1 15/16" ID Bearings | McMaster-Carr

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

				1 15/16"	3 35/64"	1 1/8"	3.781"	0.094"	Sealed	Not Rated	7,900	5,000	-20	250	ER31	8090T18	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.

Clamp On—Tighten the clamping screw to close the collar around your shaft for a secure, mar-free grip. The collar centers the shaft, decreasing vibration and allowing for higher speeds than set screws. Also known as concentric lock bearings.

Eccentric Lock—An off-center opening wedges against the shaft to grip it as it turns. Eccentric locks won't mar the shaft like a set screw, but the shaft will only rotate in one direction, so they aren't suitable for applications where the load will be reversed.

Sealmaster—Famous for exceptional sealing, Sealmaster bearings include a signature three-part seal in the inner ring. This design blocks out gritty debris and purges old grease to extend the life of the bearing.

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

				1 15/16"	5 5/8"	2 27/64"	5/8"	7,850	4,000	Steel	Sealed	2°	SKF	5967K92	0000000	5967K23	0000000




						Clamp On

						1 15/16"	5 5/8"	2 7/32"	9/16"	7,850	5,000	Steel	Sealed	2°	Sealmaster	3710T57	000000	———	0




								Eccentric Lock

								1 15/16"	5 5/8"	2 7/16"	21/32"	7,850	4,000	Steel	Sealed	2°	SKF	4071N53	000000	———	0


								Nickel-Plated Cast Iron Housing







												Set Screw

												1 15/16"	5 5/8"	2 5/32"	5/8"	7,890	2,500	Steel	Sealed	1.5°	McMaster-Carr Approved	6494K62	00000	———	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.

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.	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability	Manufacturer		Each		Each
Powder-Coated Cast Iron Housing







				Clamp On

				1 15/16"	2 1/4"	8 1/8"	2 3/16"	7,900	4,000	Steel	Shielded	2°	SKF	2722T27	0000000	———	0




						Eccentric Lock

						1 15/16"	2 3/16"	8 1/8"	2 3/8"	7,850	4,000	Steel	Sealed	2°	SKF	6361K47	000000	6361K227	0000000


						Nickel-Plated Cast Iron Housing







										Set Screw

										1 15/16"	2 1/4"	8 1/8"	2 15/32"	7,850	2,500	Steel	Sealed	2°	McMaster-Carr Approved	6494K81	00000	———	0

Insert Bearings

Install by hand into a housing (sold

separately)

Image of Product. Front orientation. Ball Bearings. Insert Bearings.

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.

Eccentric-Lock Shaft Mount—Twist the collar one way to tighten these bearings and the other way to loosen. They're a good choice when you need to take your setup apart frequently. However, they only turn one way, so they won't work with shafts that reverse.

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.

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







				Set-Screw Shaft Mount

				1 15/16"	F2B 115-TF, F4B 115-TF, FYT 1.15/16 RM	Steel	—	-20	210	5967K23	0000000




						Eccentric-Lock Shaft Mount

						1 15/16"	P2BL 115-WF, SYH 1.15/16 WF	Steel	—	-20	210	6361K227	000000


						For Sealmaster Mounted Bearings







										Set-Screw Shaft Mount

										1 15/16"	FB-31, NP-31, NPG-31-12, NPG-31-18, NPL-32, SC-31, SCHB-31, SEHB-31, SF-31, SFC-31, SFT-31, SP-31, ST-31, STH-31-12, STH-31-18, TB-31	Steel	1	-20	220	7728T126	000000

Mounted Ball Bearings with Two-Bolt Flange

Smoother than smooth—the balls inside these bearings roll nearly friction-free. The sturdy housing supports the shaft and secures with a two-bolt flange, the most common type of flanged bearing.

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

				1 15/16"	7 7/16"	2 15/32"	9/16"	7,850	4,000	Steel	Sealed	2°	SKF	5968K84	0000000	5967K23	0000000




						Clamp On

						1 15/16"	7 7/16"	2 7/32"	9/16"	7,850	5,000	Steel	Sealed	2°	Sealmaster	3710T47	000000	———	0




								Eccentric Lock

								1 15/16"	7 7/16"	2 15/32"	9/16"	7,850	4,000	Steel	Sealed	2°	SKF	5968K131	000000	———	0

Easy-Access Mounted Cylindrical-Roller Bearings

Thick, long rollers handle the highest loads of any mounted bearing we offer. Install them with confidence into coal crushers, sludge presses, wood hogs, and other demanding applications. The top lifts off for quick access when you need to install or maintain the shaft. The sturdy housing bolts down to support shafts as they turn.

