Couplings for 9mm Shafts

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6.000 mm to 10.000 mm

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9 mm

9.500 mm to 25.000 mm

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9.500 mm to 35.000 mm

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12.500 mm to 40.000 mm

Shaft Type

Construction

Shaft Mount Type

Material

Overall Length

For Shaft Misalignment Type

Keyway Width

For Rotary Motion

Keyway Depth

Shaft Coupling Flexibility

Flexible

Number of Clamping Screws Included

Length

Number of Set Screws Included

Finish

Black Oxide

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Component

Hub

Maximum Rotation Speed

Clamping Screw Type

Clamping Screw Material

Stainless Steel

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

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75 Products

Clamping Vibration-Damping Precision Flexible Shaft Couplings


	(Each Component Sold Separately)

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).

A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are lightweight, corrosion-resistant aluminum. Spiders are polyurethane for fair vibration damping and good chemical resistance.

Hubs							Durometer 98A Polyurethane Spiders							Durometer 92A Polyurethane Spiders							Durometer 85A Polyurethane Spiders
									Misalignment Capability							Misalignment Capability							Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each







			2024 Aluminum Hubs

			1 13/32"	1"	Round	Forward/Reverse, Start/Stop	9	9845T2	000000	8,000	150	0.003"	0.8°	0 to 180	9845T14	000000	8,000	58	0.005"	0.9°	0 to 180	9845T15	000000	8,000	30	0.006"	1°	0 to 180	9845T16	000000


			1 13/16"	1 5/16"	Round	Forward/Reverse, Start/Stop	9	9845T3	00000	8,000	170	0.003"	0.8°	0 to 180	9845T17	00000	8,000	70	0.005"	0.9°	0 to 180	9845T18	00000	8,000	36	0.006"	1°	0 to 180	9845T19	00000
			35.3 mm	25.4 mm	Keyed	Forward/Reverse, Start/Stop	9	9845T57	00000	8,000	150	0.003"	0.8°	0 to 180	9845T14	00000	8,000	58	0.005"	0.9°	0 to 180	9845T15	00000	8,000	30	0.006"	1°	0 to 180	9845T16	00000
			44.5 mm	33.3 mm	Keyed	Forward/Reverse, Start/Stop	9	9845T58	00000	8,000	170	0.003"	0.8°	0 to 180	9845T17	00000	8,000	70	0.005"	0.9°	0 to 180	9845T18	00000	8,000	36	0.006"	1°	0 to 180	9845T19	00000

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.

Hubs							Buna-N Spiders								Hytrel Spiders
									Misalignment Capability								Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		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







			Iron Hubs

			1 23/32"	1 5/64"	Keyed	Forward/Reverse, Start/Stop	9	6408K11	00000	18,000	26	0.015"	1°	-40 to 212	Buna-N	6408K84	00000	18,000	50	0.015"	0.5°	-55 to 245	Hytrel	6408K91	000000

Clamping Precision Flexible Shaft Couplings

Spiral Cut

Parallel Cut

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure.

Spiral Cut—Spiral couplings have long cuts in their body for flexibility to handle parallel, axial, and angular misalignment better than parallel couplings. However, they’re not as rigid. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings.

Parallel Cut—Parallel couplings have short, intermittent cuts that make them more rigid and able to handle more torque and speed than spiral couplings, but they’re worse at correcting misalignment. Use them in high-torque applications, such as linear test systems and scientific instruments. They’re sometimes called slit couplings.

7075 Aluminum—7075 aluminum couplings are lightweight with good corrosion resistance.

303 Stainless Steel—303 stainless steel couplings offer excellent corrosion resistance.

						Misalignment Capability
	For Shaft Diameter	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel, mm	Angular	Axial, mm	For Rotary Motion		Each
Spiral Cut







