25mm OD Bearings | McMaster-Carr

Made of naturally slippery plastic so there's no lubricant to maintain or make a mess. These bearings are ideal for spic-and-span spaces since oil won't drip off, wash out, or collect dust over time. They'll also never rust.

Moisture-Resistant Plastic Blend—Similar to acetal, these bearings won't warp or swell from water or humidity.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F		Each
Moisture-Resistant Plastic Blend



	8	25	1.5	70 lb. @ 120 rpm	Gray	-40 to 260	8920N39	00000

Flanged 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.

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.

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, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load Chemical-Resistant 954 Bearing Bronze



	20	25	16	30	2.5	2,200 lb. @ 60 rpm	2,700 lb. @ 60 rpm	-350 to 500	2934T151	000000


	20	25	20	30	2.5	2,750 lb. @ 60 rpm	2,700 lb. @ 60 rpm	-350 to 500	2934T152	00000
	20	25	25	30	2.5	3,450 lb. @ 60 rpm	2,700 lb. @ 60 rpm	-350 to 500	2934T153	00000
	20	25	30	30	2.5	4,150 lb. @ 60 rpm	2,700 lb. @ 60 rpm	-350 to 500	2934T154	00000

Dry-Running Flanged 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.

Moisture-Resistant Ultra-Low-Friction Plastic Blend—These bearings won't warp or swell from humidity or direct contact with water. They glide effortlessly for applications with frequent starts and stops, such as conveyor systems.

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F		Each
Moisture-Resistant Ultra-Low-Friction Plastic Blend



	22	25	8	32	1.5	190 lb. @ 60 rpm	320 lb. @ 60 rpm	Yellow	-50 to 190	2705T171	00000

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.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load Chemical-Resistant 954 Bearing Bronze



	20	25	20	2,750 lb. @ 60 rpm	-350 to 500	2867T133	000000


	20	25	25	3,450 lb. @ 60 rpm	-350 to 500	2867T134	00000
	20	25	50	6,950 lb. @ 60 rpm	-350 to 500	2867T135	00000
	22	25	40	6,100 lb. @ 60 rpm	-350 to 500	2867T136	00000

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.

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.

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



	20	25	12	1,300 lb. @ 60 rpm	-350 to 450	6405K425	000000


	20	25	20	2,150 lb. @ 60 rpm	-350 to 450	6405K427	00000
	20	25	25	2,700 lb. @ 60 rpm	-350 to 450	6405K431	00000
	20	25	30	3,250 lb. @ 60 rpm	-350 to 450	6405K452	00000
	20	25	40	4,300 lb. @ 60 rpm	-350 to 450	6405K453	00000


	High-Load Chemical-Resistant 954 Bearing Bronze



			20	25	25	3,000 lb. @ 60 rpm	-350 to 500	2927T116	00000

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.

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



	16	25	50	4,300 lb. @ 60 rpm	-350 to 450	7965K818	000000


	20	25	25	2,700 lb. @ 60 rpm	-350 to 450	7965K823	00000
	20	25	30	3,250 lb. @ 60 rpm	-350 to 450	7965K824	00000
	20	25	50	5,400 lb. @ 60 rpm	-350 to 450	7965K827	00000

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.

Extreme-Load Heat-Treated Iron Copper—Our strongest oil-embedded sleeve bearings. They’re heat treated to form a uniform internal grain that makes them stronger than 863 iron copper. As a result, they’re often used to support extreme loads in earth-moving equipment and railroad applications. 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.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
Extreme-Load Heat-Treated Iron Copper



	18	25	30	5,600 lb. @ 60 rpm	Mineral Oil	10 to 220	6995N166	000000


	20	25	20	3,750 lb. @ 60 rpm	Mineral Oil	10 to 220	6995N173	00000
	20	25	25	4,650 lb. @ 60 rpm	Mineral Oil	10 to 220	6995N174	00000
	20	25	30	5,600 lb. @ 60 rpm	Mineral Oil	10 to 220	6995N175	00000

Thrust Bearings

With no moving parts, these bearings are the plainest way to support thrust loads while reducing friction. They don't come with lubricant, so you can choose the oil that's best for your application. Make sure to mount them where they're easy to access, since you'll need to replenish the oil frequently. All are fabricated and inspected in the U.S.

High-Load Chemical-Resistant 954 Bearing Bronze—The addition of iron and aluminum makes these bearings strong and exceptionally chemical resistant. You'll find them in demanding environments, such as salt mines. Also known as aluminum bronze.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load Chemical-Resistant 954 Bearing Bronze



	12	25	3	Not Rated	-350 to 500	2872T45	00000


	16	25	2	Not Rated	-350 to 500	2872T48	0000
	16	25	3	Not Rated	-350 to 500	2872T49	0000

Bearing Locknuts

Carbon Steel

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.

Carbon Steel—All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.

303 Stainless Steel—303 stainless steel locknuts resist corrosion better than carbon steel locknuts but aren’t as strong. They withstand washdowns and chemicals.

Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

	Locknuts										Sockets
	Thread						Carbon Steel		303 Stainless Steel
	Size	Spacing	OD, mm	Wd., mm	Insert Max. Temp., ° F	Specs. Met		Each		Each		Each
Chamfered Face



		M15 × 1 mm	Extra Fine	25	8.5	160	ISO 2982-2	6343K34	000000	6343K96	000000	5510N146	0000000

High-Temperature Graphite-Lubricated Thrust Bearings

Keep parts spinning in temperatures as hot as 750° F. Lubricated with graphite, these bearings stay slippery where oil would burn off or solidify. You can install and forget them since the lubricant lasts forever. All are fabricated, lubricated, and inspected in the U.S.