Lubricate regularly to keep your bearing in tip-top shape, including upon installation. Seals hold lubricant in while keeping dust and contaminants out.

For Radial Loads—Accommodate minor changes in the length of your shaft as it expands and contracts from nearby machinery heat. They're typically positioned away from the drive end in assemblies with long shafts.

For Combined Radial and Thrust Loads—Secure shafts in place and absorb the thrust load. However, these bearings are not designed to handle shafts that expand or contract. They're typically positioned near the drive side of an assembly.

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







				For Radial Loads

				1 15/16"	2 3/4"	10 5/8"	2 3/8"	18,290	—	5,420	Steel	Sealed	Clamp On	3°	4496N11	000000000	4496N13	0000000




						For Combined Radial and Thrust Loads

						1 15/16"	2 3/4"	10 5/8"	2 3/8"	18,290	280	5,420	Steel	Sealed	Clamp On	3°	4496N12	00000000	4496N14	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.

Inch

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



	SNW-11	1 15/16"	1 15/16"	1.855"	Lock Nut, Lock Washer	4449N17	000000

Light Duty Dry-Running Mounted Sleeve Bearings

With simple, lightweight designs, these bearings are a cost-effective option when extreme precision isn't necessary. Less stable than bearings with forged, one-piece housings, they're good for hand-cranked systems, gravity feed conveyor rollers, and other low-speed applications. The sleeve inside is made from naturally slick plastic, so there's no messy grease to drip off, wash out, or collect dust. With no moving parts, sleeve bearings stand up to grimy environments better than ball bearings. However, with more friction generated, they're less effective at high speeds.

UHMW Polyethylene Housing—Virtually impervious to moisture, these solid plastic housings keep their shape during washdowns. However, they aren't suitable for steam cleanings and other high-temperature treatments.

			Overall
	For Shaft Dia.	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap. @ Speed		Each
UHMW Polyethylene Bearing with UHMW Polyethylene Housing



		1 15/16"	2 1/4"	8"	2"	500 lb. @ 30 rpm	6254K27	000000

Permanently Lubricated Mounted Ball Bearings

Reduce upkeep with bearings that never need lubrication. Inside, an oil-infused solid polymer fills the spaces between the balls to keep them rolling nearly friction-free. The polymer releases the optimal amount of lubricant on startup—never too much or too little. The embedded oil never leaks out, and seals keep dust and contaminants from sneaking in. The sturdy housing bolts down to support shafts as they turn.

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		Each
Powder-Coated Cast Iron Housing







				Set Screw

				1 15/16"	2 1/4"	8 1/8"	2 3/8"	7,900	2,900	Steel	Sealed	2°	5057N4	0000000

Food-and-Beverage Mounted Ball Bearings

With NSF-registered H1 grease, these bearings are safe for use on food and beverage lines. Install them into conveyors, packaging systems, and other food processing applications where contact with ingredients is rare but possible. The balls roll nearly friction free within a sturdy housing to support smooth rotation.

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

316 Stainless Steel Housing—The most corrosion-resistant metal we offer, these housings hold up to harsh chemicals and salt water.

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.

Closed Caps—Mount on the end of the shaft to block out debris and prevent accidental contact with rotating parts.

Open Caps—Install anywhere along the shaft to block out debris and prevent accidental contact with rotating parts.

	Bearings													Closed Caps		Open Caps
			Overall
	For Shaft Dia.	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability	Enclosure Rating	Manufacturer		Each		Each		Each
316 Stainless Steel Housing







				Set Screw

				1 15/16"	2 1/4"	8 1/8"	2 15/32"	7,850	1,500	Steel	Sealed	2°	IP69K	Sealmaster	5044N28	0000000	5135N29	000000	5135N19	000000




						Clamp On

						1 15/16"	2 1/4"	8 1/8"	2 15/32"	7,850	1,500	Steel	Sealed	2°	IP69K	Sealmaster	5044N44	000000	5135N29	00000	5135N19	00000

Mounted Ball Bearings with Three-Bolt Flange

Smoother than smooth—the balls roll nearly friction-free within a sturdy housing to support shafts as they turn. A good choice for tight spaces, these bearings mount with a three-bolt flange that only requires access from one side during installation.

