2 1/2" Bearings | McMaster-Carr

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For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

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Thrust

Mounted Bearing Type

Base Mount

Four-Bolt Flange Mount

Dynamic Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

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For Housing ID

Static Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 99,999 lb.

Length

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Material

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Dynamic Thrust Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

Inner Ring Type

Extended

Standard

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Single Row

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

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53 Products

Four-Point Angular Contact Ball Bearings

Support complex movement in multiple directions with a single compact bearing. The balls distribute weight at four points, so these bearings handle radial, thrust, and moment loads all at once. For example, you’ll often find them in robot arms, which rotate, extend, and twist while supporting an object’s weight. Thinner than two standard angular contact ball bearings paired together, these bearings squeeze into tight spaces. They’re commonly paired with large hollow shafts to run electrical wire and other lines.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

					Dynamic Load Cap.					Temp. Range, ° F
	For Shaft Dia.	For Housing ID	Wd.	ABEC Rating	Radial, lb.	Thrust, lb.	Moment, ft·lbf	Max. Rotation Speed, rpm	Contact Angle	Min.	Max.	Inner Ring Type		Each
Open







				Steel

				2 1/2"	3"	1/4"	1F	580	910	50	1,200	30°	-60	250	Standard	6656K12	0000000


				2 1/2"	3 1/8"	5/16"	1F	840	1,250	70	1,200	30°	-60	250	Standard	6656K21	000000

Quick-Mount Ball Bearings

Set-Screw

Shaft Mount

Slip onto a shaft and secure with the turn of a screw. You don't need any special tools to mount these bearings.

Set-Screw Shaft Mount—Tighten the screws against the shaft to hold the bearing in place. For high-speed applications, consider clamp-on shaft mounts, which are less likely to slip.

Black-Oxide Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

				Retaining Ring						Temp. Range, ° F
	For Shaft Dia.	For Housing ID	Wd.	OD	Thk.	Bearing Seal Type	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Bearing Trade No.		Each
Set-Screw Shaft Mount







				Black-Oxide Steel

				2 1/2"	4 59/64"	1 3/8"	5 9/32"	0.109"	Sealed	1	13,950	2,500	-20	220	ER40	8090T44	0000000

Tapered-Roller Bearings

Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.

					Radial Load Cap., lb.		Thrust Load Cap., lb.
	For Shaft Dia.	For Housing ID	Wd.	Bearing Trade No.	Dynamic	Static	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		2 1/2"	4 1/4"	3/4"	29585/29520	7,600	36,300	5,950	48,400	1,700	Required	-60 to 200	5709K907	0000000

Mounted Ball Bearings with Four-Bolt Flange

Smoother than smooth—the balls inside these bearings roll nearly friction-free. The four-bolt flange supports shafts with a stronger connection to the mounting surface than two-bolt alternatives.

Lubricate regularly to keep your bearing in tip-top shape. Bearings with seals keep lubricants in and contaminants out, and come packed with grease. Open bearings require initial lubrication and offer less protection against dust and debris.

Powder-Coated Cast Iron Housing—A rugged iron base coated in thick powder that protects against water, mild detergents, and oil. However, if the coating is scratched or chipped, the underlying iron may rust.

Nickel-Plated Cast Iron Housing—Combine the strength of iron with the corrosion resistance of stainless steel at an affordable price point. Nickel-plated iron is also unlikely to chip.

Set Screw—Turn the screw to lock your shaft in place. A simple, reliable choice, set screws grip tightly, but they can mar shaft surfaces.

SKF—Manufactured in Europe with a strong focus on precision. The more precise the bearing, the more efficiently it will run.

Misalignment Capability—Bearings compensate for as much shaft misalignment as the degree listed. This extends the life of the bearing and protects against wear if shafts are slightly askew.

