Couplings for 30mm Shafts

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Shaft Type

Component

Construction

Keyway Width

Material

For Shaft Misalignment Type

Flexible Shaft Coupling Trade Size

Overall Length

Flexible Shaft Coupling Type

For Rotary Motion

Shaft Mount Type

Keyway Depth

Length

Shaft Coupling Flexibility

Flexible

Rigid

Maximum Rotation Speed

Maximum Torque

Less than 10,000 in·lbf

Not Rated

Set Screw Material

18-8 Stainless Steel

Steel

Number of Set Screws Included

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100 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.

Steel—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	For Shaft Diameter		Each
Keyed







	Iron

	2 35/64"	L100	3 31/64"	Set Screw	30 mm	6408K17	000000


	3 21/64"	L110	4 7/32"	Set Screw	30 mm	6408K18	00000




			Steel

			65 mm	L099	73 mm	Set Screw	30 mm	6133N17	00000


			96 mm	L150	115 mm	Set Screw	30 mm	6133N21	00000
			115 mm	L190	124 mm	Set Screw	30 mm	6133N22	000000

Spiders

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

Buna-N—Best choice for vibration damping and shock absorption with the lowest stiffness and good tear resistance.

Polyurethane Rubber—Superior tear resistance to Buna-N and Hytrel and a good balance of stiffness and vibration damping.

Hytrel—Most direct torque transfer with the highest stiffness and least vibration damping.

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



		2 17/32", 2 35/64", 65 mm	L099, L100	7,000	315	0.015"	1°	6408K77	000000


		3 21/64", 85 mm	L110	5,000	790	0.015"	1°	6408K79	00000
		3 3/4", 96 mm	L150	5,000	1,240	0.015"	1°	6408K81	00000
		4 1/2", 115 mm	L190	5,000	1,725	0.015"	1°	6408K82	00000


		Polyurethane Rubber



				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



						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
						3 3/4", 96 mm	L150	3,600	3,705	0.015"	0.5°	6408K98	000000
						4 1/2", 115 mm	L190	5,000	4,680	0.015"	0.5°	6408K99	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 35/64"	L099, L100	7,700	1,110	0.03"	2°	-30 to 200	2393K34	0000000


		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



	L099, L100	2 35/64"	2393K24	000000


	L110	3 21/64"	2393K25	000000

High-Torque Spider Couplings

With a thick split spider in the center, these transmit higher torque than standard split spider couplings. Connect them to pumps, mixers, and other equipment that generates heavy torque. The spider also prevents metal-to-metal contact between the hubs, so there's no need for lubrication. For a complete coupling, select two hubs, one split spider, and one split spider cover. 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.

Steel—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	For Shaft Diameter		Each
Keyed







	Steel

	3 3/16"	QF25	4 29/32"	Set Screw	30 mm	3565N3	0000000

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.

Urethane Rubber—Tough, with plastic-like tear resistance. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F		Each
Durometer 48D (Medium Soft) Urethane Rubber



		3 3/16"	QF25	7,000	3,425	0.039"	2°	0.116"	-60 to 212	3565N47	000000


		Durometer 60D (Medium) Urethane Rubber



				3 3/16"	QF25	7,000	6,460	0.039"	2°	0.116"	-60 to 212	3565N49	00000


				3 3/16"	QF25	7,000	6,460	0.039"	2°	0.116"	-60 to 350	3565N48	000000

Split Spider Covers

Hold split spiders in place to secure the two hubs.

Steel—Best for dry environments, since moisture will cause these covers to rust.

	For Hub OD		Each
Steel



	QF25	3 3/16"	3565N63	000000

High-Axial-Misalignment Sleeve Couplings

Flex to handle axial misalignment with the gear-shaped sleeve while transmitting high torque at high speeds. The flexible sleeve between the hubs reduces vibration, absorbs shock, and prevents metal-to-metal contact, so there's no need for lubrication. For a complete coupling, select two hubs and one sleeve. 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.

