Descriptions
Axial preloading of bearing with Ball Bearing Disc Spring extends the bearing life and eliminates excessive running noise. One or more Disc Springs can be used. In most cases the outer race of the ball bearing is preloaded with the Disc Spring. In some cases it is desirable to preload the inner race. The recommended preload is achieved when the disc is deflected to 75% of the free conical heights (ho). The ho/t ratio is designed so that the spring load remains nearly constant for a large deflection range. Tolerance builds up and variations resulting from expansion can be accommodated without a significant change in preload. Disc Springs may also be used to preload seals, packing, clutches and other machine elements.
Plain Disc Springs for Ball Bearing:
Plain disc springs assist in maintaining positioning accuracy of the bearing (with no end play) and also minimize vibration and shaft deflections. Correct preloading will also increase bearing rigidity and negate excessive running noise. Plain Ball Bearing disc springs with high force, low deflection and pronounced regressive spring characteristics are for backlash compensation, silencing and protection of ball bearings A note of caution however when considering columns of these disc springs. A ratio of cone height/thickness in excess of 1.50 could cause springs to invert and the column to collapse. Outside diameters OD ranging from 9.8 – 358mm (0.386″ – 14.1″)
Slotted Disc Springs for Ball Bearing:
This range of slotted disc springs have a slotted inside profile which gives a different force/deflection profile to plain disc springs. Slotted disc springs with low force and large deflection characteristic are increasingly required for use with small size ball bearings. In cases where higher spring forces are required, the Disc Springs can be stacked in parallel for corresponding factors of two or more. A note of caution however when considering columns of these disc springs. A ratio of cone height/thickness in excess of 1.50 could cause springs to invert and the column to collapse. Outside diameters OD ranging from 9.8 – 94.5mm (0.386″ – 3.72″)
Specifications
Vinsco Disc Springs for Ball Bearing outer diameter from 9.8mm up to 358mm.
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