2 7/16" Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

Mounted Bearing Type

Four-Bolt Flange Mount

Thread Mount

Two-Bolt Flange Mount

Shaft Mount Type

Housing Material

Dynamic Radial Load Capacity

10,000 lb. to 19,999 lb.

20,000 lb. to 29,999 lb.

Center Height

Overall Length

Mounting Hole Center-to-Center

Maximum Rotation Speed

Bearing Seal Type

Environment

High-Pressure Washdown

Bearing Type

Bearing Trade Number

Manufacturer

Grease Fitting Included

Yes

For Load Direction

Combined Radial and Thrust

Material

Alignment Style

REACH

RoHS

Export Control Classification Number (ECCN)

1C999

EAR99

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

Yes

DFARS Specialty Metals

49 Products

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.

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.

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.

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







				Set Screw

				2 7/16"	2 3/4"	9 1/2"	2 3/4"	11,700	3,000	Steel	Sealed	2°	Sealmaster	7728T67	0000000	7728T131	0000000




						Clamp On

						2 7/16"	2 3/4"	9 1/2"	2 3/4"	11,700	4,100	Steel	Sealed	2°	Sealmaster	2722T43	000000	———	0


						Nickel-Plated Cast Iron Housing







										Set Screw

										2 7/16"	2 3/4"	9 1/2"	2 15/16"	11,750	2,000	Steel	Sealed	2°	McMaster-Carr Approved	6494K85	000000	———	0

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.

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.

		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
Powder-Coated Cast Iron Housing







				Set Screw

				2 7/16"	6 7/8"	2 29/32"	23/32"	11,800	3,400	Steel	Sealed	2°	SKF	5967K244	0000000

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.

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.

				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 7/16"	4 21/64"	1 1/4"	4 37/64"	0.094"	Sealed	1	11,750	3,000	-20	220	ER39	8090T43	0000000

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.

		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
Powder-Coated Cast Iron Housing







				Set Screw

				2 7/16"	9 1/4"	2 29/32"	13/16"	11,800	3,400	Steel	Sealed	2°	SKF	5968K116	0000000

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

				2 7/16"	2 3/4"	9 1/2"	2 15/16"	11,800	2,400	Steel	Sealed	2°	5057N9	0000000

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.

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







				Set-Screw Shaft Mount

				2 7/16"	NP-39, NPG-39-12, NPG-39-18, NPL-39, SC-39, SCHB-39, SEHB-39, SF-39, SFC-39, SP-39, ST-39, STH-39-12, STH-39-18	Steel	1	-20	220	7728T131	0000000

Screw Conveyors

Add on to an existing screw conveyor or keep it running like new.

Screws

Screws are designed for right-hand operation. Screws with a thicker edge offer longer service life for abrasive materials.

	Lg.	Edge Thk.	Shaft Dia.	Pitch		Each
Steel



	12"	141"	3/16"	2 7/16"	12"	5866K27	000000000


	14"	141"	1/8"	2 7/16"	14"	5866K28	000000


	Stainless Steel



			12"	141"	3/16"	2 7/16"	12"	5866K516	00000000


			14"	141"	3/16"	2 7/16"	14"	5866K517	00000000

Coupling Shafts

Coupling shafts connect two screws together.

		Each
Steel



	2 7/16"	5866K39	0000000


	Stainless Steel



			2 7/16"	5866K916	000000

End Shafts

End shafts support the end conveyor section.

		Each
Steel



	2 7/16"	5866K53	0000000


	Stainless Steel



			2 7/16"	5866K921	000000

Coupling Bolts

Coupling bolts connect shafts to the screw.

	Pkg. Qty.		Pkg.
Steel



	2 7/16"	4	5866K42	000000


	Stainless Steel



			2 7/16"	1	5866K931	00000

End-Shaft Seals

End-shaft seals prevent material contamination and discharge.

		Each
Steel



	2 7/16"	5866K74	0000000


	Stainless Steel



			2 7/16"	5866K937	000000

End-Shaft Bearings

End-shaft bearings support the end of the shaft and help the screw rotate.

		Each
Steel



	2 7/16"	5914K53	0000000

Trough Ends

	For Shaft Dia.		Each
Steel



	12"	2 7/16"	5866K15	0000000


	14"	2 7/16"	5866K16	000000


	Stainless Steel



			12"	2 7/16"	5866K913	000000


			14"	2 7/16"	5866K529	000000

Bearing Hangers

Bearing hangers mount inside the trough.

