NSK 539/690K Spherical Roller Bearing

The spherical roller bearing has a high load rating and self-aligning ability, therefore it is suitable for applications at low/medium speed which involve heavy load and impact. Spherical roller bearing has two rows of rollers, which mainly bear radial load, but also can bear axial load in any direction. High radial load capacity, especially suitable for heavy loads or vibration loads, but can not withstand pure axial load. The raceway of the outer ring of this kind of bearing is spherical, so it has good aligning performance and can compensate the coaxiality error.

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Spherical Roller Bearings

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Product Description

The spherical roller bearing has a high load rating and self-aligning ability, therefore it is suitable for applications at low/medium speed which involve heavy load and impact.

Spherical roller bearing has two rows of rollers, which mainly bear radial load, but also can bear axial load in any direction. High radial load capacity, especially suitable for heavy loads or vibration loads, but can not withstand pure axial load. The raceway of the outer ring of this kind of bearing is spherical, so it has good aligning performance and can compensate the coaxiality error.

Mainly cage：
Stamped steel reinforced cage (suffix E, very few in China).
Stamped steel plate cage (suffix CC), glass fiber reinforced polyamide 66 cage (suffix TVPB), machined brass two-piece cage (suffix MB).
Machined brass integral cage (suffix CA), stamping steel cage for vibration occasions (suffix JPA).

Brass cage for vibrating occasions (suffix EMA). The same structure, bearing on the code may be different.

Bearing description:
The spherical roller bearing has a double row of rollers, with one common spherical raceway in the outer ring and two raceway in the inner ring and inclined at an Angle relative to the bearing axis. This ingenious structure makes it self-aligning, so it is not easy to be affected by the Angle of shaft and bearing box on the error or shaft bending, suitable for installation error or shaft deflection caused by Angle error. The bearing can bear radial load as well as bidirectional axial load.

The inner hole of the self-aligning roller bearing has two kinds: cylindrical and conical, and the taper of the conical cone hole is 1:30 and 1:12. This kind of conical inner hole bearing is equipped with a tight sleeve or a disconnecting sleeve, so that the self-aligning ball bearing with the conical inner hole can be conveniently and quickly assembled on the optical shaft or the stepped machine shaft.

Factory Appearance

The factory mainly produce Tapered roller bearing, Deep groove ball bearing, Wheel hub bearing, Clutch release bearing, Pillow block bearing, etc. After ten years in the global market, Yajun Bearings get a high reputation among following Countries and regions: Russia, Algeria, Egypt, Italy, Korea, Mexico, Brazil, South Africa, Turkey, Iran, Pakistan, Singapore, Philipphines, USA and so on.

Welcome all of customers visit our factory and cooperate for mutual benefit.

Spherical Roller Bearings