47mm Housing ID Bearings

Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

Corrosion-Resistant 440C Stainless Steel—Combine the strength of steel with the corrosion resistance of stainless steel. These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they'll weaken when exposed to salt water and harsh chemicals, such as bleach.

Highly-Corrosion-Resistant 316 Stainless Steel—The most corrosion-resistant metal bearings we offer. They won't pit or weaken from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				17	47	14	1	3,000	22,300	-20	230	Standard	6303	00000000	000000


				20	47	14	1	3,050	22,000	-20	230	Standard	6204	00000000	00000
				25	47	8	1	1,700	22,500	-20	230	Standard	16005	00000000	00000
				30	47	9	1	1,600	14,000	-20	230	Standard	6906	00000000	00000




						Corrosion-Resistant 440C Stainless Steel

						20	47	14	1	1,950	15,000	-40	240	Standard	6204	00000000	00000


						25	47	12	1	1,900	18,000	-40	240	Standard	6005	00000000	00000
						35	47	7	1	1,050	16,000	-50	130	Standard	6807	00000000	00000




								Highly-Corrosion-Resistant 316 Stainless Steel

								17	47	14	Not Rated	230	840	-40	140	Standard	6303	00000000	00000


								25	47	12	Not Rated	270	700	-40	140	Standard	6005	0000000	00000


								Shielded







												Steel

												17	47	14	1	3,000	16,000	-20	230	Standard	6303-2Z	00000000	00000


												17	47	14	3	3,200	17,000	-20	230	Standard	6303-2Z	0000000	00000
												20	47	14	1	2,850	15,000	-20	230	Standard	6204-2Z	00000000	00000
												20	47	14	3	3,000	17,000	-20	230	Standard	6204-2Z	0000000	00000
												25	47	8	1	1,700	22,500	-20	230	Standard	16005-2Z	00000000	00000
												25	47	12	3	2,650	16,000	-20	230	Standard	6005-2Z	0000000	00000
												30	47	9	1	1,600	14,000	-20	230	Standard	6906-2Z	00000000	00000
												35	47	7	1	1,050	13,000	-40	150	Standard	6807-2Z	00000000	00000




														Corrosion-Resistant 440C Stainless Steel

17														47	14	1	2,600	16,000	-40	240	Standard	6303-2Z	00000000	00000


20	47													14	1	1,950	15,000	-40	240	Standard	6204-2Z	0000000	00000
25	47													12	1	1,900	15,000	-40	240	Standard	6005-2Z	00000000	00000
35	47	7												1	1,050	13,000	-40	150	Standard	6807-2Z	00000000	00000


Sealed







														Steel

				17										47	14	1	3,230	15,700	-4	230	Standard	6303-2RS	0000000	00000


				17	47									14	3	3,200	11,000	-30	210	Standard	6303-2RS	00000000	00000
				20	47									14	1	3,300	14,500	-4	230	Standard	6204-2RS	00000000	00000
				20	47									14	3	3,000	10,000	-30	210	Standard	6204-2RS	00000000	00000
				25	47									12	3	2,650	9,500	-20	210	Standard	6005-2RS	0000000	00000
				30	47									9	1	1,600	14,000	-20	230	Standard	6906-2RS	00000000	00000




						Corrosion-Resistant 440C Stainless Steel

						20	47							14	1	2,450	15,000	-40	240	Standard	6204-2RS	0000000	00000

Permanently Lubricated Ball Bearings

Install and forget these self-lubricating bearings. Their lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				17	47	14	1	2,300	9,300	10	200	Standard	6303	00000000	000000


				20	47	14	1	2,450	8,900	10	200	Standard	6204	00000000	00000
				25	47	12	1	1,900	8,300	10	200	Standard	6005	00000000	00000
				30	47	9	1	1,600	7,500	10	200	Standard	6906	00000000	00000




						Corrosion-Resistant 440C Stainless Steel

						20	47	14	1	2,200	9,000	-10	200	Standard	6204	00000000	00000


						25	47	12	1	1,700	8,000	-10	200	Standard	6005	00000000	00000


						Sealed







										Steel

										17	47	14	1	2,300	9,300	10	200	Standard	6303-2RS	00000000	00000


										20	47	14	1	2,450	8,900	10	200	Standard	6204-2RS	00000000	00000
										25	47	12	1	1,900	8,300	10	200	Standard	6005-2RS	00000000	00000
										30	47	9	1	1,620	7,700	10	200	Standard	6906-2RS	00000000	00000