Cast Iron—Strong and rigid to withstand heavy loads. Keep these hubs dry to prevent rust.

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

	Shaft Coupling Trade Size	Overall Lg.	Shaft Mount Type	For Shaft Diameter		Each
Cast Iron



	4"	6S	3 1/2"	Set Screw	30 mm	6507K65	000000


	4 5/8"	7S	3 15/16"	Set Screw	30 mm	6507K5	00000

Sleeves

Install these flexible, cylindrical sleeves between the hubs.

TPE—Flexible rubber that resists water and outdoor conditions.

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



		4"	6J, 6S	6,000	450	0.015"	1°	0.125"	6507K73	000000


		4 5/8"	7S	5,250	725	0.02"	1°	0.125"	6507K74	00000

Precision Spider Couplings

Position shafts and handle misalignment on precision motors, pumps, and other equipment that requires highly controlled movements. These couplings have a hard, rubber spider to fully transfer torque from one shaft to the other (zero backlash). They're also known as precision jaw couplings. 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.

Aluminum—Lightweight and corrosion resistant.

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

	Shaft Mount Type	For Shaft Diameter		Each
Round







	Aluminum

	57.2 mm	36/57	80 mm	Clamp On	30 mm	9845T56	0000000


	Keyed







					Aluminum

					2 1/4"	36/57	3 13/64"	Clamp On	30 mm	9845T6	000000

Spiders

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

Polyurethane Rubber—Provide a balance of stiffness and moderate vibration damping. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular		Each
Durometer 92A (Extra Hard) Polyurethane Rubber



		2 1/4", 57 mm, 57.2 mm	36/57	8,000	570	0.005"	0.9°	9845T27	000000


		Durometer 98A (Extra Hard) Polyurethane Rubber



				2 1/4", 57 mm, 57.2 mm	36/57	8,000	820	0.004"	0.8°	9845T26	00000

Precision Bellows Couplings

With a thin-walled, corrugated-metal center tube (bellows), these couplings flex to handle all types of misalignment while transmitting high torque. They're ideal for stepper motors, encoders, and other equipment that requires torque to be fully transferred between shafts (zero backlash). They have no moving parts or inserts, so they don't require lubrication.

Aluminum with 321 Stainless Steel Bellows—Lightweight aluminum hubs paired with stainless steel bellows for corrosion resistance.

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

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







			Aluminum with 321 Stainless Steel Bellows

			1 1/4" × 30 mm	2 1/4"	3 1/4"	10,000	530	0.012"	2°	0.03"	Round	Clamp On	6446K829	0000000


			30 mm × 25 mm	57.2 mm	82.2 mm	10,000	530	0.3 mm	2°	0.75 mm	Round	Clamp On	6446K741	000000
			30 mm × 30 mm	57.2 mm	82.2 mm	10,000	530	0.3 mm	2°	0.75 mm	Round	Clamp On	6446K734	000000

Clamping Rigid Shaft Couplings

Designed to grip evenly around your shaft, clamping couplings provide more holding power than set screw couplings without marring the shaft. Slide onto the end of your shaft and tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel


For Keyed Shafts	For Round Shafts

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 30 mm	83	53	4,000	4,200	2469K79	0000000


	For Round Shafts



			30 mm × 20 mm	83	53	4,000	4,200	2469K54	000000


			30 mm × 25 mm	83	53	4,000	4,200	2469K55	000000
			30 mm × 30 mm	83	53	4,000	4,200	2469K11	000000

303 Stainless Steel


For Keyed Shafts	For Round Shafts

Stainless steel couplings have excellent corrosion resistance.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 30 mm	83	53	4,000	1,325	2469K69	0000000


	For Round Shafts



			30 mm × 30 mm	83	53	4,000	1,325	2469K35	000000

Set Screw Rigid Shaft Couplings

Slide these couplings onto the end of your shaft and tighten the set screws to secure. Set screws bite into the shaft to hold the coupling in place. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Black-Oxide 1215 Carbon Steel

For Keyed Shafts

Black-oxide steel couplings have some corrosion resistance.

