Couplings for 1 5/16" Shafts

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9.500 mm to 35.000 mm

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Material

Component

Number of Set Screws Included

Length

Keyway Depth

For Rotary Motion

Set Screw Material

For Shaft Misalignment Type

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Flexible

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Hex

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Yes

1 5/16"

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SDS

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Hex

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Compliant

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Compliant

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EAR99

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30 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

			3 31/64"	2 35/64"	Keyed	Forward/Reverse, Start/Stop	1 5/16"	6408K17	000000	7,000	315	0.015"	1°	-40 to 212	Buna-N	6408K77	000000	3,600	790	0.015"	0.5°	-55 to 245	Hytrel	6408K96	0000000	3,600	475	0.015"	1°	-30 to 160	Polyurethane Rubber	2410K15	000000	7,700	1,110	0.03"	2°	-30 to 200	Polyurethane Rubber	2393K34	0000000	2393K24	000000

Two-Piece Shaft Collars

For Round Shafts

For Keyed 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.

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



		1 5/16"	2 1/8"	9/16"	Socket Head	2	6436K49	000000	5/16"	5/32"	3357K32	000000


		Zinc-Plated Carbon Steel



				1 5/16"	2 1/4"	9/16"	Socket Head	2	2380K32	00000	—	—	———	0


				Chrome-Plated Carbon Steel



						1 5/16"	2 1/8"	9/16"	Socket Head	2	3370K77	00000	—	—	———	0


						303 Stainless Steel



								1 5/16"	2 1/8"	9/16"	Socket Head	2	6436K95	00000	—	—	———	0


								316 Stainless Steel



										1 5/16"	2 1/8"	9/16"	Socket Head	2	9633T25	00000	—	—	———	0


										Aluminum



												1 5/16"	2 1/8"	9/16"	Socket Head	2	6436K145	00000	—	—	———	0

Bearing Adapter Sleeves

Make up for imperfections and gaps between your bearing and shaft for a tight fit. These bearing adapter sleeves are the most common way to mount a bearing with a tapered bore onto a cylindrical seat. They work with both straight and stepped shafts. Secure using the included lock nut.

Inch

	For Shaft Dia.	ID	Wd.	Includes		Each
Low-Carbon Steel



	SNW-09	1 5/16"	1 5/16"	1.574"	Lock Nut, Lock Washer	4449N29	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.

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.

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



		1 5/16"	2 1/4"	9/16"	Socket Head	1	6435K56	00000


		Zinc-Plated Carbon Steel



				1 5/16"	2 1/4"	9/16"	Socket Head	1	9961K32	00000


				303 Stainless Steel



						1 5/16"	2 1/4"	9/16"	Socket Head	1	6435K57	00000


						316 Stainless Steel



								1 5/16"	2 1/8"	9/16"	Socket Head	1	9421T22	00000


								Aluminum



										1 5/16"	2 1/8"	9/16"	Socket Head	1	6157K28	00000

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



		1 5/16"	2 1/2"	5/8"	Socket Head	1	9951K48	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



		1 5/16"	2 1/2"	5/8"	Socket Head	2	8386K48	000000

Set Screw Two-Piece Shaft Collars

Attach these traditional collars anywhere along a shaft when other components are already installed or you can't access the ends. Their set screw digs into the shaft for a tight, permanent 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.

				Set Screw		Clamping Screw			Each
	For Shaft Dia.	OD	Wd.	Type	No. Included	Type	No. Included		1-24	25-Up
Black-Oxide Carbon Steel



		1 5/16"	2 1/8"	9/16"	Hex Socket	1	Socket Head	2	1069N66	000000	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 SDS

				1 3/8"	5/16"	5/32"	108	Sintered Steel	Clamping Screws	1 5/16"	6086K851	000000




						Bushing Trade Number SH

						1 5/16"	5/16"	5/32"	108	Sintered Steel	Clamping Screws	1 5/16"	6086K848	00000




								Bushing Trade Number SK

								1 15/16"	5/16"	5/32"	180	Sintered Steel	Clamping Screws	1 5/16"	6086K533	00000

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



		1 5/16"	2 1/8"	11/16"	Hex Socket	1	9414T25	00000


		Zinc-Plated Carbon Steel



				1 5/16"	2 1/8"	11/16"	Hex Socket	1	6432K31	0000


				303 Stainless Steel



						1 5/16"	2 1/8"	11/16"	Hex Socket	1	6462K31	00000


						316 Stainless Steel



								1 5/16"	2 1/8"	11/16"	Hex Socket	1	9943K35	00000


								Aluminum



										1 5/16"	2 1/8"	11/16"	Hex Socket	1	9946K29	00000