	Bearings												Replacement Bearings
		Overall
	For Shaft Dia.	Lg.	Wd.	Flange Thk.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability	Manufacturer		Each		Each
Powder-Coated Cast Iron Housing







				Set Screw

				2 1/2"	7 3/8"	3 3/16"	7/8"	12,800	3,000	Steel	Sealed	2°	SKF	5967K115	0000000	5967K75	0000000


				Nickel-Plated Cast Iron Housing







								Set Screw

								2 1/2"	7 3/8"	2 3/4"	7/8"	12,850	2,000	Steel	Sealed	1.5°	McMaster-Carr Approved	6494K64	000000	———	0

Mounted Ball Bearings

Smoother than smooth—the balls inside these bearings roll nearly friction-free. The sturdy housing bolts down to support shafts as they turn.

Lubricate regularly to keep your bearing in tip-top shape. Bearings with seals and shields keep lubricants in and contaminants out, and come packed with grease. Open bearings require initial lubrication and offer less protection against dust and debris.

Nickel-Plated Cast Iron Housing—Combine the strength of iron with the corrosion resistance of stainless steel at an affordable price point. Nickel-plated iron is also unlikely to chip.

Set Screw—Turn the screw to lock your shaft in place. A simple, reliable choice, set screws grip tightly, but they can mar shaft surfaces.

Misalignment Capability—Bearings compensate for as much shaft misalignment as the degree listed. This extends the life of the bearing and protects against wear if shafts are slightly askew.

			Overall
	For Shaft Dia.	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability	Manufacturer		Each
Nickel-Plated Cast Iron Housing







				Set Screw

				2 1/2"	3"	10 7/16"	2 15/16"	12,850	2,000	Steel	Sealed	2°	McMaster-Carr Approved	6494K86	0000000

Shaft Liners for Precision Needle-Roller Bearings

Adapt high-precision needle-roller bearings to use on unhardened, unground shafts. The liner fits between the roller and the shaft.

For Shaft Dia.	OD	Wd.	Ring Material	Lubrication		Each
2 1/2"	3"	1.76"	Steel	Required	7929K505	000000

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.

High-Load 863 Iron Copper—Iron makes these bearings harder, stronger, and more resistant to sudden starts and stops than 841 bearing bronze. However, they operate at slower speeds. The increased iron content makes these bearings appear silver.

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



	2 1/2"	2 3/4"	2"	10,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K837	000000


	2 1/2"	2 3/4"	2 1/2"	12,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K688	00000
	2 1/2"	2 3/4"	3"	15,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K836	00000
	2 1/2"	2 7/8"	2 1/4"	11,250 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K838	00000
	2 1/2"	2 7/8"	2 1/2"	12,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K689	00000
	2 1/2"	2 7/8"	3"	15,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K839	00000
	2 1/2"	3"	2"	10,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K842	00000
	2 1/2"	3"	2 1/2"	12,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K691	00000
	2 1/2"	3"	3"	15,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K841	00000
	2 1/2"	3"	4"	20,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K428	000000


	High-Load 863 Iron Copper



			2 1/2"	3"	4"	17,800 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T274	00000

Easy-Access Mounted Sleeve Bearings

Lift the top off to install, inspect, and maintain your shaft without full disassembly. Inside, the sleeve is made from babbitt, a tough, corrosion-resistant alloy. With no moving parts, sleeve bearings stand up to dusty, dirty environments better than ball or roller bearings. However, with more friction generated, they're less effective at high speeds. The sturdy housing bolts down to support shafts as they turn.

Lubricate regularly through the housing's lubrication port to keep your bearing in tip-top shape. The grooves help to evenly distribute lubrication across the bearing's surface.

			Overall
	For Shaft Dia.	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap. @ Speed		Each
Babbitt Bearing with Powder-Coated Cast Iron Housing



		2 1/2"	2 1/8"	8 7/8"	5"	1,730 lb. @ 30 rpm	6359K49	0000000

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.

High-Load Ultra-Chemical-Resistant Polyester Fabric-Reinforced PTFE—Woven polyester resin reinforces these PTFE bearings to support loads and speeds comparable to metal bearings. Similar to other PTFE options, they are unaffected by the harsh fluids that other plastics can't handle, including all strong acids and bases.