				7075 Aluminum

				9 mm × 1/4"	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2464K21	000000


				9 mm × 3/8"	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2464K26	00000
				9 mm × 3/8"	38	30	6,000	58	0.38	3°	0.25	Forward/Reverse, Start/Stop	2464K28	000000
				9 mm × 1/2"	38	30	6,000	58	0.38	3°	0.25	Forward/Reverse, Start/Stop	2464K33	000000
				9 mm × 5/8"	38	30	6,000	58	0.38	3°	0.25	Forward/Reverse, Start/Stop	2464K37	000000
				9 mm × 6 mm	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K29	00000
				9 mm × 7 mm	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K31	00000
				9 mm × 8 mm	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K32	00000
				9 mm × 8 mm	38	30	6,000	58	0.381	3°	0.25	Forward/Reverse, Start/Stop	2463K41	000000
				9 mm × 9 mm	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K33	00000
				9 mm × 9 mm	38	30	6,000	58	0.381	3°	0.25	Forward/Reverse, Start/Stop	2463K42	000000


				10 mm × 9 mm	30	25	6,000	27	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K37	00000
				10 mm × 9 mm	38	30	6,000	58	0.381	3°	0.25	Forward/Reverse, Start/Stop	2463K44	000000
				12 mm × 9 mm	38	30	6,000	58	0.381	3°	0.25	Forward/Reverse, Start/Stop	2463K52	000000




						303 Stainless Steel

						6 mm × 9 mm	30	25	6,000	40	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K307	000000


						8 mm × 9 mm	30	25	6,000	40	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K309	000000
						9 mm × 9 mm	30	25	6,000	40	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K311	000000
						9 mm × 10 mm	30	25	6,000	40	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K315	000000
						9 mm × 10 mm	38	30	6,000	88	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K402	000000
						9 mm × 12 mm	38	30	6,000	88	0.38	3°	0.25	Forward/Reverse, Start/Stop	2463K407	000000


						Parallel Cut







										7075 Aluminum

										9 mm × 5 mm	21.5	20	7,500	21.7	0.12	3°	0.5	Forward/Reverse, Start/Stop	8011N26	000000


										9 mm × 9 mm	26	20	7,500	21.7	0.25	3°	0.5	Forward/Reverse, Start/Stop	8011N169	000000
										12 mm × 9 mm	34	25	5,000	34.5	0.4	3°	0.7	Forward/Reverse, Start/Stop	8011N19	000000

Clamping High-Parallel-Misalignment Flexible Shaft Couplings


Components of a Coupling Shown Assembled	(Each Component Sold Separately)

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure. Also known as Oldham couplings, they have a slotted disc that allows hubs to slide independently—good for applications with parallel shaft misalignment. They also allow zero backlash (no play) and never need lubrication.

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

2024 Aluminum—2024 aluminum hubs are lightweight and have good corrosion resistance.

Acetal Disc—Acetal discs stand up to high twisting forces.

Nylon Disc—Nylon discs have excellent vibration and shock absorption.

PEEK Disc—PEEK discs have excellent impact resistance and the chemical resistance to withstand a variety of acids and other harsh substances.

Hubs							Acetal Discs									Nylon Discs									PEEK Discs
									Misalignment Capability									Misalignment Capability									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each







			2024 Aluminum Hubs

			1 1/4"	1"	Round	Forward/Reverse, Start/Stop	9	9889T2	000000	4,500	42	0.008"	0.5°	0.004"	-10 to 150	Acetal	59985K63	000000	4,500	10	0.008"	0.5°	0.004"	-10 to 130	Nylon	59985K93	000000	4,500	42	0.008"	0.5°	0.004"	-10 to 300	PEEK	59985K712	000000


			1 7/8"	1 5/16"	Round	Forward/Reverse, Start/Stop	9	9889T3	00000	4,500	70	0.008"	0.5°	0.006"	-10 to 150	Acetal	59985K64	00000	4,500	18	0.008"	0.5°	0.006"	-10 to 130	Nylon	59985K94	00000	4,500	70	0.008"	0.5°	0.006"	-10 to 300	PEEK	59985K713	00000

Set Screw High-Parallel-Misalignment Flexible Shaft Couplings


	(Each Component Sold Separately)

Each hub includes a set screw, which bites into your shaft to hold the coupling in place. Also known as Oldham couplings, these couplings have a slotted disc that allows hubs to slide independently—good for applications with parallel shaft misalignment. They also allow zero backlash (no play) and never need lubrication.

