6211-2Z Bearings | McMaster-Carr

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About Ball and Roller Bearings

Ball 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.

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
6211-2Z	55mm	100mm	21mm	Steel	9,750	5,850	6,300	Lubricated	-20° to 230°	ABEC-1	00000000	000000

Precision Ball Bearings

Shielded

For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings.

Shielded bearings dissipate heat more efficiently than sealed bearings.

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

					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
Shielded
6211-2Z	55	100	21	Steel	10,350	6,500	7,000	Lubricated	-20° to 230°	ABEC-3	0000000	0000000

Electrically Insulated Ball Bearings

Shielded

Good for use in electric motors and power generators, these bearings have ceramic balls that insulate against stray current to prevent damage to the bearing. The ceramic balls generate less heat than steel balls, so they require lubrication less frequently.

Shielded bearings block out dust and other contaminants.

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

					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
Shielded
6211-2Z	55	100	21	Steel	11,400	7,300	9,600	Lubricated	-20° to 245°	ABEC-1	0000000	0000000