50,000 rpm Bearings | McMaster-Carr

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38 Products

About Ball and Roller Bearings

Ball Bearings

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

For technical drawings and 3-D models, click on a part number.

Open

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R3	3/16"	1/2"	5/32"	Steel	290	110	50,000	Required	-20° to 230°	ABEC-1	000000000	00000

Permanently Lubricated Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.

Sealed bearings have even better resistance to dust and contaminants than open bearings.

For technical drawings and 3-D models, click on a part number.

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
R2	1/8"	3/8"	5/32"	Steel	140	50	50,000	Lubricated	10° to 200°	ABEC-1	0000000	000000
Sealed
R2-2RS	1/8"	3/8"	5/32"	Steel	140	50	50,000	Lubricated	10° to 200°	ABEC-1	0000000	00000

Stainless Steel Ball Bearings

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

Bearings with extended inner ring provide additional shaft support.

For technical drawings and 3-D models, click on a part number.

Open

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R188	1/4"	1/2"	1/8"	440C Stainless Steel	240	90	50,000	Lubricated	-40° to 240°	ABEC-5	000000000	00000

Shielded

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R188-2Z	1/4"	1/2"	3/16"	440C Stainless Steel	240	90	50,000	Lubricated	-40° to 240°	ABEC-5	000000000	00000
126-2Z	6mm	12mm	4mm	440C Stainless Steel	160	55	50,000	Lubricated	-40° to 240°	ABEC-5	00000000	0000
695-2Z	5mm	13mm	4mm	440C Stainless Steel	240	90	50,000	Lubricated	-40° to 240°	ABEC-5	00000000	0000

Shielded with Extended Inner Ring

				Inner Ring			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R3-2Z	3/16"	1/2"	0.196"	0.256"	0.227"	440C Stainless Steel	290	100	50,000	Lubricated	-40° to 240°	ABEC-5	000000000	00000
R188-2Z	1/4"	1/2"	3/16"	0.291"	0.219"	440C Stainless Steel	240	90	50,000	Lubricated	-40° to 240°	ABEC-5	000000000	0000

Permanently Lubricated Stainless Steel Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.

Sealed bearings have even better resistance to dust and contaminants than open bearings.

For technical drawings and 3-D models, click on a part number.

Inch Bearings

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
R2	1/8"	3/8"	5/32"	440C Stainless Steel	55	50	50,000	Lubricated	-10° to 200°	ABEC-1	000000	000000
Sealed
R2-2RS	1/8"	3/8"	5/32"	440C Stainless Steel	55	50	50,000	Lubricated	-10° to 200°	ABEC-1	000000	00000

Metric Bearings

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
603	3	9	3	440C Stainless Steel	65	20	50,000	Lubricated	-10° to 200°	ABEC-1	00000000	000000

Precision Stainless Steel Ball Bearings

Open

Shielded

Made to tight tolerances, these 440C stainless steel bearings combine speed and accuracy with corrosion resistance.

Open bearings dissipate heat more efficiently than shielded bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

For technical drawings and 3-D models, click on a part number.

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
R3	3/16"	1/2"	5/32"	440C Stainless Steel	290	100	50,000	Lubricated	-10° to 240°	ABEC-5	000000000	00000
R168	1/4"	3/8"	1/8"	440C Stainless Steel	45	15	50,000	Lubricated	-10° to 240°	ABEC-7	0000000	00000
__	5mm	11mm	3mm	440C Stainless Steel	115	34	50,000	Lubricated	-30° to 280°	ABEC-7	0000000	00000
__	6mm	10mm	2.5mm	440C Stainless Steel	70	24	50,000	Lubricated	-30° to 280°	ABEC-7	0000000	00000
Shielded
R3-2Z	3/16"	1/2"	0.196"	440C Stainless Steel	290	100	50,000	Lubricated	-10° to 240°	ABEC-5	000000000	0000
__	5mm	11mm	5mm	440C Stainless Steel	115	34	50,000	Lubricated	-30° to 280°	ABEC-7	0000000	00000
__	6mm	10mm	3mm	440C Stainless Steel	70	24	50,000	Lubricated	-30° to 280°	ABEC-7	0000000	00000

Food Industry Permanently Lubricated Stainless Steel Ball Bearings

Good for applications with incidental food contact, these 440C stainless steel bearings have a food-grade, solid polymer lubricant between the balls and ring that eliminates the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.

Sealed bearings have even better resistance to dust and contaminants than open bearings.

For technical drawings and 3-D models, click on a part number.

Inch Bearings

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating	Specifications Met		Each
Open
R2	1/8"	3/8"	5/32"	440C Stainless Steel	120	39	50,000	Lubricated	-20° to 210°	ABEC-1	FDA Compliant 21 CFR 178.3570	000000	000000
Sealed
R2-2RS	1/8"	3/8"	5/32"	440C Stainless Steel	120	39	50,000	Lubricated	-20° to 210°	ABEC-1	FDA Compliant 21 CFR 178.3570	000000	00000

Flanged Ball Bearings

The flange ensures proper positioning inside a tube or housing.

440C stainless steel bearings are more corrosion resistant than steel bearings.