								Each
	For Shaft Dia.	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
High-Load Ultra-Chemical-Resistant Polyester Fabric-Reinforced PTFE



		2 1/2"	2 3/4"	2 1/2"	7,950 lb. @ 30 rpm	Blue	-40 to 150	1521N22	000000	000000	000000


		2 1/2"	3 1/4"	3 3/4"	11,900 lb. @ 30 rpm	Blue	-40 to 150	1521N29	000000	000000	000000

Precision Needle-Roller Bearings


	Bearing

Install these bearings directly onto hardened and ground shafts. They have higher load capacity, speed, and accuracy than standard needle-roller bearings.

Open Bearing—Open bearings dissipate heat more efficiently than sealed bearings.

Sealed Bearing—Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.

Shaft Liners—Shaft liners allow you to use the bearing on unhardened and unground shafts.

	Bearings												Shaft Liners
				Radial Load Cap., lb.
	For Shaft Dia.	For Housing ID	Wd.	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F	Features		Each	For Shaft Dia.		Each
For Radial Load—Open with Steel Ring



		2 1/2"	3 1/4"	1 1/2"	15,800	36,400	5,300	Required	16	0 to 245	Lubrication Groove, Lubrication Hole	7929K203	000000	—	———	0


		For Radial Load—Sealed with Steel Ring



				2 1/2"	3 1/4"	1 3/4"	15,800	36,400	1,500	Required	16	-30 to 250	Lubrication Groove, Lubrication Hole	8258K103	000000	2"	7929K504	000000

Sleeve Bearings

These bearings don’t come with a lubricant, so you can select the oil that meets the needs of your application. You’ll need to refill the oil, so make sure the bearing is located where you can access it. All are fabricated 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.

High-Load 932 Bearing Bronze—These bearings are strong enough for sudden starts and stops, plus they resist wear and tear. They are cast from an alloy of leaded tin bronze for uniform rigidity and strength. Also known as 660 leaded bronze bearings.

High-Load Chemical-Resistant 954 Bearing Bronze—The strongest of our bronze bearings. The addition of iron and aluminum makes them exceptionally strong and resistant to chemicals. They’re often used in the most demanding environments, such as salt mines. Also known as aluminum bronze.

	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	2 1/2"	3"	4"	38,150 lb. @ 30 rpm	-350 to 450	6381K578	000000


	2 1/2"	3"	5"	47,700 lb. @ 30 rpm	-350 to 450	6381K391	00000


	High-Load Chemical-Resistant 954 Bearing Bronze



			2 1/2"	2 3/4"	2"	22,500 lb. @ 30 rpm	-350 to 500	2867T244	00000

Mounted Tapered-Roller Bearings with Four-Bolt Flange

Support heavier loads than mounted ball bearings, but at lower speeds. These bearings also withstand thrust loads, which are forces acting parallel to the shaft. The four-bolt flange supports shafts with a stronger connection to the mounting surface than two-bolt alternatives.

Lubricate your bearings regularly to keep them in tip-top shape. These bearings come packed with grease and sealed to block out dust and contaminants.

Set Screw—Turn the screw to lock your shaft in place. A simple, reliable choice, set screws grip tightly, but they can mar shaft surfaces.

		Overall			Dynamic Load Cap., lb.
	For Shaft Dia.	Lg.	Wd.	Flange Thk.	Radial	Thrust	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type		Each
Powder-Coated Cast Iron Housing







				Set Screw

				2 1/2"	6 7/8"	4 3/16"	1 1/2"	11,600	3,450	2,400	Steel	Sealed	1498N15	0000000

One-Piece Thrust Ball Bearings

No need to assemble cages and washers—these thrust ball bearings come as one piece for easy installation. The balls spin inside a raceway instead of a cage, so there's room for more balls to support higher loads than three-piece bearings. An outer band holds the balls inside the raceway, keeping lubricant in and dirt out.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

	OD	Thk.	Cage Material	Dynamic Thrust Load Cap., lb.	Max. Rotation Speed, rpm	Temp. Range, ° F		Each
Steel



	2 1/2"	3 31/32"	13/16"	Steel	11,500	1,800	-40 to 245	60715K52	000000

Needle-Roller Thrust Bearings

Bearings

Washers

Small but mighty, our thinnest rolling thrust bearings slot into tight spaces and spin at whirring speeds. Their long, slender rollers support thrust loads and reduce friction in everything from machine tool spindles to gearboxes.

