Bearings for Tapered Shafts

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Round with Support Rail

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Bearing Trade Number

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Maximum Rotation Speed

Ball Bearing Profile

Inner Ring Type

Lubrication

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Material

Dynamic Radial Load Capacity

Less than 10,000 lb.

10,000 lb. to 19,999 lb.

Ball Material

Steel

Misalignment Capability

4°

REACH

Compliant

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

1C999

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21 Products

Tapered-Bore Ball Bearings

Mount these bearings on tapered shafts. Or, pair with an adapter sleeve to install them on round shafts without needing to press fit. The two rows of balls have separate raceways in the inner ring and a shared raceway in the outer ring, so the balls rock back and forth to compensate for misalignment. This construction also reduces noise and vibration.

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

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.

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







				Steel

				20	47	14	1	2,200	14,000	4°	1:12	Not Rated	240	Standard	1204K	7755N11	000000	—	———	0


				20	52	15	1	2,800	12,000	4°	1:12	Not Rated	240	Standard	1304K	7755N13	00000	—	———	0
				25	52	15	1	2,700	12,000	4°	1:12	Not Rated	240	Standard	1205K	7755N15	00000	—	———	0
				25	52	18	1	2,750	12,000	4°	1:12	Not Rated	240	Standard	2205K	7755N16	00000	20	4449N22	000000
				30	62	16	1	3,550	10,000	4°	1:12	Not Rated	240	Standard	1206K	7755N19	00000	25	4449N18	00000
				30	72	27	1	7,150	8,000	4°	1:12	Not Rated	240	Standard	2306K	7755N23	000000	25	7835T147	00000
				35	72	17	1	3,550	8,500	4°	1:12	Not Rated	240	Standard	1207K	7755N24	00000	30	4449N19	00000
				40	80	18	1	4,300	7,500	4°	1:12	Not Rated	240	Standard	1208K	7755N28	00000	35	4449N21	00000
				40	80	23	1	5,000	7,500	4°	1:12	Not Rated	240	Standard	2208K	7755N29	000000	35	4449N23	00000
				45	85	23	1	5,200	7,100	4°	1:12	Not Rated	240	Standard	2209K	7755N34	000000	40	4449N24	00000
				45	100	36	1	12,350	5,600	4°	1:12	Not Rated	240	Standard	2309K	7755N36	000000	40	7835T154	00000


				55	100	25	1	6,000	6,000	4°	1:12	Not Rated	240	Standard	2211K	7755N43	000000	50	4449N25	00000