90 mm ID Bearings | McMaster-Carr

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About Ball and Roller Bearings

Shielded

Sealed

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.

Sealed bearings block out dust and other contaminants better than shielded 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
6018-2Z	90	140	24	Steel	13,600	11,200	5,000	Lubricated	-20° to 230°	ABEC-3	0000000	0000000
6218-2Z	90	160	30	Steel	22,700	16,500	4,300	Lubricated	-20° to 230°	ABEC-3	0000000	000000
6318-2Z	90	190	43	Steel	33,900	24,250	3,800	Lubricated	-20° to 230°	ABEC-3	0000000	000000
Sealed
6018-2RS	90	140	24	Steel	13,600	11,200	3,000	Lubricated	-30° to 210°	ABEC-3	0000000	000000
6218-2RS	90	160	30	Steel	22,700	16,500	2,600	Lubricated	-30° to 210°	ABEC-3	0000000	000000
6318-2RS	90	190	43	Steel	33,900	24,250	2,400	Lubricated	-30° to 210°	ABEC-3	0000000	000000

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.

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
90mm	115mm	13mm	4,250	4,400	Not Rated	Not Rated	Not Rated	Not Rated	6,300	Lubricated	-50° to 130°	ABEC-1	00000000	0000000
Shielded
90mm	115mm	13mm	4,250	4,400	Not Rated	Not Rated	Not Rated	Not Rated	5,300	Lubricated	-40° to 150°	ABEC-1	00000000	000000

Thin-Profile Crossed-Roller Bearings

For a more compact machine, these bearings have thinner inner and outer rings than high-load crossed-roller bearings. Route hydraulic lines, electrical wiring, and other components through the inside of the bearing. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

Open bearings dissipate heat more efficiently than sealed bearings.

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

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

				Combined Load Cap., lbs.
For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	Features		Each
Open
90	101	5	Steel	710	1,350	800	Required	0° to 175°	Lubrication Hole	0000000	0000000
Sealed
90	106	8	Steel	1,500	2,750	375	Lubricated	0° to 175°	Lubrication Groove, Lubrication Hole	0000000	000000

High-Load Face-Mount Crossed-Roller Bearings

Open bearings dissipate heat more efficiently than sealed bearings.

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

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

				Combined Load Cap., lbs.
For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	Features		Each
Open
90	210	25	Steel	16,500	24,200	500	Required	0° to 230°	Lubrication Groove, Two Lubrication Holes	0000000	0000000
Sealed
90	210	25	Steel	16,500	24,200	400	Lubricated	0° to 210°	Lubrication Groove, Two Lubrication Holes	0000000	00000000

High-Load Crossed-Roller Bearings

The thicker inner and outer raceways on these bearings can handle heavier loads than the thin-profile crossed-roller bearings. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

Open bearings dissipate heat more efficiently than sealed bearings.

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

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

				Combined Load Cap., lbs.
For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	Features		Each
Open
90	130	16	Steel	7,400	10,500	680	Required	0° to 245°	__	0000000	0000000
Sealed
90	130	16	Steel	7,400	10,500	540	Lubricated	0° to 245°	Lubrication Groove, Two Lubrication Holes	0000000	000000

Spherical-Roller Bearings

Two rows of rollers give these bearings dynamic radial load capacities over five times higher than comparably sized tapered-roller bearings. Also known as rock crusher bearings, they handle heavy shock loads and are used for metal milling machinery, mining and oil field equipment, and in paper mills.

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

					Combined Load Cap., lbs.
For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade Number	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Max. Temp. Range, °F		Each
Open
90	160	40	22218	Steel	80,750	88,750	3,200	Required	390	0000000	0000000

Needle-Roller Thrust Bearings

Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.

Washers allow you to use the bearing on unhardened and unground surfaces.

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

Bearings

Bearing

			Thrust Load Cap., lbs.
For Shaft Dia.	OD	Thick.	Dynamic	Static	Max. Speed, rpm	Lubrication	For Shaft Surface Smoothness (Ra), microns	Temp. Range, °F	Specifications Met		Each
Steel Rollers
Open
90mm	120mm	4mm	16,400	91,000	2,700	Required	0.2	0° to 240°	DIN 5405-3, ISO 303	00000000	000000

Washers

Washer

For Shaft Dia.	OD	Thick.	Washer Material	Specifications Met		Each
90mm	120mm	1mm	Steel	DIN 5405-3, ISO 303	00000000	000000

Washers for Needle-Roller Thrust Bearings

Washer

Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.

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

For Shaft Dia.	OD	Thick.	Washer Material	Specifications Met		Each
90mm	120mm	1mm	Steel	DIN 5405-3, ISO 303	00000000	000000

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About Ball and Roller Bearings

Precision Ball Bearings

Ultra-Thin Ball Bearings

Thin-Profile Crossed-Roller Bearings

High-Load Face-Mount Crossed-Roller Bearings

High-Load Crossed-Roller Bearings

Spherical-Roller Bearings

Needle-Roller Thrust Bearings

Washers for Needle-Roller Thrust Bearings