A cage holds the rollers in place. You can install these bearings without washers between hardened, ground surfaces for the thinnest profile. If you’re working with unhardened, unground surfaces, you’ll need two washers for the rollers to run on. This three-piece design is easy to lubricate, but the oil will attract dust and grime since it’s exposed.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

	Thrust Bearings									Thin Washers
	For Shaft Dia.	OD	Thk.	Cage Material	Dynamic Thrust Load Cap., lb.	Max. Rotation Speed, rpm	Temp. Range, ° F		Each	Thk.		Each
Steel



		2 1/2"	3 1/4"	5/64"	Steel	6,200	3,300	0 to 240	5909K27	000000	0.032"	5909K271	00000

High-Temperature Graphite-Lubricated Sleeve Bearings

Made of a graphite and metal alloy, these bearings stay slippery at high temperatures where oil burns off and other bearings fail. With no need for refills, they require little to no maintenance. You’ll find them in pumps, propellers, and mixers that spin near steam or inside ovens. However, graphite may eventually flake off, dropping flecks and leaving smudges. If you need a spic-and-span space, consider dry-running bearings made of slippery plastic instead. 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.

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



	2 1/2"	3"	4"	16,000 lb. @ 30 rpm	-50 to 700	9368T255	0000000

Insert Bearings


Install by hand into a housing (sold separately)

Swap out worn inserts instead of replacing the entire mounted unit. To choose an insert, match the manufacturer model number on your existing bearing.

Set-Screw Shaft Mount—Tighten the screws against the shaft to hold the bearing in place, regardless of the direction the shaft spins.

				Temp. Range, ° F
	For Shaft Dia.	For Mounted Bearing Model No.	Bearing Material	Min.	Max.		Each
For SKF Mounted Bearings







				Set-Screw Shaft Mount

				2 1/2"	F4B 208-TF, FY 2.1/2 TF, FYT 2.1/2 TF	Steel	-20	210	5967K75	0000000

Washers for Needle-Roller Thrust Bearings

Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.

For Shaft Dia.	OD	Thk.	Washer Material		Each
2 1/2"	3 1/4"	0.032"	Steel	5909K271	00000

Mounted Tapered-Roller Bearings

Support heavier loads than mounted ball or needle-roller bearings, but at lower speeds. These bearings also withstand thrust loads, which are forces acting parallel to the shaft. The sturdy housing bolts down to support shafts as they turn.

Lubricate your bearings regularly to keep them in tip-top shape. These bearings come packed with grease and sealed to block out dust and contaminants.

Set Screw—Turn the screw to lock your shaft in place. A simple, reliable choice, set screws grip tightly, but they can mar shaft surfaces.

			Overall		Dynamic Load Cap., lb.
	For Shaft Dia.	Ctr. Ht.	Lg.	Wd.	Radial	Thrust	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type		Each
Powder-Coated Cast Iron Housing







				Set Screw

				2 1/2"	2 3/4"	10 1/2"	4"	11,600	3,450	2,400	Steel	Sealed	1495N19	0000000

High-Temperature Graphite-Lubricated Thrust Bearings

Keep parts spinning in temperatures as hot as 750° F. Lubricated with graphite, these bearings stay slippery where oil would burn off or solidify. You can install and forget them since the lubricant lasts forever. All are fabricated, lubricated, and inspected in the U.S.

Extreme-Temperature Chemical-Resistant Graphalloy—From the freezer to the furnace, these bearings glide in extreme temperatures where other bearings grind and fail. They withstand strong acids and bases found in cleaning fluids. They even work underwater without swelling or warping.

	OD	Thk.	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
Extreme-Temperature Chemical-Resistant Graphalloy



	2 1/2"	4 7/16"	31/64"	3,000 lb. @ 36 rpm	-450 to 750	4457N16	0000000

Rotary and Linear Ball Bearings


	Fixed Alignment Without End Seals

Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts. The fixed-alignment design is for use where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).

Bearings without a maximum stroke length are only limited by the length of shaft they're used on.

