check with Gear Coupling Catalog pages F-Style rigid hubs.

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January 27, 2021

DI-6 Type Drop-In Center Industrial Coupling
The DI Type coupling could be the regular 6 bolt coupling with two hubs in addition to a spacer assembly that can be installed or eliminated without the need of disturbing the tools and hubs and without having removing the disc packs in the spacer assembly. Customized spacer lengths is usually specified for specific applications. The coupling has two flex planes (one particular at every single disc pack) so it could possibly accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration may even accommodate axial misalignment inside of the specified limits.
Attributes
Designed to meet the API 610 Common
Help for further API demands offered on request
Unitized disc pack
Infinite existence if adequately aligned
Torsionally rigid without any back lash
No want for lubrication or upkeep
No sporting elements and substantial resistance to harsh environmental situations
DI-8 Variety Drop-In Center Industrial Coupling
The DI Type coupling may be the typical six bolt coupling with two hubs as well as a spacer assembly that can be installed or removed with out disturbing the gear and hubs and without getting rid of the disc packs from the spacer assembly. The coupling has two flex planes (a single at just about every disc pack) so it may possibly accommodate parallel misalignment by the angular misalignment in every disc pack. This configuration may also accommodate axial misalignment within the specified limits.
Characteristics
Built to meet the API 610 Typical
Assistance for additional API requirements offered on request
Unitized disc pack
Infinite life if correctly aligned
Torsionally rigid without having any back lash
No need to have for lubrication or maintenance
No wearing parts and substantial resistance to harsh environmental circumstances
Puller holes typical with this particular design.

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January 27, 2021

SXC-6 Variety Closed Coupled Industrial Coupling
The SXC-6 Type would be the standard 6 bolt coupling with two hubs, two disc packs and also a spacer. The hubs can each be turned inward to accommodate near coupled applications or 1 hub might be turned outward to accommodate added BSE?¡¥s (shaft separation). The coupling has
two flex planes (one at every single disc pack) so it may possibly accommodate parallel misalignment by the angular misalignment in just about every disc pack. This configuration will also accommodate axial misalignment inside the specified limits.
Characteristics
Unitized disc packs
Infinite daily life if thoroughly aligned
Torsionally rigid without any back lash
No need to have for lubrication or maintenance
No sporting parts and large resistance to harsh environmental disorders
May be combined with SU/SX hub for increased bore capability
SXCS-6 Form Closed Coupled Industrial Coupling
The SXCS Form would be the typical 6 bolt coupling with two hubs, two mounting rings, two disc packs along with a split spacer created for ease of installation and upkeep. Custom spacer lengths might be specified for exclusive applications. The coupling has two flex planes (a single at each and every disc pack) allowing it to accommodate parallel misalignment from the angular misalignment in each disc pack. This configuration may even accommodate axial misalignment in the specified limits.
Characteristics
Unitized disc pack
Infinite daily life when adequately sized and aligned
Torsionally rigid with no any back lash
No have to have for lubrication or maintenance
No sporting elements and higher resistance to harsh environmental circumstances
Disc packs is often replaced with out moving gear
For greater sizes, refer to SXCST couplings
SXCST-6 Sort Closed Coupled Industrial Coupling
The SXCST Form is actually a normal six bolt coupling consisting of two hubs, two mounting rings, two disc packs and also a split spacer. Customized spacer lengths might be specified for distinctive applications. The coupling has two flex planes (one particular at every disc pack) so it could possibly accommodate parallel misalignment by the angular misalignment in every disc pack. This configuration may also accommodate axial misalignment inside the specified limits.
Characteristics
Unitized disc pack
Infinite daily life when correctly sized and aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with out any back lash
No want for lubrication or upkeep
No sporting parts and higher resistance to harsh environmental ailments
Close coupled
Split spacer design and style permits for ease of maintenance and disc pack elimination or substitute without moving products.

