2.501" 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-Strength 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.

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. Also known as Oilite® bearings.

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



	2"	2 1/2"	1 1/2"	6,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K686	000000
	2"	2 1/2"	2"	8,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K468	00000
	2"	2 1/2"	2 1/2"	10,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K469	00000
	2"	2 1/2"	3"	12,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K47	000000
	2 3/16"	2 1/2"	2"	8,750 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K493	00000


	High-Strength 863 Iron Copper



			2"	2 1/2"	2"	8,900 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T267	00000
			2"	2 1/2"	2 1/2"	11,100 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T268	00000
			2"	2 1/2"	3"	13,350 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T269	00000

Dry-Running Sleeve Bearings

Made of naturally slippery plastic so you’ll never have to add lubricant. They’re ideal for clean environments where you need to prevent oil drips or graphite flakes. Compared to metal bearings, they are lighter and will never rust.

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-Strength Ultra-Chemical-Resistant Polyester Fabric-Reinforced PTFE—Woven polyester resin reinforces these PTFE bearings to support loads and speeds comparable to metal bearings. Similar to other PTFE options, they are unaffected by the harsh fluids that other plastics can't handle, including all strong acids and bases.

								Each
	For Shaft Dia.	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
High-Strength Ultra-Chemical-Resistant Polyester Fabric-Reinforced PTFE



		1 3/4"	2 1/2"	3"	9,500 lb. @ 30 rpm	Blue	-40 to 150	1521N26	0000000	000000	000000