	Bearings											Retaining Rings
	For Shaft Dia.	Overall Lg.	For Housing ID	Retaining Ring Groove End-to-End Lg.	Dynamic Load Cap., lb.	Dynamic Rotary Load Cap. @ Speed	Max. Rotation Speed, rpm	Max. Temp., ° F	For Shaft Material		Each		Each
Fixed Alignment







				Steel Bearings without End Seals

				2 1/2"	5"	3.7500" to 3.7510"	3.99"	1,800	750 lb. @ 500 rpm	2,400	200	Stainless Steel, Steel	6485K21	0000000	9968K79	000000

Oil-Embedded Thrust Bearings

Our simplest-to-use thrust bearings, with no moving parts and no need to lubricate. Their porous surface releases oil over time, so you can install and forget them. While they run in most conditions, oil may drip away if temperatures climb too high. For extremely hot environments, consider graphite-lubricated bearings. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A balance of strength and speed makes these bearings a good choice for most applications. Also known as SAE 841 bearing bronze.

	OD	Thk.	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	2 1/2"	3 1/4"	1/8"	6,600 lb. @ 30 rpm	Synthetic Oil	-35 to 300	5906K589	000000

Thrust Bearings

With no moving parts, these bearings are the plainest way to support thrust loads while reducing friction. They don't come with lubricant, so you can choose the oil that's best for your application. Make sure to mount them where they're easy to access, since you'll need to replenish the oil frequently. All are fabricated and inspected in the U.S.

High-Load 932 Bearing Bronze—Cast from an alloy of leaded tin bronze for uniform rigidity and strength. Also known as 660 leaded bronze.

	OD	Thk.	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	2 1/2"	3 1/4"	1/8"	Not Rated	-350 to 450	7814K446	000000

Ultra-Low-Friction Oil-Embedded Thrust Bearings

Our slipperiest metal thrust bearings glide on machines with frequent starts and stops, such as conveyors. Their oil contains nonstick PTFE particles that reduce wear and heat, extending the life of your equipment. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A balance of strength and speed makes these bearings a good choice for most applications. Also known as SAE 841 bearing bronze.

High-Load 863 Iron Copper—Iron makes these bearings harder, stronger, and more resistant to sudden starts and stops than 841 bearing bronze. However, they run at slower speeds. The increased iron content also makes them appear silver.

	OD	Thk.	Dynamic Thrust Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	2 1/2"	3 1/4"	1/8"	6,600 lb. @ 30 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	7421K135	000000


	High-Load 863 Iron Copper



			2 1/2"	3 1/4"	1/8"	4,500 lb. @ 30 rpm	Synthetic Oil	PTFE	-60 to 300	—	7380N169	00000

Quick-Disconnect (QD) Bushings


Clamp-On 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.

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







				Bushing Trade Number SF

				2 1/16"	5/8"	3/16"	360	Sintered Steel	Clamping Screws, Machine Key	2 1/2"	6086K638	000000




						Bushing Trade Number SK

						1 15/16"	5/8"	1/16"	180	Sintered Cast Iron	Clamping Screws, Machine Key	2 1/2"	6086K534	00000

Self-Adjusting Spring Bushings

A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.

	Overall Wd.	Material		Each
For 2 1/2" Diameter Shafts



	3"	1 1/2"	Steel	58365K74	000000


	3"	2"	Steel	58365K75	00000
	3"	3"	Steel	58365K77	00000

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







				Bushing Trade Number 2517

				2 1/2"	1 3/4"	5/8"	3/16"	8°	430	Machine Key, Set Screws	57095K221	000000




						Bushing Trade Number 3020

						2 1/2"	2"	5/8"	5/16"	8°	800	Set Screws	57095K335	000000


						Cast Iron







										Bushing Trade Number 3030

										2 1/2"	3"	5/8"	5/16"	8°	800	Set Screws	57095K655	000000




												Bushing Trade Number 3535

												2 1/2"	3 1/2"	5/8"	5/16"	8°	1,000	Set Screws	57095K384	000000




														Bushing Trade Number 4040

														2 1/2"	4"	5/8"	5/16"	8°	1,700	Set Screws	57095K721	000000




																Bushing Trade Number 4545

																2 1/2"	4 1/2"	5/8"	5/16"	8°	2,450	Set Screws	57095K757	000000