1 5/16" Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

Bearing Type

Dynamic Thrust Load Capacity

Shaft Mount Type

Width

Mounted Bearing Type

Three-Bolt Flange Mount

Two-Bolt Flange Mount

Cage Width

0.865"

For Load Direction

Combined Radial and Thrust

Length

Bearing Seal Type

Shaft Type

Dynamic Radial Load Capacity

Bearing Trade Number

Housing Material

Material

For Housing ID

Plain Bearing Type

Maximum Rotation Speed

3,000 rpm

3,500 rpm

7,700 rpm

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

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

24 Products

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



		1 5/16"	2 11/16"	11/16"	M88048/M88010	3,450	17,400	3,250	27,700	3,000	Required	-60 to 200	5709K87	000000

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



	1 5/16"	1 5/8"	2 1/2"	5,250 lb. @ 30 rpm	-50 to 700	9368T223	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.

Mineral Oil Base—Mineral oil consistently lubricates at most temperatures but doesn’t last as long as synthetic oil.

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



	1 5/16"	1 1/2"	1"	2,600 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K576	00000


	1 5/16"	1 1/2"	1 1/4"	3,250 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K577	0000
	1 5/16"	1 1/2"	1 1/2"	3,900 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K666	00000
	1 5/16"	1 1/2"	2"	5,250 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K578	0000
	1 5/16"	1 5/8"	1 1/2"	3,900 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K667	00000
	1 5/16"	1 5/8"	2"	5,250 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K579	00000
	1 5/16"	1 5/8"	2 1/2"	6,550 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K456	00000
	1 5/16"	1 5/8"	4"	10,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K23	000000


	High-Load 863 Iron Copper



			1 5/16"	1 5/8"	2 1/2"	11,100 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T233	00000

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.

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

				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	Specs. Met		Each
For Radial Load—Open with Steel Ring



		1 5/16"	1 5/8"	5/8"	4,750	7,530	7,700	Required	8	-20 to 280	ISO 281, ISO 76	5905K606	000000

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

				1 5/16"	1 7/8"	6 9/16"	1 15/16"	5,750	3,500	Steel	Sealed	2°	McMaster-Carr Approved	6494K73	000000

Easy-Adjust Mounted Ball Bearings with Two-Bolt Flange

Change the position of your bearing without having to remove your shaft. Just loosen the bolt in the elongated mounting hole for quick adjustments. The housing mounts in place with a two-bolt flange, the most common type of flanged bearing. Inside, the balls roll nearly friction-free 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.

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.

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.	Lg.	Wd.	Flange Thk.	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 5/16"	6 3/32"	1 23/32"	9/16"	5,750	3,500	Steel	Sealed	2°	4451N22	000000

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 5/16"	3 7/16"	3 17/32"	1 3/4"	19/32"	5,750	3,500	Steel	Sealed	3°	8260K49	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.

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



	1 5/16"	1 5/8"	2 1/2"	13,100 lb. @ 30 rpm	-350 to 450	6381K271	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-09	1 5/16"	1 5/16"	1.574"	Lock Nut, Lock Washer	4449N29	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 5/16"	3 47/64"	6 9/16"	2 3/8"	5,750	3,500	Steel	Sealed	2°	4453N22	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 SD

				1 13/16"	5/16"	5/32"	108	Sintered Steel	Clamping Screws	1 5/16"	6086K855	000000




						Bushing Trade Number SDS

						1 3/8"	5/16"	5/32"	108	Sintered Steel	Clamping Screws	1 5/16"	6086K851	00000




								Bushing Trade Number SH

								1 5/16"	5/16"	5/32"	108	Sintered Steel	Clamping Screws	1 5/16"	6086K848	00000




										Bushing Trade Number SK

										1 15/16"	5/16"	5/32"	180	Sintered Steel	Clamping Screws	1 5/16"	6086K533	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 1610

				1 5/16"	1"	5/16"	5/32"	8°	175	Set Screws	57095K485	000000




						Bushing Trade Number 2517

						1 5/16"	1 3/4"	5/16"	5/32"	8°	430	Set Screws	57095K233	00000