0.377" OD Bearings | McMaster-Carr

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.

										Certificate
	For Shaft Dia.	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Type	Form		Each
841 Bearing Bronze



		1/4"	3/8"	1/4"	1/2"	1/16"	125 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	—	—	6338K411	00000


		1/4"	3/8"	1/4"	1/2"	1/16"	125 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	Material Certificate	Paper	3113K51	0000
		1/4"	3/8"	3/8"	1/2"	1/16"	185 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	—	—	6338K412	0000
		1/4"	3/8"	3/8"	1/2"	1/16"	185 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	Material Certificate	Paper	3113K52	0000
		1/4"	3/8"	1/2"	1/2"	1/16"	250 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	—	—	6338K413	0000
		1/4"	3/8"	1/2"	1/2"	1/16"	250 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	Material Certificate	Paper	3113K53	0000
		1/4"	3/8"	3/4"	1/2"	1/16"	370 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	—	—	6338K451	0000

Ultra-Low-Friction Oil-Embedded Flanged Sleeve Bearings

Our slipperiest metal bearings, these are ideal for machinery with frequent starts and stops, such as conveyors. With nonstick PTFE particles added to the oil, they reduce friction to minimize wear and heat, so equipment runs more efficiently and lasts longer. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F		Each
841 Bearing Bronze



	1/4"	3/8"	3/16"	1/2"	1/16"	90 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K316	00000


	1/4"	3/8"	1/4"	1/2"	1/16"	125 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K1	0000
	1/4"	3/8"	3/8"	1/2"	1/16"	185 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K2	0000
	1/4"	3/8"	7/16"	1/2"	1/16"	215 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K317	0000
	1/4"	3/8"	1/2"	1/2"	1/16"	250 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K3	0000
	1/4"	3/8"	5/8"	1/2"	1/16"	310 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K318	0000
	1/4"	3/8"	3/4"	1/2"	1/16"	370 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	PTFE	-140 to 460	1677K319	0000

Mil. Spec. Oil-Embedded Flanged Sleeve Bearings

These bearings are manufactured and tested to strict U.S. military standards for material and construction. All are made from porous metal and saturated with oil to reduce maintenance and downtime. Although these bearings will work in most conditions, oil may drip away if temperatures get too high.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	1/4"	3/8"	1/4"	1/2"	1/16"	100 lb. @ 120 rpm	235 lb. @ 120 rpm	Synthetic Oil	-65 to 300	ASTM B438, MIL-B-5687, MS17796-21	7634N11	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.

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



	1/4"	3/8"	7/16"	215 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K332	00000


	1/4"	3/8"	9/16"	280 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K333	0000
	1/4"	3/8"	1 1/8"	560 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K334	0000
	1/4"	3/8"	1 1/4"	620 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K335	0000
	5/16"	3/8"	5/16"	195 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K337	0000

Mil. Spec. 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.

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



	1/4"	3/8"	1/2"	200 lb. @ 120 rpm	Synthetic Oil	-65 to 300	ASTM B438, MIL-B-5687, MS17795-26	7639N11	00000


	1/4"	3/8"	3/4"	300 lb. @ 120 rpm	Synthetic Oil	-65 to 300	ASTM B438, MIL-B-5687, MS17795-228	7639N12	0000

Flanged 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.

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.

									Certificate
	For Shaft Dia.	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F	Type	Form		Each
High-Load 932 Bearing Bronze



		5/32"	3/8"	3/8"	7/16"	1/16"	230 lb. @ 120 rpm	520 lb. @ 120 rpm	-350 to 450	—	—	7815K807	000000


		1/4"	3/8"	1/4"	1/2"	1/16"	250 lb. @ 120 rpm	580 lb. @ 120 rpm	-350 to 450	—	—	7815K11	0000
		1/4"	3/8"	1/4"	1/2"	1/16"	250 lb. @ 120 rpm	580 lb. @ 120 rpm	-70 to 450	Material Certificate	Paper	91786A607	00000
		1/4"	3/8"	3/8"	1/2"	1/16"	370 lb. @ 120 rpm	580 lb. @ 120 rpm	-350 to 450	—	—	7815K12	0000
		1/4"	3/8"	3/8"	1/2"	1/16"	370 lb. @ 120 rpm	580 lb. @ 120 rpm	-70 to 450	Material Certificate	Paper	91786A612	00000
		1/4"	3/8"	1/2"	1/2"	1/16"	500 lb. @ 120 rpm	580 lb. @ 120 rpm	-350 to 450	—	—	7815K13	0000
		1/4"	3/8"	1/2"	1/2"	1/16"	500 lb. @ 120 rpm	580 lb. @ 120 rpm	-70 to 450	Material Certificate	Paper	91786A617	00000
		1/4"	3/8"	3/4"	1/2"	1/16"	750 lb. @ 120 rpm	580 lb. @ 120 rpm	-350 to 450	—	—	7815K14	0000

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.