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January 26, 2021

SU-6 Sort Industrial Coupling
The SU Kind coupling is really a six bolt single flex plane coupling which includes two hubs and a single disc pack kit. It really is only ideal to the specified axial and angular misalignment and does not accommodate parallel misalignment. It truly is often combined with solid shafts to create floating shaft couplings. See Web page D-28 to get a picture of an SXFS Type floating shaft coupling.
Attributes
Unitized disc pack
Infinite lifestyle when effectively aligned
Torsionally rigid without the need of any back lash
No require for lubrication or upkeep
No sporting components and high resistance to harsh environmental conditions
Greater sizes can be found on request
SX-6 Form Industrial Coupling
The SX-6 Style can be a normal coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (a single at each disc pack) so it may accommodate parallel misalignment from the angular misalignment in every single disc pack. This configuration may even accommodate axial misalignment inside of the specified limits.
Capabilities
Unitized disc pack
Infinite life when effectively sized and aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with out any back lash
No need for lubrication or upkeep
No sporting parts and large resistance to harsh environmental ailments
Overload Bushings are available
SX-8 Kind Industrial Coupling
The SX-8 Variety is usually a common coupling with two hubs, a spacer, and two disc pack kits. The coupling has two flex planes (1 at just about every disc pack) so it could accommodate parallel misalignment by the angular misalignment in just about every disc pack. This configuration may also accommodate axial misalignment inside of the specified limits.
Characteristics
Unitized disc pack
Infinite existence if properly aligned
Accommodates angular, axial, and parallel misalignment
Torsionally rigid with no any back lash
No have to have for lubrication or servicing
No wearing parts and higher resistance to harsh environmental conditions.

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January 26, 2021

The next details ought to be supplied to when placing an order to make sure the right collection of the disc coupling:
Application and form of duty
Variety of driver (engine, motor, turbine, and so forth.)
Speed and horsepower
Type of driven
Shaft sizes and separation
Room limitations for main diameter and length
Variety of match (Interference fit default, clearance match and shaft locking gadget preparation obtainable on request)
Particular specifications (vertical mounting, drop out center, flange mount, electrically insulated, API-610 as much as 3,800 RPM, shear pins, balancing, etc.)
Angular misalignment, axial misalignment, and rated torque are all relevant towards the coupling’s capability to accommodate application torque more than any period of time. As illustrated during the following charts, when the application torque increases to 50% on the coupling capability, the means of your coupling to accommodate angular misalignment to is decreased. Precisely the same holds true for the capability to accommodate axial misalignment.
Selection Process
one. Select the coupling kind.
two. Select the driven machine service element SFA
3. Select the driving machine service factor SFD
Care really should be taken when the driving machine is other than a normal electric motor or turbine. Some engines will impose further fluctuations over the drive procedure and allowance need to be made accordingly. A torsional coupling could be essential for diesel drives.

