Couplings for 15/16" Shafts

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	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter	Show

15/16"

	For Shaft Diameter For Shaft Diameter	Hide

	For Shaft Type For Shaft Type

	Keyed

	Material Material

Iron

Steel

	OD OD

	For Motion Type For Motion Type

Forward/Reverse

Start/Stop

Continuous

	Construction Construction

	Multipiece

	Length Length

	For Shaft Misalignment Type For Shaft Misalignment Type


Angular	Parallel

Axial

	Shaft Mount Type Shaft Mount Type

	Set Screw

	Set Screw Material Set Screw Material

Steel

	Shaft Coupling Type Shaft Coupling Type

Flexible

	Number of Set Screws Included Number of Set Screws Included

	Component Component

Hub

	Set Screw Type Set Screw Type

	Hex Socket

	Number of Teeth Number of Teeth

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	OD with Cover OD with Cover

	Set Screw Finish Set Screw Finish

Black Oxide

	Fabrication Fabrication

Sintered

	Keyway Depth Keyway Depth

1/8"

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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27 Products

About Shaft Couplings

Hubs and Spider Shown Assembled

(Each Component Sold Separately)

Hubs, Split Spider, and Retaining Ring Shown Assembled

(Each Component Sold Separately)

Each hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place. Also known as Lovejoy® couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.

A complete coupling consists of two hubs and one spider, or two hubs, one split spider, and one retaining ring (all components sold separately). Split spiders are easier to install and replace than standard spiders because there’s no need for tools or removing your hubs. Twist-lock them in place using a retaining ring.

Buna-N spiders provide good vibration damping and chemical resistance. Hytrel spiders provide fair vibration damping and excellent chemical resistance. Polyurethane spiders and split spiders provide fair vibration damping and good chemical resistance.

For technical drawings and 3-D models, click on a part number.

Iron Hubs and Buna-N Rubber Spiders

							Buna-N Rubber Spiders
Iron Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	000000	9,000	140	0.015"	1°	-40° to 212°	0000000	000000
2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	9,000	140	0.015"	1°	-40° to 212°	0000000	00000
2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	7,000	315	0.015"	1°	-40° to 212°	0000000	00000
3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	7,000	315	0.015"	1°	-40° to 212°	0000000	00000
4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	5,000	790	0.015"	1°	-40° to 212°	0000000	00000

Iron Hubs and Hytrel Rubber Spiders

							Hytrel Rubber Spiders
Iron Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	000000	3,600	400	0.015"	0.5°	-55° to 245°	0000000	000000
2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	400	0.015"	0.5°	-55° to 245°	0000000	00000
2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	790	0.015"	0.5°	-55° to 245°	0000000	000000
3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	790	0.015"	0.5°	-55° to 245°	0000000	000000
4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	2,265	0.015"	0.5°	-55° to 245°	0000000	000000

Iron Hubs and Polyurethane Spiders

							Polyurethane Spiders
Iron Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	000000	3,600	210	0.015"	1°	-30° to 160°	0000000	000000
2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	210	0.015"	1°	-30° to 160°	0000000	00000
2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	475	0.015"	1°	-30° to 160°	0000000	00000
3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	475	0.015"	1°	-30° to 160°	0000000	00000
4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	3,600	1,185	0.015"	1°	-30° to 160°	0000000	000000

Iron Hubs, Polyurethane Split Spiders, and 347 Stainless Steel Retaining Rings

							Polyurethane Split Spiders
Iron Hubs									Misalignment Capability					347 Stainless Steel Retaining Rings
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each		Each
2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	000000	9,200	670	0.03"	2°	-30° to 200°	0000000	000000	0000000	000000
2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	9,200	670	0.03"	2°	-30° to 200°	0000000	00000	0000000	00000
2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	7,700	1,110	0.03"	2°	-30° to 200°	0000000	00000	0000000	00000
3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	7,700	1,110	0.03"	2°	-30° to 200°	0000000	00000	0000000	00000
4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	15/16"	0000000	00000	5,900	2,180	0.03"	2°	-30° to 200°	0000000	000000	0000000	000000

High-Speed Vibration-Damping Flexible Shaft Couplings

Components of a Coupling Shown Assembled

(Each Component Sold Separately)

Use these gear-shaped couplings for high-speed and high-torque applications. A rubber center allows flexing so couplings can take on multiple types of misalignment while damping vibration and shock. With no metal-to-metal contact, there’s no need for lubrication. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.

A complete coupling consists of two hubs and one center (each component sold separately).

Hubs have a keyway, except hubs for 1/4" and 3/8" shaft dia. do not have a keyway.

							Centers
Hubs									Misalignment Capability
O'all Lg.	OD	For Motion Type	Material	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Axial	Temp. Range, °F	Material		Each
2 7/8"	3 1/4"	Continuous	Sintered Steel	15/16"	0000000	000000	7,600	240	0.015"	1°	0.125"	-30° to 275°	TPE Rubber	0000000	000000
3 5/16"	4"	Continuous	Sintered Steel	15/16"	0000000	00000	6,000	450	0.015"	1°	0.125"	-30° to 275°	TPE Rubber	0000000	00000

High-Torque Flexible Shaft Couplings

Components of a Coupling Shown Assembled

(Each Component Sold Separately)

With a rugged roller-chain design, these couplings provide excellent torque and angular misalignment capacities. Lubrication is required. Fasten to your shaft by tightening the set screws, which bite into the shaft to hold it.

A complete coupling consists of two hubs and one roller chain (each component sold separately). Complete couplings meet ANSI B29.23M-1995.

Optional covers retain grease lubrication and provide protection from abrasion and corrosion.

For technical drawings and 3-D models, click on a part number.

							Steel Roller Chain
Steel Hubs									Misalignment Capability		Roller Chain				Orange Nylon Plastic Covers
O'all Lg.	OD	OD with Cover	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	No.	Standard		Each		Each
2 9/16"	3 3/64"	4"	Continuous	15/16"	0000000	000000	5,000	2,410	0.012"	2°	40-2	ANSI	0000000	000000	0000000	0000000

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About Shaft Couplings

Set Screw Flexible Shaft Couplings

High-Speed Vibration-Damping Flexible Shaft Couplings

High-Torque Flexible Shaft Couplings