23mm OD Bearings | McMaster-Carr

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.

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
6703	17	23	4	440C Stainless Steel	220	140	15,000	Lubricated	-10° to 200°	ABEC-1	00000000	000000
Sealed
6703-2RS	17	23	4	440C Stainless Steel	220	140	15,000	Lubricated	-10° to 200°	ABEC-1	00000000	00000

Flanged Ultra-Thin Ball Bearings

Open

Shielded

Flanged Bearing

Flanged and creating twice as many contact points as angular-contact ball bearings, these bearings ensure correct positioning within a tube or housing and resist radial loads.

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.

			Flange		Radial Load Cap., lbs.
For Shaft Diameter, mm	For Housing ID, mm	Width, mm	OD, mm	Thickness, mm	Dynamic	Static	Max. Speed, rpm	Lubrication	Temperature Range, °F	ABEC Rating		Each
Steel Ring
Open
17	23	4	24.5	0.8	220	145	11,000	Lubricated	-50° to 280°	ABEC-1	00000000	000000
Shielded
17	23	4	24.5	0.8	220	145	9,500	Lubricated	-50° to 300°	ABEC-1	00000000	00000

Ultra-Thin Ball Bearings

Open

Shielded

These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.

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

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.		Thrust Load Cap., lbs.		Moment Load Cap., ft.-lbs.
For Shaft Dia.	For Housing ID	Wd.	Dynamic	Static	Dynamic	Static	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Steel Ring
Open
17mm	23mm	4mm	220	145	Not Rated	Not Rated	Not Rated	Not Rated	11,000	Lubricated	-50° to 130°	ABEC-1	0000000	000000
Shielded
17mm	23mm	4mm	220	145	Not Rated	Not Rated	Not Rated	Not Rated	9,500	Lubricated	-40° to 150°	ABEC-1	00000000	00000
440 Stainless Steel Ring
Open
17mm	23mm	4mm	220	145	Not Rated	Not Rated	Not Rated	Not Rated	11,000	Lubricated	-50° to 130°	ABEC-1	0000000	00000
Shielded
17mm	23mm	4mm	220	145	Not Rated	Not Rated	Not Rated	Not Rated	9,500	Lubricated	-40° to 150°	ABEC-1	00000000	00000

Oil-Embedded Flanged Sleeve Bearings

Startup friction causes these bearings to release a thin layer of oil on the bearing’s surface. They’re flanged, so they handle loads both parallel and perpendicular to the shaft. They’re also known as Oilite® bearings.

Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.

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

Metric 841 Bronze Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
For 20mm Shaft Dia.
23mm	11.5mm	30mm	1.5mm	710 lbs. @ 60 rpm	1,200 lbs. @ 60 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	000000

Light Duty Dry-Running Flanged Sleeve Bearings

Use where high loads and speeds are not required.

Thermoplastic-blend bearings have low moisture absorption and create very low friction in applications with light loads, and frequent starts and stops.

Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.

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

Thermoplastic-Blend Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 20mm Shaft Dia.
23mm	11.5mm	30mm	1.5mm	270 lbs. @ 60 rpm	310 lbs. @ 60 rpm	Yellow	-50° to 190°	00000000	00000
23mm	15.5mm	30mm	1.5mm	370 lbs. @ 60 rpm	310 lbs. @ 60 rpm	Yellow	-50° to 190°	00000000	0000
23mm	21.5mm	30mm	1.5mm	520 lbs. @ 60 rpm	310 lbs. @ 60 rpm	Yellow	-50° to 190°	00000000	0000

Food Industry Dry-Running Flanged Sleeve Bearings

Made of FDA listed materials for use in food applications, these bearings also withstand caustic and washdown environments.

Acetal bearings are FDA compliant for direct contact with food. They’re commonly used on machines in food plants and manufacturing plants for packaging and healthcare equipment. These bearings are bright blue, so they’re easy to spot in your line in case of breakage.

Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.

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

Acetal Plastic Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F	Specifications Met		Each
For 20mm Shaft Dia.
23mm	11.5mm	30mm	1.5mm	50 lbs. @ 60 rpm	85 lbs. @ 60 rpm	Blue	-50° to 190°	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	00000
23mm	16.5mm	30mm	1.5mm	70 lbs. @ 60 rpm	85 lbs. @ 60 rpm	Blue	-50° to 190°	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	0000
23mm	21.5mm	30mm	1.5mm	95 lbs. @ 60 rpm	85 lbs. @ 60 rpm	Blue	-50° to 190°	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	0000

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 bearings dissipate heat more efficiently than sealed bearings.