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

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.	Flange Thk.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability		Each
Nickel-Plated Cast Iron Housing







				Set Screw

				1 15/16"	4 17/32"	4 13/32"	2 1/16"	23/32"	7,850	2,500	Steel	Sealed	3°	8260K55	000000

Extra-Clearance Mounted Ball Bearings

Good for bulky setups, the tall design doubles the clearance between the shaft and the mounting surface. The balls roll nearly friction-free within a sturdy housing to support smooth rotation.

Lubricate regularly to keep your bearings 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.

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		Each
Powder-Coated Cast Iron Housing







				Set Screw

				1 15/16"	4 21/64"	8 1/8"	2 3/4"	7,850	2,500	Steel	Sealed	2°	4453N32	000000

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



	1 15/16"	3 7/32"	13/16"	Steel	10,800	2,200	-40 to 245	60715K47	000000

Tapped-Base Mounted Ball Bearings

Smoother than smooth—the balls roll nearly friction-free within a sturdy housing to support shafts as they turn. These bearings mount from the bottom through threaded holes. With a narrow profile, they're a good fit for cramped spots where multiple shafts are mounted close together.

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

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
Powder-Coated Cast Iron Housing







				Clamp On

				1 15/16"	2 1/4"	5 1/2"	2"	7,880	5,000	Steel	Sealed	2°	Sealmaster	7366N148	0000000

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 SD

				1 13/16"	1/2"	1/16"	108	Sintered Cast Iron	Clamping Screws, Machine Key	1 15/16"	6086K429	000000




						Bushing Trade Number SDS

						1 3/8"	1/2"	1/16"	108	Sintered Cast Iron	Clamping Screws, Machine Key	1 15/16"	6086K854	00000




								Bushing Trade Number SF

								2 1/16"	1/2"	1/4"	360	Sintered Steel	Clamping Screws	1 15/16"	6086K633	00000




										Bushing Trade Number SK

										1 15/16"	1/2"	1/4"	180	Sintered Steel	Clamping Screws	1 15/16"	6086K529	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 2012

				1 15/16"	1 1/4"	1/2"	3/16"	8°	280	Machine Key, Set Screws	57095K313	000000




						Bushing Trade Number 2517

						1 15/16"	1 3/4"	1/2"	1/4"	8°	430	Set Screws	57095K236	00000




								Bushing Trade Number 3020

								1 15/16"	2"	1/2"	1/4"	8°	800	Set Screws	57095K322	00000


								Cast Iron







												Bushing Trade Number 3030

												1 15/16"	3"	1/2"	1/4"	8°	800	Set Screws	57095K642	000000




														Bushing Trade Number 3535

														1 15/16"	3 1/2"	1/2"	1/4"	8°	1,000	Set Screws	57095K372	000000




																Bushing Trade Number 4040

																1 15/16"	4"	1/2"	1/4"	8°	1,700	Set Screws	57095K713	000000

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

	OD	Overall Wd.	Max. Torque, in·lbf	Fastener Tightening Torque, in·lbf	Includes		Each
Steel



	1 15/16"	3 3/16"	1 17/64"	15,400	360	Clamping Screws	2328K19	0000000

Hub-Mount Screw-Clamp Bushings

Transfer torque directly from a shaft to a hub. These bushings install over your hub to mount a sprocket, pulley, or gear to a shaft at the same time. Common in industrial gearbox applications, they can also connect a hollow shaft over a solid shaft. As screw-clamp bushings, they're good for shock loads. When you tighten the included clamping screws, the outer rings compress against a sprocket, pulley, or gear in between them, causing the inner rings to tighten around the shaft.

	OD	Overall Wd.	Max. Torque, in·lbf	Fastener Tightening Torque, in·lbf		Each
Zinc-Plated Steel



	1 15/16"	3 9/16"	1 3/16"	11,550	100	7654N15	0000000