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



	1/4"	3/8"	1/4"	250 lb. @ 120 rpm	-350 to 450	6381K412	00000


	1/4"	3/8"	3/8"	370 lb. @ 120 rpm	-350 to 450	6381K413	0000
	1/4"	3/8"	1/2"	500 lb. @ 120 rpm	-350 to 450	6381K415	0000
	1/4"	3/8"	5/8"	620 lb. @ 120 rpm	-350 to 450	6381K416	0000
	1/4"	3/8"	7/8"	870 lb. @ 120 rpm	-350 to 450	6381K417	0000
	1/4"	3/8"	1"	1,000 lb. @ 120 rpm	-350 to 450	6381K42	0000
	5/16"	3/8"	1/4"	310 lb. @ 120 rpm	-350 to 450	6381K425	0000
	5/16"	3/8"	3/8"	460 lb. @ 120 rpm	-350 to 450	6381K426	0000
	5/16"	3/8"	1/2"	620 lb. @ 120 rpm	-350 to 450	6381K427	0000
	5/16"	3/8"	5/8"	780 lb. @ 120 rpm	-350 to 450	6381K428	0000
	5/16"	3/8"	3/4"	930 lb. @ 120 rpm	-350 to 450	6381K429	0000


	5/16"	3/8"	1"	1,250 lb. @ 120 rpm	-350 to 450	6381K43	0000

High-Temperature Graphite-Lubricated Flanged Sleeve Bearings

Image of Product. Front orientation. Contains Annotated. Flanged Sleeve Bearings. High-Temperature Graphite-Lubricated Flanged 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.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

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



	1/4"	3/8"	1/4"	1/2"	1/16"	100 lb. @ 120 rpm	235 lb. @ 120 rpm	-50 to 700	9440T11	00000


	1/4"	3/8"	3/8"	1/2"	1/16"	150 lb. @ 120 rpm	235 lb. @ 120 rpm	-50 to 700	9440T12	0000
	1/4"	3/8"	1/2"	1/2"	1/16"	200 lb. @ 120 rpm	235 lb. @ 120 rpm	-50 to 700	9440T13	0000
	1/4"	3/8"	3/4"	1/2"	1/16"	300 lb. @ 120 rpm	235 lb. @ 120 rpm	-50 to 700	9440T14	0000

Ultra-Low-Friction 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.

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



	1/4"	3/8"	1/4"	125 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K4	00000


	1/4"	3/8"	3/8"	185 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K5	0000
	1/4"	3/8"	1/2"	250 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K6	0000
	1/4"	3/8"	1"	500 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K7	0000

High-Temperature Graphite-Lubricated 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.

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



	1/4"	3/8"	1/4"	100 lb. @ 120 rpm	-50 to 700	9368T13	00000


	1/4"	3/8"	3/8"	150 lb. @ 120 rpm	-50 to 700	9368T14	0000
	1/4"	3/8"	1/2"	200 lb. @ 120 rpm	-50 to 700	9368T15	0000
	1/4"	3/8"	5/8"	250 lb. @ 120 rpm	-50 to 700	9368T44	0000
	1/4"	3/8"	7/8"	350 lb. @ 120 rpm	-50 to 700	9368T109	0000
	1/4"	3/8"	1"	400 lb. @ 120 rpm	-50 to 700	9368T16	0000
	5/16"	3/8"	1/4"	125 lb. @ 120 rpm	-50 to 700	9368T45	0000
	5/16"	3/8"	3/8"	185 lb. @ 120 rpm	-50 to 700	9368T46	0000
	5/16"	3/8"	1/2"	250 lb. @ 120 rpm	-50 to 700	9368T115	0000
	5/16"	3/8"	5/8"	310 lb. @ 120 rpm	-50 to 700	9368T116	0000
	5/16"	3/8"	3/4"	370 lb. @ 120 rpm	-50 to 700	9368T117	0000


	5/16"	3/8"	1"	500 lb. @ 120 rpm	-50 to 700	9368T118	0000


	High-Load 932 Bearing Bronze



			1/4"	3/8"	1/2"	430 lb. @ 120 rpm	-350 to 450	6405K311	00000


			1/4"	3/8"	3/4"	650 lb. @ 120 rpm	-350 to 450	6405K312	00000

Oil-Embedded Flanged Sleeve Bearings for Food and Beverage

These lead-free bearings are infused with a food-grade oil that is odorless, colorless, tasteless, and safe for incidental contact with food. They’re often used in food and beverage processing, packing, and handling equipment. All are made from porous metal and saturated with oil to reduce maintenance and downtime. If you need a bearing rated for direct contact with food, consider dry-running flanged sleeve bearings for food and beverage. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	1/4"	3/8"	1/4"	1/2"	1/16"	125 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K2	00000


	1/4"	3/8"	3/8"	1/2"	1/16"	185 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K3	0000
	1/4"	3/8"	1/2"	1/2"	1/16"	250 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K4	0000
	1/4"	3/8"	3/4"	1/2"	1/16"	370 lb. @ 120 rpm	290 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K5	0000

Dry-Running Flanged Sleeve Bearings for Food and Beverage

Made of plastics permitted by the US FDA for contact with food, these bearings won’t release harmful, smelly, and distasteful impurities into your food or beverage production line. These self-lubricating plastics eliminate the need for oil, resulting in less maintenance and improved hygiene. You’ll find them inside food-processing equipment such as mixers, conveyors, and fillers.

Ultra-Low-Friction Rulon 641—Get effortless motion with strength surpassing UHMW polyethylene. Rulon 641 bearings can also operate from cryogenic to oven-like temperatures.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F	Specs. Met		Each
Ultra-Low-Friction Rulon 641



	5/16"	3/8"	1/4"	9/16"	1/32"	75 lb. @ 120 rpm	95 lb. @ 120 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550, USP Class VI	6371K108	000000