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

Bearings with extended inner ring provide additional shaft support.

For technical drawings and 3-D models, click on a part number.

Open

Flanged Bearing

				Flange			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R3	3/16"	1/2"	5/32"	0.565"	0.04"	440C Stainless Steel	290	100	50,000	Lubricated	-20° to 250°	ABEC-5	000000000	00000
R188	1/4"	1/2"	1/8"	0.547"	0.02"	440C Stainless Steel	240	90	50,000	Lubricated	-20° to 250°	ABEC-5	000000000	0000
148	8mm	14mm	3.5mm	15.6mm	0.8mm	440C Stainless Steel	140	65	50,000	Lubricated	-50° to 300°	ABEC-3	000000000	00000
148	8mm	14mm	3.5mm	15.6mm	0.8mm	Steel	180	85	50,000	Lubricated	-50° to 300°	ABEC-3	000000000	0000

Shielded

Flanged Bearing

				Flange			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R3-2Z	3/16"	1/2"	0.196"	0.565"	0.04"	440C Stainless Steel	290	100	50,000	Lubricated	-20° to 250°	ABEC-5	000000000	00000
R188-2Z	1/4"	1/2"	3/16"	0.547"	0.05"	440C Stainless Steel	240	90	50,000	Lubricated	-20° to 250°	ABEC-5	000000000	0000
117-2Z	7mm	11mm	3mm	12.2mm	0.6mm	440C Stainless Steel	100	35	50,000	Lubricated	-20° to 250°	ABEC-5	00000000	00000
126-2Z	6mm	12mm	4mm	13.6mm	0.8mm	440C Stainless Steel	120	50	50,000	Lubricated	-50° to 300°	ABEC-3	000000000	00000
126-2Z	6mm	12mm	4mm	13.6mm	0.8mm	440C Stainless Steel	160	55	50,000	Lubricated	-20° to 250°	ABEC-5	00000000	0000
695-2Z	5mm	13mm	4mm	15mm	1mm	440C Stainless Steel	190	75	50,000	Lubricated	-50° to 300°	ABEC-3	000000000	00000
695-2Z	5mm	13mm	4mm	15mm	1mm	440C Stainless Steel	240	90	50,000	Lubricated	-20° to 250°	ABEC-5	00000000	0000
695-2Z	5mm	13mm	4mm	15mm	1mm	Steel	240	95	50,000	Lubricated	-50° to 300°	ABEC-3	000000000	00000

Shielded with Extended Inner Ring

Shielded with
Extended
Inner Ring

Flanged Bearing
with Extended
Inner Ring

				Flange		Inner Ring			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	OD	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R188-2Z	1/4"	1/2"	3/16"	0.547"	0.05"	0.291"	0.219"	440C Stainless Steel	240	90	50,000	Lubricated	-20° to 250°	ABEC-5	000000000	00000

Precision Flanged Ball Bearings

Open

When speed and accuracy matter most, opt for these bearings. They’re made to tighter tolerances than standard flanged ball bearings. All are 440C stainless steel for good corrosion resistance. The flange ensures proper positioning inside a tube or housing.

Open bearings dissipate heat more efficiently than shielded bearings.

For technical drawings and 3-D models, click on a part number.

				Flange			Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	OD	Thick.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
R168	1/4"	3/8"	1/8"	0.422"	0.02"	440C Stainless Steel	45	15	50,000	Lubricated	-10° to 240°	ABEC-7	0000000	000000

Angular-Contact Thrust Ball Bearings

Open

Install these bearings for use with combined radial and thrust loads. They are often used in spindle applications and can be combined with cylindrical roller bearings to better handle radial loads.

Single-row bearings handle thrust loads on one side. For applications with thrust loads on both sides, mount them in pairs.

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

For technical drawings and 3-D models, click on a part number.

					Combined Load Cap., lbs.
Bearing Trade Number	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Contact Angle	Temp. Range, °F	ABEC Rating		Each
Single Row
Open
7003	17	35	10	Steel	1,500	710	50,000	Required	15°	-30° to 140°	ABEC-7	0000000	0000000

Low-Profile Mounted Ball Bearings

With Aluminum Housing

Designed with a thin, compact housing, these bearings are good for space-constrained applications.

Shielded bearings dissipate heat more efficiently than sealed bearings.

For technical drawings and 3-D models, click on a part number.

		Overall			Mounting		Radial Load Cap., lbs.
For Shaft Dia.	Center Ht.	Ht.	Lg.	Wd.	Hole Dia.	Hole Ctr.-to-Ctr.	Dynamic	Static	Max. Speed, rpm	Temp. Range, °F	Alignment Style	Lubrication		Each
Shielded Steel Bearings with Aluminum Housing
Shaft Mount Type: Press Fit
5mm	3/8"	3/4"	1 7/16"	13/64"	1/8"	1 1/8"	910	340	50,000	-20° to 245°	Fixed Alignment	Lubricated	0000000	000000
6mm	3/8"	3/4"	1 7/16"	13/64"	1/8"	1 1/8"	600	230	50,000	-20° to 245°	Fixed Alignment	Lubricated	0000000	00000