Couplings for 45mm Shafts

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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

For Shaft Misalignment Type

Keyway Width

Overall Length

Material

Shaft Mount Type

Keyway Depth

Maximum Torque

10,000 in·lbf to 19,999 in·lbf

For Rotary Motion

Maximum Rotation Speed

Length

Number of Set Screws Included

Shaft Coupling Flexibility

Set Screw Material

Component

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

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Compliant with Exemptions

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Exempt

Export Control Classification Number (ECCN)

41 Products

High-Torque Set Screw Flexible Shaft Couplings

Image of System. Front orientation. Contains Annotated, MultipleImages. Flexible Shaft Couplings. High-Torque Set Screw Flexible Shaft Couplings.

The thick split spider on these couplings takes on twice as much torque as standard split spiders, while a set screw holds the hubs in place on your shaft. Also known as jaw couplings, use them to connect motors to pumps, mixers, and other high-torque equipment. You don’t need to lubricate them.

For a complete coupling, you’ll need two hubs, one split spider, and a split spider cover (all sold separately).

Hubs attach to the end of your shaft.

Split spiders cushion between the two hubs to dampen vibration, reduce shocks, and handle shaft misalignment, extending the life of bearings, seals, and motors. You can replace them without having to remove the hubs or move your shaft and equipment around, which reduces the risk of needing to realign the shaft.

Split spider covers hold the spider in place.

Hubs							Steel Split Spider Covers
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each		Each







			Steel Hubs, Split Spiders

			4 29/32"	3 3/16"	Keyed	Forward/Reverse, Start/Stop	45	3565N3	0000000	3565N63	000000

Urethane Split Spiders

			Misalignment Capability
	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Color		Each
Medium Soft







				Durometer 48D

				7,000	3,425	0.039"	2°	-60 to 212	Red	3565N47	000000


				Medium







								Durometer 60D

								7,000	6,460	0.039"	2°	-60 to 212	Blue	3565N49	00000


								7,000	6,460	0.039"	2°	-60 to 350	White	3565N48	000000

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., mm	OD, mm	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







			Steel Hubs

			115	96	Keyed	Forward/Reverse, Start/Stop	45	6133N21	000000	5,000	1,240	0.015"	1°	-40 to 212	Buna-N	6408K81	000000	3,600	3,705	0.015"	0.5°	-55 to 245	Hytrel	6408K98	0000000


			137	127	Keyed	Forward/Reverse, Start/Stop	45	6133N23	000000	4,200	2,340	0.015"	1°	-40 to 212	Buna-N	6408K62	00000	4,200	6,225	0.015"	0.5°	-55 to 245	Hytrel	6408K64	000000

High-Speed Vibration-Damping Flexible Shaft Couplings


	(Each Component Sold Separately)

Use these gear-shaped couplings for high-speed and high-torque applications. A rubber center allows flexing so couplings can take on multiple types of misalignment while damping vibration and shock. With no metal-to-metal contact, there’s no need for lubrication. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.

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

Hubs have a keyway, except hubs for 1⁄4" and 3⁄8" shaft dia. do not have a keyway.

	Hubs						Shaft Coupling Centers
									Misalignment Capability
	Overall Lg.	OD	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F	Material		Each
Cast Iron Hubs



		4 7/16"	5 29/64"	Continuous	45	6507K12	000000	4,500	1,135	0.02"	1°	0.125"	-30 to 275	TPE	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	For Rotary Motion		Each
For Keyed Shafts



	45	105	73	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	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	For Rotary Motion		Each
For Keyed Shafts



	45 mm × 45 mm	105	73	3,600	10,900	Forward/Reverse, Start/Stop, Continuous	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	M6 × 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