Lovejoy offers flexible sleeves for S-Flex Endurance couplings in three designs: one-piece solid, one-piece split, and two-piece with retaining ring
The one-piece split design provides solutions for applications with
unique requirements where small shaft separations inhibit the installation
of a one-piece solid sleeve
Pre-molded teeth along the diameter of the sleeve engage with teeth of
the coupling flanges
No clamps or screws are needed to connect the flanges with the
flexible sleeve which securely lock together under torque for smooth
transmission of power
Torque is transmitted through shear loading of the sleeve
All three sleeve materials are highly elastic which permits the S-Flex
coupling to protect connected equipment from harmful shock loading,
vibration, and shaft misalignment
JE, JN, JES, JNS Sleeve Types
These sleeves feature a one-piece design molded in EPDM & Neoprene
rubber. In the case of JES & JNS Types, the one-piece design is split to
provide for ease of installation and removal.
Lovejoy offers flexible sleevse for S-Flex Endurance couplings in three designs: one-piece solid, one-piece split, and two-piece with retaining ring
The one-piece split design provides solutions for applications with
unique requirements where small shaft separations inhibit the installation
of a one-piece solid sleeve
Pre-molded teeth along the diameter of the sleeve engage with teeth of
the coupling flanges
No clamps or screws are needed to connect the flanges with the
flexible sleeve which securely lock together under torque for smooth
transmission of power
Torque is transmitted through shear loading of the sleeve
All three sleeve materials are highly elastic which permits the S-Flex
coupling to protect connected equipment from harmful shock loading,
vibration, and shaft misalignment
E, N Sleeve Types
These sleeves feature a two-piece design with retaining ring. The E Type
is molded in EPDM rubber and the N Type is molded in Neoprene. The two-
piece design is ideal for applications where there is difficulty in separating
the shafts of the driver and driven.
Lovejoy offers flexible sleeves for S-Flex Endurance couplings in three designs: one-piece solid, one-piece split, and two-piece with retaining ring
The one-piece split design provides solutions for applications with
unique requirements where small shaft separations inhibit the installation
of a one-piece solid sleeve
Pre-molded teeth along the diameter of the sleeve engage with teeth of
the coupling flanges
No clamps or screws are needed to connect the flanges with the
flexible sleeve which securely lock together under torque for smooth
transmission of power
Torque is transmitted through shear loading of the sleeve
All three sleeve materials are highly elastic which permits the S-Flex
coupling to protect connected equipment from harmful shock loading,
vibration, and shaft misalignment
H, HS Sleeve Types
These sleeves feature both a one-piece solid (H) and two-piece split
(HS) design and are molded of Hytrel. The sleeves in Hytrel material are
designed to transmit power for high torque applications. Because of the
design and the properties of the Hytrel molded sleeve, the H and HS
sleeves should not be used as direct replacements for EPDM or Neoprene
sleeves, and can only be used with S, TF, or SC flanges.
S Type Flanges with Keyway - Inch (Imperial) Bores
The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc
alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
Size 6J is made from cast iron.
J flanges are compatible with EPDM or Neoprene sleeves.
Each flange has a keyway and two set screws (one set screw over the key and
one at 90° to the keyway).
The J Type coupling consists of two flanges and one sleeve.
The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc
alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
Size 6J is made from cast iron.
J flanges are compatible with EPDM or Neoprene sleeves.
Each flange has a keyway and two set screws (one set screw over the key and
one at 90° to the keyway).
The J Type coupling consists of two flanges and one sleeve.
J Type Flanges without Keyway - Inch (Imperial) Bores
The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc
alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
Size 6J is made from cast iron.
J flanges are compatible with EPDM or Neoprene sleeves.
Each flange has a keyway and two set screws (one set screw over the key and
one at 90° to the keyway).
The J Type coupling consists of two flanges and one sleeve.
The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc
alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
Size 6J is made from cast iron.
J flanges are compatible with EPDM or Neoprene sleeves.
Each flange has a keyway and two set screws (one set screw over the key and
one at 90° to the keyway).
The J Type coupling consists of two flanges and one sleeve.
The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc
alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
Size 6J is made from cast iron.
J flanges are compatible with EPDM or Neoprene sleeves.
Each flange has a keyway and two set screws (one set screw over the key and
one at 90° to the keyway).
The J Type coupling consists of two flanges and one sleeve.
SC Type Spacer Coupling Hubs with Keyway, Standard Length - Inch (Imperial) Bores
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs with Keyway, Standard Length - Metric Bores
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs without Keyway, Standard Length - Inch (Imperial) Bores
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs with Rough Stock Bore, Standard Length
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs with Keyway, Short Length - Inch (Imperial) Bores
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs without Keyway, Short Length - Inch (Imperial) Bores
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
SC Type Spacer Coupling Hubs with Rough Stock Bore, Short Length
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
Specifically designed for the pump industry, this coupling accommodates industry standard as
well as special pump/motor separation
This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without
disturbing pump or motor mounting and alignment
The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
The center drop out section consists of two flanges and the flexible sleeve
The flange is bolted to the shaft hub with four hex head cap screws
The center drop out section can be removed by removing the hex head cap screws
Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the
screws and, if desired, turning of the pump/motor shafts
Once the hub is removed from the pump shaft, maintenance on the pump can be done without
disturbing equipment alignment
Model TF flanges are made from the same high-strength cast iron as the S flanges, but are designed to
accommodate the international standard Taper Lock bushing for easy installation and removal
TF Type flanges allow for mounting the bushing on the front (hub) side of the flange
TF flanges are available in sizes 6 through 16 and can be used with JE, JN, JES, JNS, E, N, H, and HS sleeve types.
TR (Rear Mount) Type Flanges for use with Taper-Lock® Bushings
TR flanges are similar to the TF style, but allow for the Taper Lock Bushing to be mounted and removed from
the reverse or serration side of the flange
The limited torque ratings of the Taper Lock Bushings allow TR flanges to only be used with EPDM or Neoprene sleeves
Different bushing sizes are used, so they have different maximum bores than the TF flanges
Sizes 6 through 16 are available
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