												Corrosion-Resistant 440C Stainless Steel

												20	47	14	1	2,200	9,000	-10	200	Standard	6204-2RS	00000000	00000


												25	47	12	1	1,700	8,000	-10	200	Standard	6005-2RS	00000000	00000
												30	47	9	1	1,600	8,000	-10	200	Standard	6906-2RS	0000000	00000
												35	47	7	1	1,060	7,000	-10	200	Standard	6807-2RS	00000000	00000

Angular Contact Ball Bearings


Single Row Open	Single Row Sealed	Double Row Open	Double Row Shielded	Double Row Sealed

Support radial and thrust loads at the same time. These bearings are often found inside equipment such as gearboxes and pumps. For example, a bearing inside a gearbox withstands a radial load when the gear is engaged and a momentary thrust load when you shift to a new one. While they don't handle as much force from radial loads as standard bearings, you can pair them with a cylindrical roller bearing to increase their load capacity.

Single Row—Single-row bearings withstand thrust loads from one direction.

Double Row—Double-row bearings handle thrust loads from both directions.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

										Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Material	Dynamic Combined Load Cap., lbf	Max. Rotation Speed, rpm	Lubrication	Contact Angle	Min.	Max.	Bearing Trade No.		Each
Single Row







				Open

				17	47	14	3	Steel	3,550	19,000	Required	40°	-40	300	7303	0000000	000000


				20	47	14	3	Steel	2,950	18,000	Required	40°	-40	300	7204	0000000	00000
				25	47	12	5	Steel	2,750	32,500	Required	15°	-40	250	7005	00000000	000000




						Sealed

						17	47	14	1	Steel	3,950	13,000	Lubricated	40°	-20	230	7303-2RS	0000000	000000


						20	47	14	1	Steel	3,100	9,000	Lubricated	40°	-20	230	7204-2RS	0000000	000000


						Double Row







										Open

										17	47	22.2	1	Steel	4,850	14,000	Required	30°	-40	250	3303	00000000	00000


										20	47	20.6	3	Steel	4,450	14,000	Required	30°	-40	250	3204	00000000	00000




												Shielded

												17	47	22.2	1	Steel	4,850	14,000	Lubricated	30°	-40	250	3303-2Z	00000000	000000


												20	47	20.6	3	Steel	4,450	14,000	Lubricated	30°	-40	300	3204-2Z	00000000	000000




														Sealed

														17	47	22.2	1	Steel	4,850	11,000	Lubricated	30°	-40	210	3303-2RS	00000000	000000


														20	47	20.6	3	Steel	4,450	10,000	Lubricated	30°	-40	210	3204-2RS	00000000	000000

Self-Aligning Ball Bearings

Open

Sealed

Misalignments correct themselves on the fly in these bearings. Two rows of balls have separate raceways in the inner ring and a shared raceway in the outer ring, so the balls rock back and forth to compensate for misalignment. This construction also reduces noise and vibration.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

								Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Misalignment Capability	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				20	47	14	1	2,850	20,000	2.5°	-30	210	Standard	1204	0000000	000000


				20	47	18	1	3,750	20,000	2.5°	-30	210	Standard	2204	0000000	000000


				Sealed







								Steel

								17	47	19	1	2,850	11,000	1.5°	-30	210	Standard	2303-2RS	0000000	000000


								20	47	18	1	2,850	10,000	1.5°	-30	210	Standard	2204-2RS	0000000	000000

Quick-Mount Ball Bearings

Set-Screw

Shaft Mount

Clamp-On Shaft

Mount

Slip onto a shaft and secure with the turn of a screw. You don't need any special tools to mount these bearings.

Set-Screw Shaft Mount—Tighten the screws against the shaft to hold the bearing in place. For high-speed applications, consider clamp-on shaft mounts, which are less likely to slip.

Clamp-On Shaft Mount—The clamp tightens around the shaft for a strong 360° grip. These mounts attach more securely than set screws to reduce vibration. Plus, there aren't any screws pressing into the shaft, so it stays free from damage. Also known as a concentric lock.

Black-Oxide Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

				Retaining Ring, mm						Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	OD	Thk.	Bearing Seal Type	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Bearing Trade No.		Each
Set-Screw Shaft Mount







				Black-Oxide Steel

				20	47	15.9	52.4	1.2	Sealed	1	2,600	7,300	-20	220	ER204	0000000	000000


				Clamp-On Shaft Mount







								Black-Oxide Steel

								20	47	16	52	1.2	Shielded	1	2,600	6,450	-20	220	ER204	0000000	00000

Tapered-Roller Bearings

Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.

