Couplings for 45mm Shafts

Filter by

Product Family

Bearing Adapter Sleeves

Flexible Shaft Couplings

Rigid 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

Construction

Component

For Shaft Misalignment Type

Keyway Width

Material

Overall Length

Flexible Shaft Coupling Type

Shaft Mount Type

For Rotary Motion

Keyway Depth

Maximum Rotation Speed

Maximum Torque

Less than 10,000 in·lbf

10,000 in·lbf to 19,999 in·lbf

Length

Number of Set Screws Included

Shaft Coupling Flexibility

Flexible

Rigid

Flexible Shaft Coupling Trade Size

Performance

Highly Tear Resistant

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Forward

How can we improve?

Help me decide (beta)

41 Products

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	45 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

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.

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

	96	L150	115	Set Screw	45 mm	6133N21	000000


	127	L225	137	Set Screw	45 mm	6133N23	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.

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



		3 3/4", 96 mm	L150	5,000	1,240	0.015"	1°	6408K81	000000


		5", 127 mm	L225	4,200	2,340	0.015"	1°	6408K62	00000


		Hytrel



				3 3/4", 96 mm	L150	3,600	3,705	0.015"	0.5°	6408K98	000000


				5", 127 mm	L225	4,200	6,225	0.015"	0.5°	6408K64	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



	5 29/64"	8S	4 7/16"	Set Screw	45 mm	6507K12	000000

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



		5 29/64"	8S	4,500	1,135	0.02"	1°	0.125"	6507K75	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



	45	105	73	Not Rated	Not Rated	9800T32	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



	45 mm × 45 mm	114	70	3,600	10,900	6026N37	0000000

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.

				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



		45	73	32	107	13	14	3.8	Keyed	Socket Head	2	No	M6 × 1 mm	3	8.4	3	9604T23	0000000


		303 Stainless Steel



				45	73	32	107	13	14	3.8	Keyed	Socket Head	2	No	M8 × 1 mm	3	8.4	3	9624T28	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.

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.

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

						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



		45	73	19	Socket Head	2	6063K25	000000	14	3.8	3390N26	000000


		Chrome-Plated Carbon Steel



				45	73	19	Socket Head	2	3388N31	00000	—	—	———	0


				Carbon Steel



						45	73	19	Socket Head	2	9739T524	00000	—	—	———	0


						303 Stainless Steel



								45	73	19	Socket Head	2	3369K29	000000	—	—	———	0


								Aluminum



										45	73	19	Socket Head	2	9520T19	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.

Metric

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



	H 2310	45	45	55	Lock Nut, Lock Washer	7835T156	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.

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



		45	79	22	Socket Head	2	8386K65	000000


		303 Stainless Steel



				45	79	22	Socket Head	2	8386K673	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



		45	100	19	Socket Head	1	1511K271	0000000

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., mm	OD, mm	Wd., mm	Type	No. Included	Type	No. Included		1-24	25-Up
Black-Oxide Carbon Steel



		45	73	19	Hex Socket	1	Socket Head	2	1069N51	000000	000000

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.

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



		45	73	19	68	Socket Head	2	9746T224	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



		45	73	19	Socket Head	1	No	M8 × 1.25 mm	2	5633T19	000000


		303 Stainless Steel



				45	73	19	Socket Head	1	No	M8 × 1.25 mm	2	5705T19	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



		45	73	19	Socket Head	1	5706T28	000000


		303 Stainless Steel



				45	73	19	Socket Head	1	5719T19	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.

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



		45	73	19	Socket Head	1	57445K78	000000


		Zinc-Plated Carbon Steel



				45	73	19	Socket Head	1	57445K473	00000


				Aluminum



						45	73	19	Socket Head	1	9506T15	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.

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



		45	73	18	Hex Socket	1	57485K88	000000


		Blue Passivated Zinc-Plated Carbon Steel



				45	70	18	Hex Socket	1	6057N39	00000


				Carbon Steel



						45	70	18	Hex Socket	1	6056N39	00000


						303 Stainless Steel



								45	70	18	Hex Socket	1	6058N39	00000


								45	73	18	Hex Socket	1	57485K29	00000