2.5025" ID 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.

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



	2 1/2"	2 7/8"	2 1/4"	11,250 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K838	000000


	2 1/2"	2 7/8"	2 1/2"	12,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K689	00000
	2 1/2"	2 7/8"	3"	15,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K839	00000
	2 1/2"	3"	2"	10,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K842	00000
	2 1/2"	3"	2 1/2"	12,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K691	00000
	2 1/2"	3"	3"	15,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K841	00000
	2 1/2"	3"	4"	20,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K428	000000