1 7/8" Spacers | 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 1/2"	1 7/8"	1 1/2"	4,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K673	000000


	1 1/2"	1 7/8"	1 3/4"	5,250 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K674	00000
	1 1/2"	1 7/8"	2"	6,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K46	00000
	1 1/2"	1 7/8"	2 1/2"	7,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K774	00000
	1 1/2"	1 7/8"	2 3/4"	8,250 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K59	00000
	1 1/2"	1 7/8"	3"	9,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K773	00000
	1 1/2"	1 7/8"	4"	12,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K26	000000
	1 5/8"	1 7/8"	1"	3,250 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K592	0000
	1 5/8"	1 7/8"	1 1/4"	4,050 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K593	0000
	1 5/8"	1 7/8"	1 1/2"	4,850 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K823	00000
	1 5/8"	1 7/8"	1 3/4"	5,650 lb. @ 30 rpm	Mineral Oil	10 to 220	6391K594	00000


	1 5/8"	1 7/8"	2"	6,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K676	00000


	High-Load 863 Iron Copper



			1 1/2"	1 7/8"	2"	8,900 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T247	00000


			1 1/2"	1 7/8"	4"	17,800 lb. @ 30 rpm	Synthetic Oil	-15 to 300	2868T248	000000

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.

Extreme-Temperature Chemical-Resistant Graphalloy—From the freezer to the furnace, these bearings glide in extreme temperatures where other bearings grind and fail. They resist decay caused by the strong acids or bases found in cleaning fluids. They even work underwater without swelling or warping.

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



	1 1/2"	1 7/8"	2"	4,800 lb. @ 30 rpm	-50 to 700	9368T233	000000


	Extreme-Temperature Chemical-Resistant Graphalloy



			1 3/8"	1 7/8"	2"	2,050 lb. @ 30 rpm	-450 to 750	7943K64	000000

Grooved Sleeve Bearings

A figure-8-shaped groove provides a flow path for lubricant and distributes it evenly inside the bearing’s surface. A refill hole on the outside lets you inject your lubricant straight into the groove. 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.

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-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.

High-Load Chemical-Resistant 954 Bearing Bronze—The strongest of our bronze bearings. The addition of iron and aluminum makes them exceptionally strong and resistant to chemicals. They’re often used in the most demanding environments, such as salt mines. Also known as aluminum bronze.

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



	1 1/2"	1 7/8"	2"	10,500 lb. @ 30 rpm	-350 to 450	7965K59	000000


	High-Load Chemical-Resistant 954 Bearing Bronze



			1 3/4"	1 7/8"	1 1/2"	10,200 lb. @ 30 rpm	-350 to 500	2924T66	00000


			1 3/4"	1 7/8"	2"	13,650 lb. @ 30 rpm	-350 to 500	2924T67	00000

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.

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 1/2"	1 7/8"	4"	24,000 lb. @ 30 rpm	-350 to 450	6381K26	000000