Bushings for 42mm 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

12.500 mm to 40.000 mm

Material

Bushing Trade Number

Shaft Mount Type

Shaft Type

Length

Keyway Width

Construction

Component

Keyway Depth

Width

For Load Direction

Performance

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

Yes

RoHS

Compliant

Compliant with Exemptions

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

For Shaft Misalignment Type

Plain Bearing Type

Torque

Less than 10,000 in·lbf

Flexible Shaft Coupling Trade Size

For Rotary Motion

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42 Products

Quick-Disconnect (QD) Bushings


Clamp-On Shaft Mount	Machinable Shaft Mount

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing trade number. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

304 Stainless Steel—304 stainless steel bushings resist corrosion from washdowns and humidity, so they’re common in food-processing plants and other frequently-cleaned areas. You can machine the center of these bushings to fit the exact dimensions of your shaft.

			Keyway, mm
	For Max. Shaft Dia., mm	Overall Wd., mm	Wd.	Dp.	Fastener Tightening Torque, in·lbf	Material	Includes	For Shaft Dia., mm		Each
Clamp-On Shaft Mount







				Bushing Trade Number SD

				—	46	12	3.3	108	Cast Iron	Clamping Screws	42	2344K39	000000




						Bushing Trade Number SDS

						—	35	12	3.3	108	Cast Iron	Clamping Screws	42	2344K29	00000




								Bushing Trade Number SK

								—	49	12	3.3	180	Sintered Steel	Clamping Screws	42	2344K72	00000


								Machinable Shaft Mount







												Bushing Trade Number SH

												42	36	—	—	108	304 Stainless Steel	Clamping Screws	13	2344K76	000000

Taper-Lock Bushings

Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing trade number. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.

			Keyway, mm
	For Shaft Dia., mm	Overall Wd., mm	Wd.	Dp.	Taper	Fastener Tightening Torque, in·lbf	Includes		Each
Steel







				Bushing Trade Number 2012

				42	32	12	3.3	8°	280	Set Screws	57095K559	000000




						Bushing Trade Number 2517

						42	44	12	3.3	8°	430	Set Screws	57095K587	00000

Oil-Embedded Sleeve Bearings

Install and forget these self-lubricating bearings. All are made from porous metal and saturated with oil to reduce maintenance and downtime. A good all-around choice, they are used in everything from palm-sized fans in electronics to tire-sized pulleys. Although these bearings will work in most conditions, oil may drip away if temperatures get too high. Consider a graphite-lubricated bearing for higher temperatures or places where you can’t afford the mess. All are fabricated, lubricated, and inspected in the U.S.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

Synthetic Oil Base—A high-quality lubricant makes all the difference. Synthetic oil is less sensitive to temperature changes than mineral oil, so it won't get runny and leak away at higher temperatures.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	42	48	50	6,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6658K315	000000

Dry-Running Sleeve Bearings

Made of naturally slippery plastic so you’ll never have to add lubricant. They’re ideal for clean environments where you need to prevent oil drips or graphite flakes. Compared to metal bearings, they are lighter and will never rust.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

Nylon—The most popular choice, nylon is wear resistant yet economical. Keep in mind, though, that it will swell and weaken when exposed to moisture.

								Each
	For Shaft Dia., mm	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
Nylon



		42	48	50	620 lb. @ 30 rpm	Off-White	-10 to 220	6389K949	000000	000000	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.

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

	3 3/4"	L150	4 1/2"	Set Screw	42 mm	6408K19	0000000




			Steel

			85 mm	L110	108 mm	Set Screw	42 mm	6133N19	00000


			115 mm	L190	124 mm	Set Screw	42 mm	6133N22	000000
			127 mm	L225	137 mm	Set Screw	42 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.

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



		3 21/64", 85 mm	L110	5,000	790	0.015"	1°	6408K79	000000


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


		Polyurethane Rubber



				3 3/4"	L150	3,600	1,860	0.015"	1°	2410K19	000000


				Hytrel



						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
						5", 127 mm	L225	4,200	6,225	0.015"	0.5°	6408K64	000000

Dry-Running Metal-Reinforced Plastic Thrust Bearings

Combine naturally slippery PTFE with the strength of metal. These bearings don't need lubricant, so there's no oil to maintain, drip off, or attract dust. Backed with steel, they're as strong as other all-metal thrust bearings. However, they're best for dry environments since moisture will cause the steel to rust.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
Steel-Backed PTFE



	42	66	1.5	7,700 lb. @ 30 rpm	-320 to 530	1262N19	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	42 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

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.

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
Blue Passivated Zinc-Plated Carbon Steel



		42	63	18	Hex Socket	1	6057N38	000000


		Carbon Steel



				42	63	18	Hex Socket	1	6056N38	00000


				303 Stainless Steel



						42	63	18	Hex Socket	1	6058N38	00000

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 5/8"	7S	3 15/16"	Set Screw	42 mm	6507K5	000000


	5 29/64"	8S	4 7/16"	Set Screw	42 mm	6507K12	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 5/8"	7S	5,250	725	0.02"	1°	0.125"	6507K74	000000


		5 29/64"	8S	4,500	1,135	0.02"	1°	0.125"	6507K75	00000

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.

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.

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

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



		42	73	19	Socket Head	2	6063K56	000000


		Zinc-Plated Carbon Steel



				42	73	19	Socket Head	2	5731N26	00000


				303 Stainless Steel



						42	73	19	Socket Head	2	9731N22	000000


						Aluminum



								42	73	19	Socket Head	2	7731N21	00000


								Black Anodized Aluminum



										42	73	19	Socket Head	2	3731N46	00000

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



		42	100	19	Socket Head	1	1511K27	0000000

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.

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



		42	73	19	Socket Head	1	57445K429	000000


		Aluminum



				42	73	19	Socket Head	1	9506T329	00000