Lovejoy, Inc. : Products : Lovejoy / Sier-Bath Gear Type Couplings : Flanged Sleeve (F, FRR, FARR, FMM, FFS, FSPCR, FSL FSLX, FSHP, FSHPB, FVX, FLEF, FLA, FLAFR, FLAMM, FLHD, FLHDFR, FA, FAFR, & FAMM Types)

Standard F Type

Double engagement (‘F’ flex-flex) for parallel and angular misalignment
Single engagement (‘FFR’ flex-rigid) accommodates angular misalignment only and is ideal for floating shaft applications
Industry standard flange bolt patterns
FHD Type standard for sizes 10 through 30 (other sizes available
upon request)

Rigid-Rigid FRR Type

Designed for connecting two rigidly mounted shafts with no misalignment capability

Alloy Rigid-Rigid FARR Type

Longer piloted hubs maintain rigidity and concentricity
Used for cantilevered loads such as gear boxes that hang off conveyor systems
Alloy steel available for greater strength (FARR)

Mill Motor FMM Type

First hub designed with longer universal hub on one end to accommodate straight or tapered shafts
Second hub bored to customer specifications
Standard design accommodates AISE Mill Motor frame sizes
Sleeves and second hub are standard

Floating Shaft FFS Type

Two flex-rigid couplings connected by an intermediate shaft
Increased ability to accommodate parallel misalignment
Accommodate longer shaft separations
Standard construction with rigid hubs on outboard (equipment) shafts, flex on inboard (floating) shaft
Rigid hubs inboard (on floating shaft) available upon request

Spacer FSPCR Type

Drop-out spacer design allows for ease of maintenance without disturbing the equipment mountings
Lightweight construction reduces load on equipment bearings

Slide FSL and FSLX Types

Allows for a predetermined amount of axial slide
Longer hubs and sleeves available to accommodate additional slide capacity
Custom slide lengths available

Shear Pin FSHP and FSHPB Types

Designed to limit and protect equipment against excessive torque or sudden shock loads
Shear pins designed and manufactured to shear at predetermined torque loads
Pins are inserted in hardened bushings to minimize wear
Easy to install new pins
Available with bearing support to maintain alignment after the pins shear

Standard Vertical FVX Type

Designed for use with vertical shafts
Vertical kit prevents shafts from contacting each other
Maintains ability to accommodate misalignment
Available in vertical floating shaft design

Limited End Float FLEF Type

Designed for equipment with sleeve bearings
Designed to limit axial travel of the rotor in the motor and prevent the rotor from coming into contact and damaging sleeve bearings

All AISI 4140 Alloy Steel Design
No rubber seals – metal labyrinth design
Standard with exposed bolts
Fully interchangeable with Industry standards
Ideal for higher temperature applications

Standard FLA Type

Double engagement (‘F’ flex-flex) for parallel and angular misalignment
Industry standard flange bolt patterns

Single Engagement FLAFR Type

Single engagement (‘FFR’ flex-rigid) accommodates angular misalignment only and is ideal for floating shaft applications

Mill Motor FLAMM Type

First hub designed with longer universal hub on one end to accommodate straight or tapered shafts
Second hub bored to customer specifications
Standard design accommodates AISE Mill Motor frame sizes

Sleeves and second hub are standard

Standard FLHD Type

Piloted Sleeves
Exposed Bolts Standard
Excellent for high torque at low speeds
Bore range from 7.75 inches up to 44.88 inches
Torque capacity up to 54,390,000 in-lbs
Alloy Steel (AISI 4140) construction available

Single Engagement FLHDFR Type

Capacities the same as FHD

Ideal for heavy duty floating shaft applications

All alloy steel construction
Fully molded seals maintain lubricant retention under misalignment conditions
Exposed bolts are standard, shrouded bolts are optional

Standard FA Type

Double engagement (‘F’ flex-flex) for parallel and angular misalignment
Industry standard flange bolt patterns

Single engagement FAFR Type

Single engagement (‘FFR’ Flex-Rigid) accommodates angular misalignment only and is ideal for floating shaft applications

Mill Motor FAMM Type

First hub designed with longer universal hub on one end to accommodate straight or tapered shafts
Second hub bored to customer specifications
Standard design accommodates AISE Mill Motor frame sizes

Sleeves and second hub are standard

Stainless Steel
High Speed RAHS Type
Brake Drum FBD and FBW Types
Insulated FI Type
Vertical Floating Shaft FVFS Type
F Style Cutout Shifter FCS Type

See also: High Speed Gear Couplings

Lovejoy engineering has created a large number of custom application gear couplings. Challenge us with your applications and let us serve your needs

Note: Performance Data below is for Standard F Type only. Please download catalog for performance data on other flanged sleeve type couplings.

	Nominal		Max Speed		ID1-ID2				Weight		Axial		Angular
	Torque		Unbal	Bal	Max Bore		Rough Stock Bore				Misalignment		Misalignment
Size	in-lb	Nm	RPM	RPM	in	mm	in	mm	lbs	kg	in	mm	Degrees
1	7,600	850	6,000	9,000	1.625	42	0.44	11	9	4	0.056	1.4	1.5° per Mesh
1.5	18,900	2140	5,500	8,250	2.125	56	0.69	18	19	9	0.060	1.5	1.5° per Mesh
2	31,500	3560	5,000	7,500	2.750	73	0.94	24	34	15	0.085	2.2	1.5° per Mesh
2.5	56,700	6410	4,400	6,600	3.250	85	1.44	37	54	25	0.105	2.7	1.5° per Mesh
3	94,500	10700	4,000	6,000	4.000	107	1.44	37	80	36	0.115	2.9	1.5° per Mesh
3.5	151,200	17100	3,500	5,250	4.625	125	1.81	46	130	59	0.130	3.3	1.5° per Mesh
4	220,500	24900	3,000	4,500	5.375	145	2.44	62	190	86	0.150	3.8	1.5° per Mesh
4.5	302,400	34200	2,700	4,050	6.000	165	3.00	76	250	114	0.175	4.4	1.5° per Mesh
5	434,700	49100	2,500	3,750	6.500	180	3.00	76	380	173	0.200	5.1	1.5° per Mesh
5.5	573,300	64800	2,200	3,300	7.500	200	4.00	101	520	236	0.220	5.6	1.5° per Mesh
6	749,700	84700	2,100	3,150	8.250	225	4.00	101	650	295	0.120	3.0	1.5° per Mesh
7	1,008,000	113900	2,000	3,000	9.500	255	5.00	127	950	431	0.135	3.4	1.5° per Mesh
8	1,323,000	149500	1,900	2,850	11.500	310	6.00	152	1,560	708	0.160	4.1	1.5° per Mesh
9	1,827,000	206400	1,800	2,700	12.500	340	6.00	177	2,015	915	0.165	4.2	1.5° per Mesh

For Continuous Sleeve Design: see Continuous Sleeve
For Nylon Sleeve (no lubricant coupling): see Nylon Sleeve
For High Speed: see High Performance Gear Couplings
For Large Jaw Coupling: see H Type
For “Infinite Life”: see Disc Couplings
Or, for other coupling types: see Coupling Preselection Guide

Flanged Sleeve (F, FRR, FARR, FMM, FFS, FSPCR, FSL FSLX, FSHP, FSHPB, FVX, FLEF, FLA, FLAFR, FLAMM, FLHD, FLHDFR, FA, FAFR, & FAMM Types)

Catalogs

Installation Instructions