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Spherical Roller Bearing

The spherical roller bearing has double-row rollers, a common spherical raceway on the outer ring, and two raceways on the inner ring that are tilted at an angle relative to the bearing axis. This ingenious structure enables it to have self-aligning performance, so it is not easily affected by the angle error between the shaft and the bearing box seat or the shaft bending, and is suitable for occasions where the angle error is caused by installation error or shaft deflection. In addition to being able to withstand radial loads, the bearing can also withstand bidirectional axial loads.

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Model number	Basic size			Basic load rating		Rated speed
				Dynamic state	Static	Reference speed	Limiting speed
	d [mm]	D [mm]	B [mm]	C [kN]	C₀ [kN]	[r/min]	[r/min]
21315CA CC CCK MBW33	75	160	37
21314CA CC CCK MBW33	70	150	35
21313CA CC CCK MBW33	65	140	33
21312CA CC CCK MBW33	60	130	31
21311CA CC CCK MBW33	55	120	29
213010CA CC CCK MBW33	50	110	27
21309CA CC CCK MBW33	45	100	25
21308CA CC CCK MBW33	40	90	23
21307CA CC CCK MBW33	35	80	21
21306CA CC CCK MBW33	30	72	19
21305CA CC CCK MBW33	25	62	17
21304CA CC CCK MBW33	20	52	15

Model number	Basic size			Basic load rating		Rated speed
				Dynamic state	Static	Reference speed	Limiting speed
	d [in]	D [in]	B [in]	C [Ibf]	C₀ [Ibf]	[r/min]	[r/min]
21315CA CC CCK MBW33
21314CA CC CCK MBW33
21313CA CC CCK MBW33
21312CA CC CCK MBW33
21311CA CC CCK MBW33
213010CA CC CCK MBW33
21309CA CC CCK MBW33
21308CA CC CCK MBW33
21307CA CC CCK MBW33
21306CA CC CCK MBW33
21305CA CC CCK MBW33
21304CA CC CCK MBW33

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Spherical Roller Bearings Features

1.Automatic self-aligning performance‌: The outer ring raceway of the spherical roller bearing is spherical, with good self-aligning performance, which can compensate for coaxiality errors and achieve automatic self-alignment.

‌2.Load bearing capacity‌: This type of bearing can withstand large radial and axial loads, and is particularly suitable for working under heavy loads or vibration loads, and has good impact resistance.

‌3.Structural features‌: The rollers and raceways of spherical roller bearings have a high degree of fit, severe relative sliding, and large friction, so the allowable operating speed is low.

‌Application scenarios‌

Spherical roller bearings are widely used in mechanical equipment with heavy loads and vibration conditions such as papermaking machinery, reduction gears, railway vehicle shafts, and rolling mill gearbox seats.