85 mm ID Bearings | McMaster-Carr

Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				85	120	18	1	7,150	6,300	-50	130	Standard	6917	6656K161	0000000


				Shielded







								Steel

								85	130	22	1	11,900	6,100	-20	230	Standard	6017-2Z	5972K305	000000


								85	130	22	3	11,650	5,300	-20	230	Standard	6017-2Z	4481N27	000000
								85	150	28	3	19,550	4,500	-20	230	Standard	6217-2Z	4481N44	000000
								85	180	41	3	31,450	4,000	-20	230	Standard	6317-2Z	4481N57	000000


								Sealed







												Steel

												85	130	22	1	11,900	2,700	-20	230	Standard	6017-2RS	5972K252	000000


												85	130	22	3	11,650	3,200	-30	210	Standard	6017-2RS	4481N74	000000
												85	150	28	3	19,550	2,800	-30	210	Standard	6217-2RS	4481N87	000000
												85	180	41	3	31,450	2,400	-30	210	Standard	6317-2RS	4481N97	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.

						Combined Load Cap., lbf
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade No.	Ring Material	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Max. Temp., ° F		Each
Open Bearing



		85	150	36	22217	Steel	69,500	73,000	3,400	Required	390	2721T14	0000000

Permanently Lubricated Ball Bearings

Install and forget these self-lubricating bearings. Their lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Sealed







				Steel

				85	130	22	1	8,500	2,700	10	200	Standard	6017-2RS	2349K758	0000000

Needle-Roller Thrust Bearings


Bearings	Washers

Small but mighty, our thinnest rolling thrust bearings slot into tight spaces and spin at whirring speeds. Their long, slender rollers support thrust loads and reduce friction in everything from machine tool spindles to gearboxes.

A cage holds the rollers in place. You can install these bearings without washers between hardened, ground surfaces for the thinnest profile. If you’re working with unhardened, unground surfaces, you’ll need two washers for the rollers to run on. This three-piece design is easy to lubricate, but the oil will attract dust and grime since it’s exposed.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

	Thrust Bearings										Thin Washers			Thick Washers
	For Shaft Dia., mm	OD, mm	Thk., mm	Cage Material	Dynamic Thrust Load Cap., lb.	Max. Rotation Speed, rpm	Temp. Range, ° F	Specs. Met		Each	Thk., mm		Each	Thk., mm		Each
Steel



		85	110	4	Steel	13,000	2,950	0 to 240	DIN 5405-3, ISO 303	5909K958	000000	1	5909K996	000000	5.75	5909K116	000000

Washers for Needle-Roller Thrust Bearings

These hardened steel washers protect softer shafts and housings from the rolling contact of needle rollers. Without them, needle rollers can indent and score unhardened surfaces, leading to premature wear and bearing failure. Positioned between the bearing and each mating surface, these washers distribute thrust loads evenly and extend service life. They adapt needle-roller thrust bearings for unhardened, unground surfaces.

For Shaft Dia., mm	OD, mm	Thk., mm	Washer Material	Specs. Met		Each
85	110	1	Steel	DIN 5405-3, ISO 303	5909K996	000000
85	110	5.75	Steel	DIN 5405-3, ISO 303	5909K116	00000