A complete coupling consists of two hubs and one disc (each component sold separately). Hubs are made of aluminum, so they’re lightweight and have good corrosion resistance.

Acetal Disc—Acetal discs stand up to high twisting forces.

Nylon Disc—Nylon discs have excellent vibration and shock absorption.

PEEK Disc—PEEK discs have excellent impact resistance and the chemical resistance to withstand a variety of acids and other harsh substances.

Hubs							Acetal Discs									Nylon Discs									PEEK Discs
									Misalignment Capability									Misalignment Capability									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Disc Material		Each







			2024 Aluminum Hubs

			1 1/8"	1"	Round	Forward/Reverse, Start/Stop	9	59985K3	000000	4,500	42	0.008"	0.5°	0.004"	-10 to 150	Acetal	59985K63	000000	4,500	10	0.008"	0.5°	0.004"	-10 to 130	Nylon	59985K93	000000	4,500	42	0.008"	0.5°	0.004"	-10 to 300	PEEK	59985K712	000000

Servomotor Precision Flexible Shaft Couplings

Able to handle high twisting forces as well as misalignment, these couplings are good for high-performance servomotor applications. Couplings are aluminum and stainless steel for corrosion resistance and allow zero backlash (no play). They grip evenly around your shaft for a strong hold without marring the shaft. Tighten the clamping screws to secure.

					Misalignment Capability
For Shaft Diameter	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	For Rotary Motion		Each







			2017 Aluminum and 304 Stainless Steel

			3/16" × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K222	000000


			1/4" × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K227	00000
			5/16" × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K234	00000
			3/8" × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K238	00000
			3/8" × 9 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K417	000000
			1/2" × 9 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K423	000000
			5/8" × 9 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K428	000000
			5 mm × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K243	00000
			6 mm × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K246	00000
			8 mm × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K248	00000
			9 mm × 9 mm	1 9/32"	1 1/64"	10,000	18	0.006"	1°	0.013"	Forward/Reverse, Start/Stop	2764K249	00000


			9 mm × 9 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K434	000000
			9 mm × 10 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K435	000000
			9 mm × 14 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K436	000000
			9 mm × 15 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K437	000000
			9 mm × 16 mm	1 57/64"	1 35/64"	10,000	89	0.009"	1°	0.02"	Forward/Reverse, Start/Stop	2764K438	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.

Blue Passivated Zinc-Plated Carbon Steel—Withstand moisture and mild chemicals better than standard zinc-plated-steel collars. The blue passivated finish makes it easy to identify metric collars at a glance.

Carbon Steel—Strong and easy to machine. Use in dry environments, since moisture will cause steel to rust.

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

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



		9	16	8	Hex Socket	1	57485K15	00000


		Blue Passivated Zinc-Plated Carbon Steel



				9	18	10	Hex Socket	1	6057N17	0000


				Carbon Steel



						9	18	10	Hex Socket	1	6056N17	0000


						303 Stainless Steel



								9	16	8	Hex Socket	1	57485K16	00000


								9	18	10	Hex Socket	1	6058N17	0000

Plastic Shaft Collars

Lightweight alternatives to metal collars for weight-sensitive applications. 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.

Acetal—Resist swelling when exposed to moisture.

				Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Acetal



		9	24	9	Socket Head	1	3761N117	000000

Plastic Two-Piece Shaft Collars

Lightweight alternatives to metal two-piece collars for weight-sensitive applications. Attach these collars anywhere along a shaft when other components are already installed or you can't access the ends. They clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.

Acetal—Resist swelling when exposed to moisture.

				Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Acetal



		9	24	9	Socket Head	2	3585N28	000000

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.

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



		9	24	9	Socket Head	2	6063K45	000000


		303 Stainless Steel



				9	24	9	Socket Head	2	3369K42	00000


				Aluminum



						9	24	9	Socket Head	2	9520T28	00000

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.

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

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



		9	25	9	Socket Head	1	57445K29	000000


		Zinc-Plated Carbon Steel



				9	24	9	Socket Head	1	57445K443	00000


				303 Stainless Steel



						9	25	9	Socket Head	1	9616T17	00000


						Aluminum



								9	25	9	Socket Head	1	9506T19	00000