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

				Radial Load Cap., lbs.
For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	For Shaft Surface Smoothness (Ra), microinch	Temp. Range, °F	Specifications Met		Each
Open
17mm	23mm	12mm	Steel	1,750	2,300	14,700	Required	8	-40° to 280°	DIN 618, ISO 3245	00000000	00000

Precision Needle-Roller Bearings

Bearing

Install these bearings directly onto hardened and ground shafts. They have higher load capacity, speed, and accuracy than standard needle-roller bearings.

Open bearings dissipate heat more efficiently than sealed bearings.

Shaft liners allow you to use the bearing on unhardened and unground shafts.

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

Bearings
				Radial Load Cap., lbs.								Optional Shaft Liners
For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	For Shaft Surface Smoothness (Ra), microinch	Temp. Range., °F		Each	For Shaft Dia.		Each
Open
15mm	23mm	16mm	Steel	2,700	2,850	23,500	Required	4	0° to 245°	0000000	000000	12 mm	0000000	00000

Linear Ball Bearings

Bearing with Retaining Ring Grooves

Bearings are for use with round end-supported shafts. To install, slide bearings into a housing (not included). For bearings with retaining ring grooves, secure with two retaining rings (sold individually).

Bearings with end seals keep lubricant in and dust out.

Bearings with stainless steel balls are more corrosion resistant than bearings with steel balls.

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

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

Fixed Alignment–Metric

Bearings
					Load Capacity, lbs.						External Retaining Rings
For Shaft Dia., mm	Overall Lg., mm	For Housing ID, mm	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic	Static	Temperature Range, °F	For Shaft Material		Each		Each
440C Stainless Steel Bearings with Stainless Steel Balls
13	32	23.000 - 23.021	23	Yes	110	175	-4° to 176°	Stainless Steel, Steel	0000000	000000	0000000	00000
Steel Bearings with Steel Balls
13	32	23.000 - 23.021	23	Yes	110	175	-4° to 176°	Stainless Steel, Steel	00000000	00000	0000000	000

Linear and Rotary Ball Bearings

With End Seals

Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts. The fixed-alignment design is for use where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).

Bearings with end seals are designed to keep lubricant in and dirt out.

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

Bearings												External Retaining Rings
For Shaft Dia.	Overall Lg.	For Housing ID	Retaining Ring Groove End-to-End Lg.	Dynamic Load Capacity, lbs.	Dynamic Rotary Load Capacity	Max. Speed, rpm	Max. Temperature, ° F	Max. Stroke Lg.	For Shaft Material		Each	Pkg. Qty.		Pkg.
Fixed Alignment
Steel Bearings with End Seals
12mm	32mm	23.0000mm - 23.0210mm	20.1mm	240	99 lbs. @ 500 rpm	5,000	200°	18mm	Stainless Steel, Steel	0000000	000000	1	0000000	00000

Quick-Grip Screw-Clamp Bushings

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.

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

Steel
For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.		Each
10mm	23mm	26mm	600	0000000	000000
12mm	23mm	26mm	710	0000000	00000

Ball Screw/Splines and Bearings

From one compact system, transmit linear or rotary motion or both at once (sometimes called spiral motion). Because of these different motions, these ball screw/splines and bearings create efficient, fluid movements in complex automated applications, such as pick-and-place robots.

The ball bearings move smoothly and precisely, even at high speeds. They're powered independently, so you can drive one bearing at a time or both together to coordinate movements.

The ball screw/splines are hardened on the surface, so they stand up to repeated motion. They’re also hollow, so you can run electrical wiring, compressed air tubing, coolants, or lubricant through their center.

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

Spline		Thread					Ball Screw Bearing				Ball Spline Bearing
Lg.	No. of	Lg.	Direction	ID, mm	Lg., mm	Root Dia., mm	OD, mm	Overall Lg., mm	Dynamic Load Cap., lbs.	Static Load Cap., lbs.	OD, mm	Overall Lg., mm	Dynamic Load Cap., lbs.	Static Load Cap., lbs.	Max. Dynamic Torque, in.-lbs.	Temp. Range, ° F		Each
Metric—1055 Carbon Steel
10mm Dia. (Tolerance: -0.015mm to 0mm)
300 mm	4	270 mm	Right Hand	4	300	9.27	23	34.5	380	600	21	33	600	1,100	34	5° to 176°	0000000	000000000

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About Ball and Roller Bearings

About Plain Bearings

About Linear Bearings

Permanently Lubricated Stainless Steel Ball Bearings

Flanged Ultra-Thin Ball Bearings

Ultra-Thin Ball Bearings

Oil-Embedded Flanged Sleeve Bearings

Light Duty Dry-Running Flanged Sleeve Bearings

Food Industry Dry-Running Flanged Sleeve Bearings

Needle-Roller Bearings

Precision Needle-Roller Bearings

Linear Ball Bearings

Linear and Rotary Ball Bearings

Quick-Grip Screw-Clamp Bushings

Ball Screw/Splines and Bearings