Couplings for 13/16" Shafts

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For Rotary Motion

For Shaft Misalignment Type

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Hub

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Stainless Steel

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Sintered

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EAR99

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40 Products

Set Screw Flexible Shaft Couplings


Hubs, Split Spider, and Retaining Ring Shown Assembled	(Each Component Sold Separately)

Hubs and Spider 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—Buna-N spiders provide good vibration damping and chemical resistance.

Hytrel—Hytrel spiders provide fair vibration damping and excellent chemical resistance.

Polyurethane Rubber—Polyurethane spiders and split spiders provide fair vibration damping and good chemical resistance.

Hubs							Buna-N Spiders								Hytrel Spiders								Polyurethane Spiders								Polyurethane Split Spiders								347 Stainless Steel Retaining Rings
									Misalignment Capability								Misalignment Capability								Misalignment Capability								Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia.		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each		Each







			Iron Hubs

			2 1/8"	1 3/4"	Keyed	Forward/Reverse, Start/Stop	13/16"	6408K13	000000	11,000	90	0.015"	1°	-40 to 212	Buna-N	6408K74	000000	3,600	225	0.015"	0.5°	-55 to 245	Hytrel	6408K94	000000	3,600	135	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K11	000000	—	—	—	—	—	—	———	0	———	0


			2 5/32"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	13/16"	6408K14	00000	9,000	140	0.015"	1°	-40 to 212	Buna-N	6408K75	00000	3,600	400	0.015"	0.5°	-55 to 245	Hytrel	6408K95	00000	3,600	210	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K13	00000	9,200	670	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K33	000000	2393K23	000000
			2 1/2"	2 7/64"	Keyed	Forward/Reverse, Start/Stop	13/16"	6408K15	00000	9,000	140	0.015"	1°	-40 to 212	Buna-N	6408K75	00000	3,600	400	0.015"	0.5°	-55 to 245	Hytrel	6408K95	00000	3,600	210	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K13	00000	9,200	670	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K33	00000	2393K23	00000
			2 27/32"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	13/16"	6408K16	00000	7,000	315	0.015"	1°	-40 to 212	Buna-N	6408K77	00000	3,600	790	0.015"	0.5°	-55 to 245	Hytrel	6408K96	000000	3,600	475	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K15	00000	7,700	1,110	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K34	000000	2393K24	00000
			4 7/32"	3 21/64"	Keyed	Forward/Reverse, Start/Stop	13/16"	6408K18	00000	5,000	790	0.015"	1°	-40 to 212	Buna-N	6408K79	00000	3,600	2,265	0.015"	0.5°	-55 to 245	Hytrel	6408K97	000000	3,600	1,185	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K17	000000	5,900	2,180	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K35	000000	2393K25	000000

Shaft Collars

Slide these collars from one end of your shaft and tighten the clamping screw. They grip firmly and evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

Aluminum—One-third the weight of steel and corrosion resistant.

				Clamping Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		13/16"	1 5/8"	1/2"	Socket Head	1	6435K29	00000


		303 Stainless Steel



				13/16"	1 5/8"	1/2"	Socket Head	1	6435K42	00000


				Aluminum



						13/16"	1 5/8"	1/2"	Socket Head	1	6157K19	0000

Oversized Shaft Collars

Wider and thicker with a larger clamping screw, these shaft collars deliver a stronger grip than standard collars. Slide them from one end of your shaft and tighten the screw. They clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

				Clamping Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		13/16"	2"	5/8"	Socket Head	1	9951K41	000000

Oversized Two-Piece Shaft Collars

For Round Shafts

Wider and thicker with larger clamping screws, these deliver a more powerful hold than standard two-piece collars. Attach them anywhere along a shaft when other components are already installed or you can't access the ends. They grip evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

				Clamping Screw		For Round Shafts
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		13/16"	2"	5/8"	Socket Head	2	8386K41	000000

Quick-Disconnect (QD) Bushings


Clamp-On Shaft Mount

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing trade number. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

		Keyway
	Overall Wd.	Wd.	Dp.	Fastener Tightening Torque, in·lbf	Material	Includes	For Shaft Dia.		Each
Clamp-On Shaft Mount







				Bushing Trade Number JA

				1"	3/16"	3/32"	60	Sintered Steel	Clamping Screws	13/16"	6086K119	000000

Set Screw Shaft Collars

Slide these traditional collars from one end of the shaft and tighten the set screw. They dig into the shaft for a secure hold, but one that leaves a gouge. For maximum holding power, make sure the set screw is harder than the shaft.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

				Set Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		13/16"	1 1/4"	9/16"	Hex Socket	1	9414T76	00000


		Zinc-Plated Carbon Steel



				13/16"	1 1/4"	9/16"	Hex Socket	1	6432K26	0000


				303 Stainless Steel



						13/16"	1 1/4"	9/16"	Hex Socket	1	6462K26	00000


						316 Stainless Steel



								13/16"	1 1/4"	9/16"	Hex Socket	1	9943K26	00000


								Aluminum



										13/16"	1 1/4"	9/16"	Hex Socket	1	9946K4	0000

Two-Piece Shaft Collars

For Round Shafts

Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

Chrome-Plated Carbon Steel—Resist moisture and mild cleaning solutions better than zinc-plated collars.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

				Clamping Screw		For Round Shafts
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		13/16"	1 5/8"	1/2"	Socket Head	2	6436K29	000000


		Zinc-Plated Carbon Steel



				13/16"	1 5/8"	1/2"	Socket Head	2	2380K23	00000


				Chrome-Plated Carbon Steel



						13/16"	1 5/8"	1/2"	Socket Head	2	3370K72	00000


						303 Stainless Steel



								13/16"	1 5/8"	1/2"	Socket Head	2	6436K91	00000


								316 Stainless Steel



										13/16"	1 5/8"	1/2"	Socket Head	2	9633T16	00000


										Aluminum



												13/16"	1 5/8"	1/2"	Socket Head	2	6436K138	00000