SKF QJ314 N2MA/C2L Vierpunktlager (70x150x35)

As a four-point contact ball bearing, this bearing carries axial loads in both directions and moderate radial loads. For this SKF bearing, 70x150x35 mm and a weight of 3.16 kg apply; the specification table holds the further technical particulars. This variant features reduced radial clearance (C2). This variant is intended for axially located shafts where low longitudinal play matters more than a large axial capacity margin.

The four-point contact ball bearing supports longitudinal forces in both directions through a single ball row in gothic-arch raceways; the split inner ring allows the high ball count and the separate mounting of the rings. In this design the clearance directly determines the contact angle: an initial play in the lower half of C2 yields a small contact angle, low axial play and therefore close longitudinal location — at the cost of the axial capacity margin a wider clearance would provide.

The close configuration presupposes careful matching of the fits and the temperature profile so that the operating clearance does not fall as far as an unintended preloading of the rolling contact. As in every version of this design, the radial load belongs at an adjacent bearing position. The open form leaves sealing and lubrication to the surrounding construction; for the design, the required axial play, the fits and the temperature difference between the rings should be assessed together.