					Radial Load Cap., lb.		Thrust Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade No.	Dynamic	Static	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		20	47	12	30204	1,750	7,400	1,050	7,450	4,600	Required	-60 to 200	0000000	000000


		20	47	12	30204	6,300	6,850	3,750	Not Rated	8,000	Required	-50 to 300	0000000	00000

Ball Bearings for Food and Beverage

Sealed

Food production rolls along smoothly on these bearings. Greased with FDA-compliant lubricant, they’re safe to install on food-processing equipment, such as conveyor belts, so long as they don’t directly touch the food. The lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Food Industry Std.	Bearing Trade No.		Each
Sealed







				Corrosion-Resistant 440C Stainless Steel

				17	47	14	1	2,600	9,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6303-2RS	00000000	000000


				20	47	14	1	2,450	9,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6204-2RS	00000000	00000
				25	47	12	1	1,900	8,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6005-2RS	00000000	00000
				35	47	7	1	900	7,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6807-2RS	00000000	000000

Tapered-Bore Ball Bearings

Mount these bearings on tapered shafts. Or, pair with an adapter sleeve to install them on round shafts without needing to press fit. The two rows of balls have separate raceways in the inner ring and a shared raceway in the outer ring, so the balls rock back and forth to compensate for misalignment. This construction also reduces noise and vibration.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

									Temp. Range
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Misalignment Capability	Rate of Taper	Min.	Max., ° F	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				20	47	14	1	2,200	14,000	4°	1:12	Not Rated	240	Standard	1204K	0000000	000000

High-Load Dry-Running Ball Bearings

Double the balls for double the load capacity—these bearings carry twice as much weight as standard dry-running ball bearings. Made of naturally slippery plastic, there's no lubricant to maintain. No lubricant means no oil that could drip off, wash out, or collect dust, so they're ideal for spic-and-span spaces. They stand up to thorough cleanings since they won't rust or warp from moisture.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, reducing wear and extending the life of the bearing.

Acetal—The most common choice for plastic bearings, acetal is economical yet still stands up to daily wear and tear.

316 Stainless Steel Balls—Won't corrode from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

						Temp. Range, ° F				316 Stainless Steel Balls
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	ABEC Rating	Bearing Trade No.		Each
Open







				Acetal

				20	47	21	100	600	-40	180	Not Rated	A5204-6	00000000	000000

Ball Bearings with Retaining Ring

Shielded

Sealed

No need for complicated tools—install these bearings by hand inside a housing. The ring stops the bearing from being jostled out of place when it experiences sudden forces parallel to the shaft (thrust loads).

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

				Retaining Ring, mm					Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	OD	Thk.	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Steel

				20	47	14	52.7	1.12	1	3,000	17,000	-20	230	Standard	6204-2Z	0000000	000000


				Sealed







								Steel

								17	47	14	52.7	1.12	1	3,200	11,000	-40	210	Standard	6303-2RS	0000000	00000


								20	47	14	52.7	1.12	1	3,000	10,000	-40	210	Standard	6204-2RS	0000000	00000

Electrically Insulating Ball Bearings

Shielded

Sealed

Protect bearings from stray currents. The ceramic balls insulate bearings from electrical charges in electric motors and power generators that can damage the inner ring over time. The balls also generate less heat than metal ones, so you don’t have to lubricate them as often to keep bearings running smoothly.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

							Temp. Range, ° F			Ceramic Balls
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Bearing Trade No.		Each
Shielded







				Steel

				20	47	14	1	2,850	22,500	-20	250	6204-2Z	0000000	0000000


				Sealed







								Steel

								20	47	14	1	3,000	17,000	-40	210	6204-2RS	0000000	000000

One-Way-Locking Ball Bearings

Shielded

Sealed

Prevent shafts from reversing direction. These bearings have internal components (sprags) that lock against the outer ring to transmit torque one way but spin freely in the other. They're often found in backstopping, indexing, and overrunning applications. For example, they're used to prevent conveyors from reversing.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

								Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Max. Torque, ft·lbf	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Steel

				20	47	14	1	1,540	6,800	64	-40	170	Standard	FZ 6204	0000000	0000000


				Sealed







								Steel

								20	47	19	1	1,540	6,000	64	-40	170	Standard	FZ 6204 2RS	0000000	000000

High-Precision Angular Contact Ball Bearings

Open

Our most precise bearings for tackling radial and thrust loads at once, with tolerances tighter than a speck of dust. Rated ABEC 7 out of 9, they meet strict tolerance standards established by the Annular Bearing Engineers Committee (ABEC). Choose them for equipment that requires both high speed and pinpoint accuracy, such as machine tool spindles. For example, a bearing on a spindle withstands a radial load as it spins at high speeds and a thrust load when the cutting tool touches the workpiece. These bearings don’t handle as much force from radial loads as standard ones, but you can pair them with a cylindrical roller bearing to increase their load capacity.

