1.251" 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.

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 1/4"	1/2"	1,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K281	00000


	1"	1 1/4"	3/4"	1,500 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K282	0000
	1"	1 1/4"	1"	2,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K283	0000
	1"	1 1/4"	1 1/4"	2,500 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K284	0000
	1"	1 1/4"	1 1/2"	3,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K285	0000
	1"	1 1/4"	1 3/4"	3,500 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K727	00000
	1"	1 1/4"	2"	4,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K286	00000
	1"	1 1/4"	2 1/4"	4,500 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K424	00000
	1"	1 1/4"	2 1/2"	5,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K45	00000
	1"	1 1/4"	2 7/8"	5,750 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K287	00000
	1"	1 1/4"	3"	6,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K288	00000


	1"	1 1/4"	4"	8,000 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6391K19	000000
	1 1/16"	1 1/4"	1 1/4"	2,650 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6391K488	00000

Oil-Embedded Flanged Sleeve Bearings

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.

										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"	1 1/4"	3/4"	1 1/2"	1/8"	1,500 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	—	—	6338K436	00000


		1"	1 1/4"	3/4"	1 1/2"	1/8"	1,500 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	Material Certificate	Paper	3113K68	00000
		1"	1 1/4"	1"	1 1/2"	1/8"	2,000 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	—	—	6338K437	0000
		1"	1 1/4"	1"	1 1/2"	1/8"	2,000 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	Material Certificate	Paper	3113K69	00000
		1"	1 1/4"	1 1/4"	1 1/2"	1/8"	2,500 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	—	—	6338K438	00000
		1"	1 1/4"	1 1/2"	1 1/2"	1/8"	3,000 lb. @ 60 rpm	1,950 lb. @ 60 rpm	Synthetic Oil	-35 to 300	—	—	6338K439	0000

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-Load 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.

High-Load Moisture-Resistant Rulon LR—Won’t swell in wet or humid places, similar to acetal, but can support higher loads. These bearings also operate smoothly from cryogenic to oven-like temperatures.

Ultra-Low-Friction Rulon J—These bearings glide effortlessly for applications with frequent starts and stops, such as conveyor systems.

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



		7/8"	1 1/4"	7/8"	1,350 lb. @ 60 rpm	Blue	-40 to 150	1521N14	000000	000000	000000


		1"	1 1/4"	1"	1,550 lb. @ 60 rpm	Blue	-40 to 150	1521N15	00000	00000	00000


		High-Load Moisture-Resistant Rulon LR



				1"	1 1/4"	3/4"	470 lb. @ 60 rpm	Maroon	-400 to 550	6362K185	00000	00000	00000


				1"	1 1/4"	1"	630 lb. @ 60 rpm	Maroon	-400 to 550	6362K186	00000	00000	00000
				1"	1 1/4"	1 1/2"	950 lb. @ 60 rpm	Maroon	-400 to 550	6362K187	00000	00000	00000


				Ultra-Low-Friction Rulon J



						1"	1 1/4"	3/4"	350 lb. @ 60 rpm	Gold	-400 to 550	6377K66	00000	00000	00000


						1"	1 1/4"	1"	470 lb. @ 60 rpm	Gold	-400 to 550	6377K67	00000	00000	00000
						1"	1 1/4"	1 1/2"	710 lb. @ 60 rpm	Gold	-400 to 550	6377K51	00000	00000	00000

Dry-Running Flanged Sleeve Bearings

Ultra-Low-Friction Rulon J—These bearings glide effortlessly for applications with frequent starts and stops, such as conveyor systems.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F		Each
High-Load Ultra-Chemical-Resistant Polyester Fabric-Reinforced PTFE



	1"	1 1/4"	3/4"	1 1/2"	1/8"	1,150 lb. @ 60 rpm	1,000 lb. @ 60 rpm	Blue	-40 to 150	1523N37	000000


	1"	1 1/4"	1"	1 1/2"	1/8"	1,550 lb. @ 60 rpm	1,000 lb. @ 60 rpm	Blue	-40 to 150	1523N13	00000
	1"	1 1/4"	1 1/4"	1 1/2"	1/8"	1,950 lb. @ 60 rpm	1,000 lb. @ 60 rpm	Blue	-40 to 150	1523N38	00000
	1"	1 1/4"	1 1/2"	1 1/2"	1/8"	2,350 lb. @ 60 rpm	1,000 lb. @ 60 rpm	Blue	-40 to 150	1523N39	00000


	High-Load Moisture-Resistant Rulon LR



			1"	1 1/4"	1 1/2"	1 1/2"	1/8"	950 lb. @ 60 rpm	410 lb. @ 60 rpm	Maroon	-400 to 550	6362K224	00000


			Ultra-Low-Friction Rulon J



					1"	1 1/4"	1 1/2"	1 1/2"	1/8"	710 lb. @ 60 rpm	310 lb. @ 60 rpm	Gold	-400 to 550	6377K22	00000

Dry-Running Metal-Reinforced Plastic Flanged Sleeve Bearings

Combine slippery plastic with the strength of metal. The PTFE core is naturally slippery, so you’ll never have to add lubricant. These bearings also keep your workspace clean with no lubricant to drip or flake and attract dust. Compared to all-metal bearings, they are lighter.

PTFE with Aluminum Shell—Made of a lightweight shell with corrosion resistance similar to stainless steel and a slippery PTFE inner sleeve.

	For Housing ID	Lg.	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
PTFE with Aluminum Shell



	1"	1 1/4"	1 1/2"	1 1/2"	1/8"	1,900 lb. @ 60 rpm	830 lb. @ 60 rpm	-400 to 400	59575K76	000000

Dry-Running Metal-Reinforced Plastic 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.

PTFE with Aluminum Shell—A lightweight upgrade from our steel shell. These bearings also offer good corrosion resistance similar to stainless steel but aren’t as strong.

	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
PTFE with Aluminum Shell



	1"	1 1/4"	1 1/2"	1,900 lb. @ 60 rpm	-400 to 400	59575K56	000000

Dry-Running 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.

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.

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.	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F	Specs. Met		Each
Ultra-Low-Friction Rulon 641



	1"	1 1/4"	3/4"	470 lb. @ 60 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550, USP Class VI	6371K43	000000


	1"	1 1/4"	1"	630 lb. @ 60 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550, USP Class VI	6371K356	00000
	1"	1 1/4"	1 1/2"	950 lb. @ 60 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550, USP Class VI	6371K357	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.

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.

	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
High-Load 863 Iron Copper



	1"	1 1/4"	3/4"	1 1/2"	1/8"	1,650 lb. @ 60 rpm	1,450 lb. @ 60 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3083K31	00000


	1"	1 1/4"	1"	1 1/2"	1/8"	2,200 lb. @ 60 rpm	1,450 lb. @ 60 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3083K32	0000

Dry-Running Flanged Sleeve Bearings for Food and Beverage

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



	1"	1 1/4"	1 1/2"	1 1/2"	1/8"	950 lb. @ 60 rpm	410 lb. @ 60 rpm	White	-400 to 550	FDA Compliant 21 CFR 177.1550, USP Class VI	6371K457	000000