Spherical Roller Bearings FAG 23948 -MB

The designation -MB indicates a version with a brass cage, which ensures stable guidance of the rolling elements within the bearing. Brass provides mechanical stability under vibration and reduces friction in the event of temporary lubrication failures during operation.

The bearing has a circumferential lubrication groove with lubrication holes in the outer ring. Grease or lubricating oil enters directly into the bearing, between the rolling elements, via these openings. As this is an open bearing without sealing washers, protection against dirt and moisture is provided by the surrounding housing.

The bearing is designed for an operating temperature range of -30 to +200 degrees. The standard 100Cr6 rolling bearing steel used, as well as the brass cage, retain their dimensional stability within this temperature range. When selecting the lubricant, care must be taken to ensure that its specification corresponds to the intended operating temperatures of the bearing location.

This model features standard radial bearing clearance and a tolerance class of P0/PN or ABEC 1. The standard bearing clearance is suitable for standard operating conditions without significant temperature differences between the inner and outer rings. Tolerance class P0 defines standardised dimensional and runout tolerances for common industrial fits.

Spherical roller bearings have a common hollow-spherical raceway in the outer ring, within which the rollers move with adjustable angular misalignment. This allows the bearing to compensate for static misalignment or dynamic shaft deflection. This prevents the rollers from running on their edges, which reduces mechanical stress and promotes smooth running.