FAG four point contact ball bearing
Four-point contact ball bearings are single-row angular contact ball bearings that can withstand high loads in both directions in the axial direction and can only withstand low loads in the radial direction. In order to ensure low friction, especially at high speeds, it is required to ensure a minimum axial load. The fag four-point contact ball bearing is a double-half inner ring so that as many steel balls as possible can be loaded. The outer ring assembly with the steel ball and the half inner ring can be installed independently, and the bearing self-aligning ability is small. The basic type of fag four-point contact ball bearing is due to the large number of steel balls, the height of the shoulder and the contact angle of 35°.
The four-point contact ball bearing has a high axial load carrying capacity. When the four-point contact ball bearing is used as a thrust bearing, a large matching clearance is left between the bearing seat and the outer ring of the bearing to ensure that it does not bear radial force. The large four-point contact ball bearing outer ring has two positioning grooves for fixing the outer ring (bearing code suffix N2).
The four-point contact ball bearing axial clearance basic type of fag four-point contact ball bearing uses a standard group clearance. Larger clearance groups (code suffix C3) can also be used when needed. FAG Four-Point Contact Ball Bearing Cage Most FAG four-point contact ball bearings feature a machined brass solid cage (code suffix MPA) that is guided by the outer ring. The four-point contact ball bearing code holder of the glass fiber reinforced polyamide 66 is suffixed as TVP. The glass fiber reinforced polyamide cage can be used at a stable temperature of 120 °C. If the bearing is lubricated with oil, if the temperature exceeds 100 ° C, any additives in the lubricant will reduce the life of the cage. Therefore, the oil change cycle must be strictly controlled. The FAG four-point contact ball bearing allows the fag four-point contact ball bearing to operate at high speeds only when the rotational speed is only affected by the axial load.
The four-point contact ball bearing heat treatment heat treatment FAG four-point contact ball bearing operating temperature can reach 150 degrees Celsius, the outer ring diameter greater than 240mm bearing working temperature up to 200 ° C can also maintain the external dimensions. However, it should be noted that the operating temperature of the bearing is limited when the cage material is polyamide.
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