	For Shaft Dia.		Each
Steel



	12"	2 7/16"	5866K77	0000000


	14"	2 7/16"	5866K78	000000


	Stainless Steel



			12"	2 7/16"	5866K897	000000


			14"	2 7/16"	5866K505	000000

Bearings

Hardwood—Hardwood bearings are oil impregnated and are often used in agricultural applications.

Iron—Iron bearings are oil impregnated and offer longer life for abrasive materials.

Bronze—Bronze bearings are oil impregnated.

UHMW Polyethylene—UHMW bearings work well with chemicals and wet environments.

	For Shaft Dia.	Max. Temp., ° F		Each
Hardwood



	12", 14"	2 7/16"	—	5914K61	000000


	UHMW Polyethylene (FDA Compliant 21 CFR 177.1520)



			12", 14"	2 7/16"	—	5914K63	00000


			Iron



					12", 14"	2 7/16"	—	5914K73	000000


					Bronze



							9", 12"	2 7/16"	850	5866K536	000000

Food-and-Beverage Permanently Lubricated Mounted Ball Bearings with Four-Bolt Flange

Image of Product. Front orientation. Contains Annotated. Mounted Bearings. Food-and-Beverage Permanently Lubricated Mounted Ball Bearings with Four-Bolt Flange.

Reduce upkeep on your food line with bearings that never need lubrication. On startup, an oil-infused solid polymer releases the optimal amount of food-safe, NSF-registered lubricant—never too much or too little. The embedded oil never leaks out, and seals keep dust and contaminants from sneaking in. 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 shafts as they turn. The four-bolt flange creates a stronger connection to the mounting surface than two-bolt alternatives.

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

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.	Lg.	Wd.	Flange Thk.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Misalignment Capability	Enclosure Rating	Manufacturer		Each
316 Stainless Steel Housing







				Clamp On

				2 7/16"	6 7/8"	3 51/64"	13/16"	11,780	1,250	Steel	Sealed	2°	IP69K	Sealmaster	4429N32	000000000

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

				2 7/16"	2 3/4"	9 1/2"	2 15/16"	11,750	1,250	Steel	Sealed	2°	IP69K	Sealmaster	5044N33	0000000	5135N32	000000	5135N22	000000




						Clamp On

						2 7/16"	2 3/4"	9 1/2"	2 15/16"	11,750	1,250	Steel	Sealed	2°	IP69K	Sealmaster	5044N48	000000	5135N32	00000	5135N22	00000

Thread-Mount Ball Bearings

Smoother than smooth—the balls roll nearly friction-free inside a sturdy housing to support shafts as they turn. A good solution when you lack flat mounting surfaces, these bearings mount directly onto the ends of threaded pipe. Just twist to tighten and mount them in a variety of positions.

Lubricate regularly to keep your bearing 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.

	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







				Set Screw

				2 7/16"	4"	5 5/8"	2 9/16"	11,700	3,000	Steel	Sealed	2°	Sealmaster	1486N7	0000000	7728T131	0000000

Food-and-Beverage Mounted Ball Bearings with Four-Bolt Flange

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 shafts as they turn. The four-bolt flange creates 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 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.	Lg.	Wd.	Flange Thk.	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

				2 7/16"	6 7/8"	2 11/16"	13/16"	11,750	1,250	Steel	Sealed	2°	IP69K	Sealmaster	6590N124	000000000	5135N32	000000	5135N22	000000

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

				2 7/16"	3 5/32"	11"	2 3/4"	20,250	—	4,460	Steel	Sealed	Clamp On	3°	4496N19	000000000	4496N22	000000000




						For Combined Radial and Thrust Loads

						2 7/16"	3 5/32"	11"	2 3/4"	20,250	350	4,460	Steel	Sealed	Clamp On	3°	4496N21	00000000	4496N23	00000000

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



	2 7/16"	4 5/16"	1 5/16"	20,600	100	7654N17	0000000

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 7/16"	1 3/4"	5/8"	3/16"	8°	430	Machine Key, Set Screws	57095K238	000000




						Bushing Trade Number 3020

						2 7/16"	2"	5/8"	5/16"	8°	800	Set Screws	57095K347	000000

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 7/16"	6086K865	000000




						Bushing Trade Number SK

						1 15/16"	5/8"	1/16"	180	Sintered Steel	Clamping Screws, Machine Key	2 7/16"	6086K862	00000