13mm Bearings | McMaster-Carr

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23.000 mm to 23.021 mm

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15 Products

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.

Open Bearing—Open bearings dissipate heat more efficiently than sealed bearings.

				Radial Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F	Specs. Met		Each
For Radial Load—Open with Steel Ring



		13	19	12	1,500	1,750	18,700	Required	8	-20 to 280	DIN 618, ISO 3245	5905K531	000000

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.

Nylon—The most popular choice, nylon is wear resistant yet economical. Keep in mind, though, that it will swell and weaken when exposed to moisture.

								Each
	For Shaft Dia., mm	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
Nylon



		13	16	16	100 lb. @ 60 rpm	Off-White	-10 to 220	6389K773	000000	000000	000000

Quick-Disconnect (QD) Bushings


Machinable Shaft Mount

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing trade number. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

304 Stainless Steel—304 stainless steel bushings resist corrosion from washdowns and humidity, so they’re common in food-processing plants and other frequently-cleaned areas. You can machine the center of these bushings to fit the exact dimensions of your shaft.

	Material	Includes	For Shaft Dia., mm		Each
Machinable Shaft Mount







	Bushing Trade Number SDS

	50	38	108	304 Stainless Steel	Clamping Screws	13	2344K77	0000000




			Bushing Trade Number SH

			42	36	108	304 Stainless Steel	Clamping Screws	13	2344K76	000000

Linear Ball Bearings

Bearings are for use with round end-supported shafts. To install, slide bearings into a housing (not included).

Fixed Alignment


With Retaining Ring Grooves

Fixed-alignment bearings are for use where shaft misalignment is unlikely.

Stainless Steel Ball—Bearings with stainless steel balls are more corrosion resistant than bearings with steel balls.

With Retaining Ring Grooves—For bearings with retaining ring grooves, secure with two retaining rings (sold individually).

With End Seals—Bearings with end seals keep lubricant in and dust out.

	Bearings														Retaining Rings
								Load Capacity, lb.		Temp., ° F
	For Shaft Dia., mm	Overall Lg., mm	OD, mm	For Housing ID	With Retaining Ring Grooves	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic	Static	Min.	Max.	For Shaft Material		Each	Pkg. Qty.		Pkg.
440C Stainless Steel Bearings with Stainless Steel Balls



		13	32	23	23.000 mm to 23.021 mm	Yes	23	Yes	110	175	-4	176	Stainless Steel, Steel	3766N17	000000	1	9968K55	00000


		Steel Bearings with Steel Balls



				13	32	23	23.000 mm to 23.021 mm	Yes	23	Yes	110	175	-4	176	Stainless Steel, Steel	61205K78	00000	1	9968K55	0000

Oil-Embedded Sleeve Bearings

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.

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



	13	16	16	640 lb. @ 60 rpm	Synthetic Oil	-35 to 300	6658K71	000000


	High-Load 863 Iron Copper



			13	16	16	1,250 lb. @ 60 rpm	Synthetic Oil	-15 to 300	2868T345	00000

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, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	13	16	16	640 lb. @ 60 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K155	000000


	High-Load 863 Iron Copper



			13	16	16	1,250 lb. @ 60 rpm	Synthetic Oil	PTFE	-60 to 300	—	7460N155	00000

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.

Moisture-Resistant Plastic Blend—Similar to UHMW, these bearings will keep their shape after washdowns but won’t hold up to steam cleaning. They're bright blue so they are easy to spot if they fall into your production line.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F	Specs. Met		Each
Moisture-Resistant Plastic Blend



	13	15	10	215 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1550	6657K126	00000


	13	15	20	430 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1550	6657K127	0000

Oil-Embedded 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 unintended 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 contact with food, consider dry-running sleeve bearings for food and beverage. 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, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	13	16	16	640 lb. @ 60 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	7095K155	000000


	High-Load 863 Iron Copper



			13	16	16	1,250 lb. @ 60 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570, ASTM B439	7407N155	00000