The table below lists some of the bearings over 24"/600mm bore size manufactured by Cooper recently.
This table may be used as a guide for selecting or designing-in large bore bearings, but it should be borne in mind that these larger sizes of bearing are frequently adapted to meet application requirements. They may be modified to match existing or required envelopes and capacities. Many of the bearings may be supplied with slightly different bore sizes to those under which they are listed, while alternative versions may already be available at some bore sizes without modification.
Generally, these bearings are available in expansion ‘EX’ or fixed ‘GR’ types. Extra-expansion ‘EXILOG’ types are also made regularly, but often have different envelope dimensions (in particular, the inner race is usually wider).
Lighter duty 04 Series bearings are shown separately.
It is always advisable to contact Cooper when specifying large bearings.
If the bearing is to be mounted in a housing made by the equipment manufacturer, Cooper will supply details of the required mounting tolerances upon request.
If the bearing is to be fitted into an existing housing, accurate details of the mounting dimensions should be supplied to Cooper to ensure compatibility.
Cooper can supply suitable housings, including cartridges, pedestals, flanges, and custom housings for large bearings. Please contact Cooper with application details, so that we can supply details of the most suitable housing, or design or adapt a housing to suit if required.
Large bearings are often paired to form a ‘double bearing’ of increased capacity.
To calculate the dynamic capacity of a double bearing, multiply the dynamic capacity (Cr) of the single bearing by 1.714.
To calculate the static capacity of the double bearing, multiply the static capacity (Cor) of the single bearing by 2.
Mountings for double bearings should be designed to equalise the loading on the two rows of rollers.
Bearings should only be mounted together to form a two-row bearing if they are supplied by Cooper specifically for this purpose, and the bearings should be maintained in their allocated pairings.