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January 26, 2021

The next is really a sample application made use of to illustrate the normal process for selecting 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:
A company includes a compressor application using a 225 horsepower electric motor running at 1,150 RPM to drive a 3 cylinder multi stage reciprocating air compressor. The electric motor has a 3-3/8 inch shaft using a 7/8 inch keyway plus the compressor includes a 92mm shaft by using a 25mm keyway. The shaft separation is approximately seven inches involving shaft ends with some capability to adjust the motor spot. The shafts possess a parallel misalignment/offset of roughly 1/32 of an inch.
Step one: The first stage is usually to establish what coupling form will be to be selected for this application. Because the SU Variety coupling only supports
just one flex plane, it may possibly only accommodate angular and axial misalignment, but not parallel misalignment. The subsequent selection can be to look at an SX or DI Sort coupling. The six bolt SX Form will accommodate each parallel misalignment and the defined shaft separation. The size will probably be determined by the selection torque as well as shaft diameters.
Step two: Upcoming, determine the application torque and apply the service aspect to calculate the selection torque.The formula utilised to determine torque is as follows:
Application Torque ( in¡§Clb ) = ( HP x 63025 )/RPM
or Nm = ( KW x 9550)/RPM
Plugging from the numbers in the application description:
Application Torque ( in-lbs ) =(HP x 63025)/RPM = (225 x 63025)/1150 = 12,331 in-lbs
Application Torque x Service Element = Selection Torque
12,331 in-lbs x 3.0 = 36,993 in-lbs
Stage 3: Use the SX coupling tables and note that the SX 202-6 is rated at forty,700 in-lbs, greater than ample to manage the choice torque calculated in phase 2. The SX202-6, having said that, will not assistance the 92mm shaft size. The next larger dimension coupling, the SX228-6, will assistance the 92mm shaft dimension and also the shaft separation dimension (BSE) is six.88 inches, quite near to the application?¡¥s sought after 7 inch separation. The SX228-6 is rated at 62,000 in-lbs which could appear to be extreme, on the other hand, the coupling size is necessary to manage the bore dimension.
Stage four: The SX228-6 coupling is rated for any greatest unbalanced velocity of 3,400 RPM, over adequate to assistance the application pace of 1,150 RPM.
Step 5: To find out when the coupling will handle the parallel misalignment, make use of the trig perform of tan 1?? = offset permitted for 1 inch = 0.0174
Multiply the 0.0174 x the distance concerning disc packs or ??S?¡¥ dimension from the table on page D-13, or five.50 inches.
The allowable parallel offset is 0.0174 x 5.50 = 0.096 inches. The maximum offset for that application is 1/32 inches (0.031), as a result this coupling can accommodate the parallel misalignment.
Note: It truly is generally encouraged to make an effort to set up the coupling at roughly 20% of the allowable misalignment. For this coupling the installer need to endeavor to achieve greater than 0.020 parallel misalignment with the time of set up. This will permit for that further misalignment that may take place since the end result of products settle and basic products dress in.

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January 25, 2021

Industrial SU Sort
The SU Kind coupling has a single flex plane with two hubs as well as a single disc pack. It truly is suitable for angular and axial misalignment only. Two SU couplings are often mixed that has a shaft
to create a floating shaft coupling. The shaft is often hollow for prolonged light weight floating shaft couplings.
Industrial SX Style
This really is the conventional coupling style that contains two hubs, a stock length spacer developed to meet business standard lengths, and two unitized disc packs. The coupling has two flex planes, 1 at every disc pack, making it possible for this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in six and eight bolt types and bore sizes as much as 13 inches (330mm) on the largest dimension. Customized spacer lengths is usually manufactured to meet special shaft separations essential for unique applications. The SX coupling may be fitted with overload bushings to guard the disc packs in over torque disorders and might act as an anti-flail device. SX couplings are assembled in the time of installation within the tools exactly where the coupling will be in service.
Industrial DI Style
The DI Type coupling has a “Drop-In” spacer assembly which is assembled in the factory. The coupling includes two hubs as well as a spacer assembly comprising of your spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to the spacer and guard rings with the factory working with the torque values advised by Lovejoy for your disc pack bolts. Together with the hubs mounted within the shafts, the whole disc pack assembly is often “Dropped In” area in between the 2 hubs. The hubs are piloted to make sure proper centering on the spacer assembly. This piloting serves as an anti-flail attribute and aids during the coupling’s potential to meet the balance requirements mandated by API. This style coupling is developed to meet the stability and anti-flail specifications specified in API-610.
Oversized, or Jumbo, hubs can be found for use using the DI Form coupling to permit for larger bore sizes on most DI coupling sizes. This enables for the utilization of smaller sized DI couplings in applications where a smaller dimension coupling can still accommodate the application torque.
Industrial SXC Form
The SXC Style may be the near coupled variation of your SX Style coupling. The SXC is much like the SX coupling in the disc packs are attached when the coupling is installed. While in the shut coupled units, the hubs are turned inward and therefore are mounted within the spacer. Note that together with the hubs inside the spacer, the maximum bore permitted within the hub will likely be decreased. The SXC couplings could be applied with one particular or the two hubs turned outward to permit the coupling to accommodate various shaft separations.
Industrial SXCS and SXCST Varieties
The SXCS and SXCST Kinds have split spacers and the disc packs might be serviced or eliminated without moving the hubs about the shafts and devoid of moving the equipment. The SXCS Style has the bolts that connect the hubs on the split spacer put in in the ends in the couplings. The SXCST possess the bolts installed from inside the spacer pointing outward in direction of the hubs.
Extra Types