0.252" 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.

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



	1/8"	1/4"	1/8"	31 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K113	00000


	1/8"	1/4"	1/4"	60 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K111	0000
	1/8"	1/4"	3/8"	90 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K112	0000
	1/8"	1/4"	1/2"	125 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K613	0000
	5/32"	1/4"	1/4"	75 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K927	0000
	5/32"	1/4"	5/16"	95 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K928	0000
	3/16"	1/4"	5/16"	115 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K327	0000
	3/16"	1/4"	7/16"	160 lb. @ 120 rpm	Mineral Oil	10 to 220	6391K328	0000


	High-Load 863 Iron Copper



			1/8"	1/4"	1/8"	60 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T31	0000


			1/8"	1/4"	1/4"	125 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T32	0000
			1/8"	1/4"	3/8"	185 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T33	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.

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.

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.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	1/16"	1/4"	1/4"	5/16"	1/16"	60 lb. @ 120 rpm	290 lb. @ 120 rpm	-350 to 450	7815K801	000000


	1/8"	1/4"	1/4"	5/16"	1/16"	125 lb. @ 120 rpm	250 lb. @ 120 rpm	-350 to 450	7815K802	00000
	1/8"	1/4"	3/8"	5/16"	1/16"	185 lb. @ 120 rpm	250 lb. @ 120 rpm	-350 to 450	7815K803	00000
	5/32"	1/4"	3/8"	3/8"	1/16"	230 lb. @ 120 rpm	360 lb. @ 120 rpm	-350 to 450	7815K804	00000

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



	1/8"	1/4"	1/8"	60 lb. @ 120 rpm	-350 to 450	6381K405	00000


	1/8"	1/4"	1/4"	125 lb. @ 120 rpm	-350 to 450	6381K406	0000
	1/8"	1/4"	3/8"	185 lb. @ 120 rpm	-350 to 450	6381K407	0000
	3/16"	1/4"	1/4"	185 lb. @ 120 rpm	-350 to 450	6381K501	0000
	3/16"	1/4"	3/8"	280 lb. @ 120 rpm	-350 to 450	6381K502	0000
	3/16"	1/4"	1/2"	370 lb. @ 120 rpm	-350 to 450	6381K503	0000
	3/16"	1/4"	5/8"	460 lb. @ 120 rpm	-350 to 450	6381K601	0000

Ultra-Low-Friction Oil-Embedded 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.

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



	1/8"	1/4"	1/8"	31 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K319	00000


	1/8"	1/4"	1/4"	60 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K321	0000
	1/8"	1/4"	3/8"	90 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K322	0000
	3/16"	1/4"	1/4"	90 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K1	0000
	3/16"	1/4"	3/8"	140 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K311	0000
	3/16"	1/4"	1/2"	185 lb. @ 120 rpm	Synthetic Oil	PTFE	-40 to 460	1688K312	0000

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



	1/8"	1/4"	1/8"	25 lb. @ 120 rpm	-50 to 700	9368T95	00000


	1/8"	1/4"	1/4"	50 lb. @ 120 rpm	-50 to 700	9368T96	0000
	1/8"	1/4"	3/8"	75 lb. @ 120 rpm	-50 to 700	9368T97	0000
	3/16"	1/4"	1/4"	75 lb. @ 120 rpm	-50 to 700	9368T98	0000
	3/16"	1/4"	3/8"	110 lb. @ 120 rpm	-50 to 700	9368T99	0000
	3/16"	1/4"	1/2"	150 lb. @ 120 rpm	-50 to 700	9368T101	0000
	3/16"	1/4"	5/8"	185 lb. @ 120 rpm	-50 to 700	9368T102	0000

Oil-Embedded Flanged Sleeve Bearings

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
High-Load 863 Iron Copper



	1/8"	1/4"	1/4"	5/16"	1/16"	125 lb. @ 120 rpm	225 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T721	00000


	1/8"	1/4"	3/8"	5/16"	1/16"	185 lb. @ 120 rpm	225 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T722	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	Food Industry Std.	USP Class		Each
Ultra-Low-Friction Rulon 641



	3/16"	1/4"	1/4"	3/8"	1/32"	46 lb. @ 120 rpm	70 lb. @ 120 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550	VI	6371K103	000000


	3/16"	1/4"	1/2"	3/8"	1/32"	90 lb. @ 120 rpm	70 lb. @ 120 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550	VI	6371K104	00000