4 Set Screws Included—Couplings with four set screws hold better than couplings with two set screws.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque	No. of Set Screws Included		Each
For Keyed Shafts



	30	83	53	4,000	Not Rated	4	3613N24	0000000

Two-Piece Rigid Shaft Couplings

Install and remove these shaft couplings without disconnecting the shafts, motors, and other attached components—they’re made in two pieces so you don’t need to slide them onto shaft ends. They’re also useful when you have limited access to the ends of the shafts. These couplings clamp onto the shafts, creating a secure hold that won’t mar them. Good for high-torque applications, they have a rigid construction. However, their rigidity means these couplings can only connect shafts that are well aligned.

Black-Oxide Steel

For Keyed

Shafts

Steel couplings are stronger and handle higher torque loads than aluminum and stainless steel couplings.

For Keyed Shafts—Couplings for keyed shafts have keyways that are cut to standard ANSI dimensions, so they fit snugly on ANSI keyed shafts to eliminate slipping during starts and stops.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 30 mm	83	53	4,000	4,200	6508T29	0000000


	For Round Shafts



			30 mm × 30 mm	83	53	4,000	4,200	6508T61	000000

303 Stainless Steel

For Keyed

Shafts

303 stainless steel couplings resist corrosion, so they’re often used in wet conditions, such as with mixers and pumps.

For Keyed Shafts—Couplings for keyed shafts have keyways that are cut to standard ANSI dimensions, so they fit snugly on ANSI keyed shafts to eliminate slipping during starts and stops.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 30 mm	83	53	4,000	1,325	6508T79	0000000

Machinable-Bore Clamping Rigid Shaft Couplings

When one of your shafts is undersized from wear, oversized from coatings, or uncommonly sized, machine one end of these couplings to fit. They clamp around your shafts for a secure hold that won’t cause damage. But, you’ll need access to the end of each shaft to slide them into place. Since they’re rigid, they prevent movement between the shafts, making them good for high-torque applications. This also means your shafts must align to connect.

Steel


	For Keyed Shafts	For Round Shafts

Steel couplings resist corrosion in dry environments.

For Keyed Shafts—Couplings for keyed shafts grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.

	Overall Lg., mm	OD, mm	Max. Rotation Speed	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 9.500 mm to 30.000 mm	83	52	Not Rated	5,420	3084K121	0000000


	For Round Shafts



			30 mm × 9.500 mm to 30.000 mm	83	54	Not Rated	4,065	3084K96	000000

Strong-Grip Two-Piece Rigid Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

For Keyed Shafts

	Overall Lg., mm	OD, mm	Max. Rotation Speed	Max. Torque		Each
For Keyed Shafts



	30	75	54	Not Rated	Not Rated	9800T28	0000000

Three-Piece Rigid Shaft Couplings

Access one shaft without disconnecting the other. These rigid couplings have a solid bottom that connects the shafts and two top pieces that clamp the shafts independently.

Black-Oxide Steel

For Keyed Shafts

Black-oxide steel couplings are stronger than stainless steel couplings but should be used in primarily dry environments since they may rust.

	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf		Each
For Keyed Shafts



	30 mm × 30 mm	83	52	3,600	4,150	6026N34	0000000

Servomotor Precision Bonded Couplings

With a bonded rubber center, these couplings damp vibration and accommodate misalignment on servomotors. The center and the lightweight aluminum hubs transfer torque fully (zero backlash) between shafts that start and stop frequently or accelerate at high speeds. They're often used on packaging machines, press brakes, and machinery for semiconductor production.

Aluminum with Buna-N Center—Durable yet flexible, the molded rubber center withstands tearing force from misaligned shafts while absorbing vibration.

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

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







			Aluminum with Buna-N Center

			24 mm × 30 mm	2 43/64"	2 61/64"	9,000	575	0.008"	1.5°	0.012"	Round	Clamp On	6853N158	0000000

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.

