6903 Ball Bearings | McMaster-Carr

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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
6903	17mm	30mm	7mm	Steel	1,000	570	23,000	Lubricated	-20° to 230°	ABEC-1	00000000	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.

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
6903	17mm	30mm	7mm	Steel	1,000	570	12,500	Lubricated	10° to 200°	ABEC-1	00000000	000000

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.

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
6903	17	30	7	440C Stainless Steel	1,000	570	12,000	Lubricated	-10° to 200°	ABEC-1	00000000	000000