High-Load 932 Bearing Bronze—Cast from an alloy of leaded tin bronze for uniform rigidity and strength. Also known as 660 leaded bronze.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	12	25	2	1,050 lb. @ 120 rpm	-350 to 450	2855T111	000000


	16	25	3	1,550 lb. @ 60 rpm	-350 to 450	2855T113	00000

Dry-Running 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.

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



		18	25	16	100 lb. @ 60 rpm	Off-White	-10 to 220	6389K829	000000	000000	000000


		20	25	25	155 lb. @ 60 rpm	Off-White	-10 to 220	6389K844	00000	00000	00000
		20	25	35	215 lb. @ 60 rpm	Off-White	-10 to 220	6389K846	00000	00000	00000

Ball Joint Rod End Inserts

Shown

Installed

Conical Inserts

Without changing the ID, these inserts handle some misalignment on rod ends. They attach to your rod end to move your fastener away from the rod-end body.

Conical Inserts—Conical inserts help position rod ends between receiving forks, straps, and clevises.

	Overall Ht., mm		Each
Conical Inserts







	Chrome-Plated Carbon Steel

	12	12	25	11	95034A127	000000

Metric Press-Fit Drill Bushings

Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to precisely guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part. Known for their versatility, drill bushings are also used as spacers, shims, and machinery bushings. These bushings are made of hardened, ground steel that holds its shape and resists wear, so they last for many cycles without needing to be replaced.

All bushings have a chamfer on the outside that centers the bushing as you place it into the hole. Press into place with a manual or hydraulic press. Since the bushing is sized slightly larger than the hole for an extremely tight fit, it’ll stay put permanently. These are ANSI Type PM bushings—also known as headless bushings—which means you don’t need to counterbore the hole to mount them flush.

They also have an internal chamfer that makes it easy to insert bits, pins, and punches without damaging the bushing or misaligning tools.

Don't see the size you need? Additional sizes are available.

DIN 179—DIN 179 bushings meet dimensional and material standards that make sure they're compatible with other parts and tools. Although DIN 179 is no longer an active standard, it's still a common reference point for designers.

						Tolerance, mm								Each
	OD, mm	Lg., mm	Internal Chamfer	For Drill Bit Size, mm	For Drill Bit Size Decimal Equiv.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness	Specs. Met		1-5	6-11	12-Up
20 mm ID



		25	18	One End	20	0.7874"	0.02 to 0.041	0.015 to 0.028	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A320	000000	000000	000000

Bearing Nuts

Carbon Steel

Chamfered Face

Often paired with spring lock washers to strengthen their hold, these bearing nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.

Carbon Steel—Carbon steel bearing nuts are strong and resist wear.

Chamfered Face—Chamfered-face bearing nuts weigh less and produce less heat than stepped-face nuts.

ISO 2982— Some chamfered-face bearing nuts meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.

Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

	Nuts								Bearing Lock Washers		Sockets
	Thread
	Size	Spacing	OD, mm	Wd., mm	Specs. Met	For Lock Washer Specs. Met		Each		Each		Each
Carbon Steel







				Chamfered Face

				M15 × 1 mm	Extra Fine	25	5	DIN 981, ISO 2982	DIN 5406	3554N13	00000	90391A113	00000	5510N177	0000000

Shims

With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.

You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.

	Thk., mm	Thk. Tolerance, mm	ID Tolerance, mm	OD Tolerance, mm	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				18 mm ID × 25 mm OD

				0.1	-0.013 to 0.013	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	25	98089A230	00000


				0.2	-0.023 to 0.023	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	25	98089A270	0000
				0.3	-0.055 to 0.055	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	25	98089A311	0000
				0.5	-0.064 to 0.064	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	25	98089A354	00000
				1	-0.105 to 0.105	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	25	98089A398	0000
				1.5	-0.14 to 0.14	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	10	98089A137	00000
				2	-0.21 to 0.21	-0.3 to 0.3	-0.05 to 0.05	Rockwell B70	—	10	98089A460	00000


				Highly Corrosion-Resistant 316 Stainless Steel







								18 mm ID × 25 mm OD

								0.1	-0.013 to 0.013	-0.3 to 0.3	-0.5 to 0.5	Rockwell B70	ASTM A240	5	90214A159	00000


								0.2	-0.023 to 0.023	-0.3 to 0.3	-0.5 to 0.5	Rockwell B70	ASTM A240	5	90214A161	00000
								0.5	-0.064 to 0.064	-0.3 to 0.3	-0.5 to 0.5	Rockwell B70	ASTM A240	5	90214A162	00000
								1	-0.105 to 0.105	-0.3 to 0.3	-0.5 to 0.5	Rockwell B70	ASTM A240	5	90214A163	00000


								Carbon Steel







												18 mm ID × 25 mm OD

												0.1	-0.013 to 0.013	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	5	3088A009	0000


												0.5	-0.064 to 0.064	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	100	3088A069	0000
												1	-0.105 to 0.105	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	50	3088A089	0000
												1.5	-0.14 to 0.14	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	50	3088A697	0000
												2	-0.21 to 0.21	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	50	3088A301	0000


												Stress-Resistant Spring Steel







	18 mm ID × 25 mm OD

	0.1														-0.03 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	25	98055A228	0000


	0.2	-0.04 to 0													0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	25	98055A229	0000
	0.3	-0.05 to 0	0.03 to 0.4												-0.47 to -0.04	Rockwell B85	DIN 988	25	98055A230	0000
	0.5	-0.05 to 0	0.03 to 0.4												-0.47 to -0.04	Rockwell B85	DIN 988	25	98055A231	0000
	1	-0.05 to 0	0.03 to 0.4												-0.47 to -0.04	Rockwell B85	DIN 988	25	98055A232	0000