1.376" ID Bearings | McMaster-Carr

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.

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



		1 3/8"	1 7/8"	1"	8,400	15,900	10,000	Required	16	0 to 245	Lubrication Groove, Lubrication Hole	7929K46	000000	1 1/8"	7929K7	000000

Oil-Embedded Flanged 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.

Flanged sleeve bearings combine a sleeve and thrust bearing in one. The flange supports thrust loads and prevents the bearing from being pushed out of place. The sleeve is 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	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	1 3/8"	1 5/8"	1"	2"	1/8"	2,750 lb. @ 30 rpm	3,300 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6338K314	00000

Oil-Embedded Sleeve Bearings

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.

Extreme-Load Heat-Treated Iron Copper—Our strongest oil-embedded sleeve bearings. They’re heat treated to form a uniform internal grain that makes them stronger than 863 iron copper. As a result, they’re often used to support extreme loads in earth-moving equipment and railroad applications. 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.

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



	1 3/8"	1 5/8"	1 1/8"	3,050 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K581	00000


	Extreme-Load Heat-Treated Iron Copper



			1 3/8"	1 5/8"	1"	9,500 lb. @ 30 rpm	Mineral Oil	10 to 350	3741K37	00000


			1 3/8"	1 5/8"	1 1/2"	14,300 lb. @ 30 rpm	Mineral Oil	10 to 350	3741K38	00000

Light Duty Oil-Embedded Mounted Sleeve Bearings

With a two-piece housing made from thin pressed metal, 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. Made from porous, oil-saturated bronze, they release their own lubrication on startup, reducing the need for frequent relubrication.

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.

Steel Housing—Best for dry environments as moisture will cause them to rust.

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. @ Speed	Misalignment Capability		Each
841 Bearing Bronze Bearing with Steel Housing



		1 3/8"	1 11/32"	5 7/16"	1 3/4"	4,800 lb. @ 30 rpm	Not Rated	3813T19	000000