What is the Effect of Radial Clearance on Bearing Performance?

Not all bearings require the minimum working clearance, according to the conditions of the selection of suitable clearance. Rolling bearing five groups of radial clearance, 0 group for the basic clearance. The basic radial clearance group is suitable for general running conditions, conventional temperature and common interference with; in high temperature, high speed low noise, low friction and other special conditions of the work of the bearing is appropriate to choose a large radial clearance; on precision spindle, machine tool spindle with bearings, etc. should choose a smaller radial clearance; for roller bearings can keep a small amount of clearance. Bearing installed after the work clearance, to install than the original clearance before the small, this is because the bearing to withstand a certain load rotation, and bearing with and load generated by the amount of elastic deformation.

Rolling bearing clearance is one of the key indicators involving many characteristics of the bearing. Radial clearance on bearing life, vibration, noise, temperature rise and other bearing performance has a great impact. Theoretically speaking, bearing in the work, work clearance for small negative value bearing life is the longest, clearance than the best value and then a little smaller, life will drop sharply, at the same time friction and heat increase. If the radial clearance is too large, bearing rotation will produce a large vibration, noise, but also make the bearing internal load distribution deterioration, early damage.

Suitable clearance can make the role of the bearing load reasonably distributed between the rolling body, can reduce the bearing in the operation of vibration and noise, can limit the shaft and shell in the radial and axial direction of the movement, etc.. So the clearance on the bearing work performance and installation performance will have an impact.

Contact us for more details:

E-mail: emily@gainhui.com

Tel: +86-029-88692376

Mob/WhatsApp: +86-18710850036