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

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.

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.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

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



		30	54	15	Socket Head	2	6063K22	000000	8	3.3	3390N23	000000


		Chrome-Plated Carbon Steel



				30	54	15	Socket Head	2	3388N27	00000	—	—	———	0


				Carbon Steel



						30	54	15	Socket Head	2	9739T521	00000	—	—	———	0


						303 Stainless Steel



								30	54	15	Socket Head	2	3369K26	00000	8	3.3	3430N19	00000


								30	60	12	Socket Head	2	7731N49	00000	—	—	———	0


								316 Stainless Steel



										30	54	15	Socket Head	2	9652T25	000000	—	—	———	0


										Aluminum



												30	54	15	Socket Head	2	9520T16	00000	—	—	———	0


												30	60	12	Socket Head	2	7731N48	00000	—	—	———	0


												Black Anodized Aluminum



														30	54	15	Socket Head	2	3731N38	00000	—	—	———	0

Flange-Mount Shaft Collars

Use the tapped and unthreaded holes on the flange to mount components as needed. To install, slide these collars from one end of your shaft and tighten the clamping screws. The collars grip firmly and evenly without marring the shaft, so you can reposition or remove them later. Collars with keyways have a standard ANSI keyway to lock in place shafts, keys, and key stock.

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.

				Flange, mm		Keyway, mm			Clamping Screw			Mounting Holes		Unthreaded Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	OD	Thk.	Wd.	Dp.	For Shaft Type	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of	Dia., mm	No. of		Each
Black-Oxide Carbon Steel



		30	54	25.4	82	7.9	8	3.3	Keyed	Socket Head	2	No	M6 × 1 mm	3	6	3	9604T19	0000000


		303 Stainless Steel



				30	54	25.4	82	7.9	8	3.3	Keyed	Socket Head	2	No	M6 × 1 mm	3	6	3	9624T25	000000


				Aluminum



						30	54	25.4	82	7.9	8	3.3	Keyed	Socket Head	2	No	M6 × 1 mm	3	6	3	9723T19	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



		30	48	16	Hex Socket	1	57485K81	00000


		Blue Passivated Zinc-Plated Carbon Steel



				30	45	16	Hex Socket	1	6057N32	0000


				Carbon Steel



						30	45	16	Hex Socket	1	6056N32	0000


						303 Stainless Steel



								30	45	16	Hex Socket	1	6058N32	00000


								30	48	16	Hex Socket	1	57485K43	00000

Top-and-Bottom-Mount Shaft Collars

Use the flat ends and tapped holes on these collars to attach components or stack additional top-and-bottom-mount collars. Slide collars from one end of the shaft and tighten the clamping screw. They grip firmly and evenly without marring the surface, 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			Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	Flat-to-Flat Ht., mm	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of		Each
Black-Oxide Carbon Steel



		30	54	15	50	Socket Head	1	No	M6 × 1 mm	2	7165N128	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., mm	OD, mm	Wd., mm	Type	No. Included		Each
Black-Oxide Carbon Steel



		30	54	15	Socket Head	1	57445K75	000000


		Zinc-Plated Carbon Steel



				30	54	15	Socket Head	1	57445K464	00000


				303 Stainless Steel



						30	54	15	Socket Head	1	9616T26	00000


						316 Stainless Steel



								30	54	15	Socket Head	1	9616T448	000000


								Aluminum



										30	54	15	Socket Head	1	9506T12	00000

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



		30	54	15	Socket Head	1	3761N114	000000

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.

Metric

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



	H 207	30	30	29	Lock Nut, Lock Washer	4449N19	000000


	H 2307	30	30	43	Lock Nut, Lock Washer	7835T149	00000

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



		30	54	15	Socket Head	2	3585N25	000000

Quick-Release Shaft Collars with Lever

Flip the lever to install, reposition, and remove these collars. They clamp firmly and evenly without marring your shaft.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

				Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Black Anodized Aluminum



		30	50	13	Socket Head	1	1511K265	000000

Face-Mount Shaft Collars

Mount components into the tapped holes on the face of these collars. They slide from one end of a shaft and clamp firmly and evenly to prevent marring, 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.