Single Row—Single-row bearings withstand thrust loads from one direction.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

										Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Material	Dynamic Combined Load Cap., lbf	Max. Rotation Speed, rpm	Lubrication	Contact Angle	Min.	Max.	Bearing Trade No.		Each
Single Row







				Open

				20	47	14	7	Steel	3,400	34,400	Required	15°	-40	245	7204	0000000	0000000


				25	47	12	7	Steel	2,150	36,000	Required	15°	-30	140	7005	0000000	000000

Flanged Ball Bearings

Shielded

Install these bearings inside a housing and they won't budge. The flange presses against the housing wall, so vibration and other sudden forces parallel to the shaft (thrust loads) won't knock them off-kilter.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

				Flange, mm					Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	OD	Thk.	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Steel

				30	47	9	50	2	1	1,600	14,000	-50	300	Standard	6906-2Z	00000000	000000

Combination Ball/Needle-Roller Bearings

A built-in thrust ball bearing reduces wear from adjacent shaft components, while the needle rollers support high radial loads. Install anywhere you would use separate bearings for radial and thrust loads.

						Radial Load Cap., lb.		Thrust Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ball Bearing OD, mm	Ball Bearing Wd., mm	Dynamic	Static	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F	Features		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		35	47	30	53	12	4,950	9,150	4,500	8,450	5,300	Required	8	-20 to 230	Lubrication Groove, Lubrication Hole	00000000	0000000

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.

Sealed Bearing—Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.

				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



		40	47	12	3,150	5,500	6,600	Required	8	-40 to 280	DIN 618, ISO 3245	00000000	000000


		40	47	16	4,450	8,650	6,600	Required	8	-20 to 280	DIN 618, ISO 3245	00000000	00000
		40	47	20	5,700	11,650	6,600	Required	8	-20 to 280	DIN 618, ISO 3245	00000000	00000


		For Radial Load—Sealed on Both Sides with Steel Ring



				40	47	16	3,100	5,450	3,950	Lubricated	8	0 to 210	DIN 618	00000000	00000

High-Temperature Graphite-Lubricated Ball Bearings

Keep parts spinning in industrial ovens and other places as hot as 660° F. Greased with graphite lubricant, these bearings stay slippery where oil would burn off or solidify. You can install and forget them since the lubricant lasts forever.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Steel

				20	47	14	1	3,000	250	-70	660	Standard	6204-2Z	0000000	0000000

Dry-Running Ball Bearings

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 won't rust or warp from moisture, so they stand up to thorough cleanings.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, reducing wear and extending the life of the bearing.

Acetal—The most common choice for plastic bearings, acetal is economical yet still stands up to daily wear and tear.

316 Stainless Steel Balls—Won't corrode from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

Glass Balls—Nonmagnetic, so they won't interfere with sensors and other sensitive electronics.

						Temp. Range, ° F				316 Stainless Steel Balls		Glass Balls
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	ABEC Rating	Bearing Trade No.		Each		Each
Open







				Acetal

				20	47	14	75	800	-40	180	Not Rated	6204	0000000	000000	———	0


				25	47	12	75	800	-40	180	Not Rated	6005	———	0	00000000	000000

High-Speed Linear Sleeve Bearings

A ceramic liner makes high speeds as well as rapid acceleration and deceleration possible. Bearings are for use with round end-supported shafts. They have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).

Fixed Alignment

Image of Product. Front orientation. Contains Annotated. Linear Bearings. High-Speed Linear Sleeve Bearings .

	Linear Bearings															Retaining Rings
											Temp., ° F
	For Shaft Dia., mm	Shaft Clearance, 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 Linear Load Cap. @ Speed	Static Load Cap., lb.	Min.	Max.	For Shaft Material		Each	Pkg. Qty.		Pkg.
Ceramic-Lined 6061 Aluminum Bearings



		30	0.013 to 0.05	68	47	47 mm	Yes	48	No	900 lb. @ 100 fpm	15,800	-200	400	Stainless Steel, Steel	0000000	000000	1	0000000	00000