Couplings for 13/16" Shafts

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Flexible Shaft Couplings

Shaft Collars

System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

10 mm

11 mm

12 mm

12.500 mm to 40.000 mm

Shaft Type

Component

Construction

Material

Keyway Width

Overall Length

For Rotary Motion

Shaft Mount Type

For Shaft Misalignment Type

Keyway Depth

Length

Set Screw Material

Flexible Shaft Coupling Type

Spider Material

Number of Set Screws Included

Maximum Rotation Speed

Shaft Coupling Flexibility

Flexible

Set Screw Drive Style

Hex

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

REACH

Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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42 Products

Spider Couplings

With two hubs gripping a rubbery spider in the center, these couplings damp vibration and transfer torque while flexing to handle misaligned shafts. The metal hubs never touch each other, so there's no need for lubrication. Also known as Lovejoy® couplings. For a complete coupling, select two hubs and one spider or two hubs, one split spider, and one retaining ring. Choose components with the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Keyed—Mount onto shafts with a matching keyway.

Iron—Best for dry environments, since moisture will cause these hubs to rust.

Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.

	Shaft Mount Type	Choose a Shaft Dia.		Each
Keyed







	Iron

	1 3/4"	L075	2 1/8"	Set Screw	13/16"	6408K13	000000


	2 7/64"	L090	2 5/32"	Set Screw	13/16"	6408K14	00000
	2 7/64"	L095	2 1/2"	Set Screw	13/16"	6408K15	00000
	2 35/64"	L099	2 27/32"	Set Screw	13/16"	6408K16	00000
	3 21/64"	L110	4 7/32"	Set Screw	13/16"	6408K18	00000

Spiders

A flexible center fits between hubs to enable torque transfer and damp vibration.

Buna-N—Highly tear resistant and the best choice to absorb vibration and shock.

Polyurethane Rubber—Resist tearing better than Buna-N and provide a balance of stiffness and moderate vibration damping.

Hytrel—Stiffer than Buna-N, these spiders transmit torque from one shaft to the other almost fully but offer minimal vibration damping.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular		Each
Buna-N



		1 3/4", 45 mm	L075	11,000	90	0.015"	1°	6408K74	000000


		2 7/64", 54 mm	L090, L095	9,000	140	0.015"	1°	6408K75	00000
		2 17/32", 2 35/64", 65 mm	L099, L100	7,000	315	0.015"	1°	6408K77	00000
		3 21/64", 85 mm	L110	5,000	790	0.015"	1°	6408K79	00000


		Polyurethane Rubber



				1 3/4"	L075	3,600	135	0.015"	1°	2410K11	00000


				2 7/64"	L090, L095	3,600	210	0.015"	1°	2410K13	00000
				2 17/32", 2 35/64"	L099, L100	3,600	475	0.015"	1°	2410K15	00000
				3 21/64"	L110	3,600	1,185	0.015"	1°	2410K17	000000


				Hytrel



						1 3/4", 2 7/64", 45 mm	L075, L090	3,600	225	0.015"	0.5°	6408K94	00000


						2 7/64", 54 mm	L090, L095	3,600	400	0.015"	0.5°	6408K95	00000
						2 17/32", 2 35/64", 65 mm	L099, L100	3,600	790	0.015"	0.5°	6408K96	000000
						3 21/64", 85 mm	L110	3,600	2,265	0.015"	0.5°	6408K97	000000

Split Spiders

Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.

Polyurethane Rubber—Provide fair vibration damping and tear resistance.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each
Polyurethane Rubber



		2 7/64"	L090, L095	9,200	670	0.03"	2°	-30 to 200	2393K33	000000


		2 35/64"	L099, L100	7,700	1,110	0.03"	2°	-30 to 200	2393K34	000000
		3 21/64"	L110	5,900	2,180	0.03"	2°	-30 to 200	2393K35	000000

Retaining Rings

Press the pins on these rings into the grooves on a split spider. Then, twist to lock the spider in place and transmit torque between shafts.

347 Stainless Steel—Provide good corrosion resistance.

	For Hub OD		Each
347 Stainless Steel



	L090, L095	2 7/64"	2393K23	000000


	L099, L100	2 35/64"	2393K24	00000
	L110	3 21/64"	2393K25	000000

High-Misalignment Tire Couplings

With a large, flexible rubber tire, these withstand the highest misalignment of any coupling while reducing vibration. For a complete coupling, select two hubs, one tire, and two bushings. Choose components of the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Iron and Steel Hub—Best for dry environments, since moisture will cause these hubs to rust.

Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.

	Hubs						Quick-Disconnect Bushings
	OD	Shaft Coupling Trade Size	Overall Lg.	Shaft Mount Type		Each	Bushing Trade No.	Choose a Shaft Diameter		Each
Iron and Steel Hub



		5 1/4"	L095	3 1/4"	Clamp On	6241K11	000000	JA	1/2", 9/16", 5/8", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4"	6086K11	000000

Tires

Fit these highly flexible rubber tires over the two hubs. They transmit torque, compensate for misalignment, and isolate shock and vibration.

Buna-N—Highly tear resistant.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial		Each
Buna-N



		5 1/4"	L095	4,500	900	0.125"	4°	0.313"	6241K21	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	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



		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

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