				Clamping Screw			Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of		Each
Black-Oxide Carbon Steel



		30	54	15	Socket Head	1	No	M6 × 1 mm	2	5633T16	000000


		303 Stainless Steel



				30	54	15	Socket Head	1	No	M6 × 1 mm	2	5705T16	00000

Hinged Shaft Collars

Combine the versatility of a two-piece collar with the no-fuss installation of a one-piece design. These hinged collars swing open and shut onto your shaft when other components are already attached or you can't access the ends. The clamping screw is captive so it won't fall out, and it aligns itself in the hole when the collar swings shut.

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.

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



		30	54	15	Socket Head	1	5706T25	000000


		303 Stainless Steel



				30	54	15	Socket Head	1	5719T16	00000

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.

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



		30	54	15	Hex Socket	1	Socket Head	2	1069N47	000000	000000


		303 Stainless Steel



				30	54	15	Hex Socket	1	Socket Head	2	1069N57	00000	00000

Two-Piece Shaft Collars with Wrench Flats

When adjusting or troubleshooting your drive shaft, turn these collars with a wrench to avoid marring or gouging the surface. To install, snap the two pieces together anywhere along the shaft, which helps when other components are attached or you can't access the ends.

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.

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



		30	54	15	49	Socket Head	2	9746T221	000000


		303 Stainless Steel



				30	54	15	49	Socket Head	2	5876T321	000000

Oversized Two-Piece Shaft Collars


For Round Shafts	For Keyed 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.

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

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



		30	60	18	Socket Head	2	8386K647	000000	8	3.3	8386K66	000000


		303 Stainless Steel



				30	60	18	Socket Head	2	8386K67	00000	—	—	———	0

Shaft Collars with Lever

Ideal for frequent setup changes in tight spaces, these collars tighten with a lever instead of a screwdriver. Slide them from one end of your shaft and turn the lever like a ratchet to secure. To reposition or remove collars later, use the lever to loosen the screw and release the hold.

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.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

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



		30	54	15	40.5	45	Socket Head	1	3466N4	000000


		303 Stainless Steel



				30	54	15	40.5	45	Socket Head	1	3466N76	00000


				Black Anodized Aluminum



						30	54	15	40.5	45	Socket Head	1	3466N112	00000

Top-and-Bottom-Mount Two-Piece Shaft Collars

Use the flat ends and tapped holes on these two-piece collars to attach components or stack additional top-and-bottom-mount collars. Add them anywhere on a shaft when other parts are already attached or you can't access the ends. The collars 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.

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			Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	Flat-to-Flat Ht., mm	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of		Each
Black-Oxide Carbon Steel



		30	54	15	50	Socket Head	2	No	M6 × 1 mm	2	5878T628	000000


		303 Stainless Steel



				30	54	15	50	Socket Head	2	No	M6 × 1 mm	2	5878T629	00000


				Aluminum



						30	54	15	50	Socket Head	2	No	M6 × 1 mm	2	5878T627	00000

Two-Piece Shaft Collars with Lever

Skip the screwdriver—tighten these collars by turning the lever like a ratchet instead. They're ideal for packing, printing, label-feeding, and other equipment requiring frequent setup changes in tight spaces. Attach them anywhere along your shaft, which helps when other components are already installed or you can't access the ends. To reposition or remove collars later, use the lever to loosen the screw and release the hold.

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.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

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



		30	54	15	40.5	45	Socket Head	2	3553N149	000000


		303 Stainless Steel



				30	54	15	40.5	45	Socket Head	2	3553N249	000000


				Black Anodized Aluminum



						30	54	15	40.5	45	Socket Head	2	3553N349	00000