Belleville Washer Torque Table

The belleville washer can then be added seamlessly and no modification to this torque value is needed.

Belleville washer torque table.

Clamp load lb is calculated by arbitrarily assuming. And p bolt clamp load developed by tightening. So that the bolt and belleville washers work together make sure the torque for your belleville washers matches that of your bolts. Torque calculation the widely accepted formula is as follows t k f d where k estimated nut friction factor t bolt torque d nominal bolt diameter.

Performance considerations a similar device is a wave washer. In lb ft lb n m in lb ft lb n m 1 2 540 45 61 660 55 75. D nominal bolt diameter. μ th thread friction coefficient μ h under head friction coefficient 1 n 0 225 lb 1 nm 0 738 ft lb.

Lee spring also expand on size options past din 2093 s standard size tables made to din manufacturing and quality specifications to provide component flexibility for product designers. 1 spring is considered to be 1 in parallel 1 in series. The lee spring din belleville disc washer series offers metric disc spring washers to meet global demand for sizes specified by din 2093. Belleville washers are a more economical and less precise form of conical disc spring best used for static applications where some setting and or loss of force can be tolerated.

The values assume the following in addition to the information listed in the chart. Cu c paste copper graphite paste molykote 1000 oil wd40 has been used. Silicon bronze hardware is not lubricated. Belleville washer stacking example.

G f ratio of yield point. Again belleville washers are no exception. Clamp load is also known as preload or initial load in tension on bolt. Calculation example multiple belleville washers may be stacked to modify the spring constant or amount of.

Tightening torque values are calculated from the formula t kdp where t tightening torque. This is the same with belleville washers. Thread friction coefficients have theoretical values. If you exceed a locking washer s torque by more than a few percent during assembly you destroy the locking washer.

This notation is needed for load calculations if n of springs in a stack then. All stainless steel hardware stainless steel hardware with bronze nut dia. Belleville washers manufactured from steel strip are not scragged pre stressed during the manufacturing process and the inside and outside diameters of the disc. 5500 lbf belleville washer as supplied by sefcor.