The bolted roller bearing foundation is in compression and its compressive strength is high

Concentric locking reduces fretting corrosion compared to traditional bolted roller bearing locking The choice of bearing housings can be 1 or 2-piece, held together by two or four cap bolts. Most bases offer two or four mounting bolts. Most blocks are grade 30 grey cast iron. For increased strength and ductility, ductile iron or cast steel can usually be used. When choosing the properties of a pillowcase, you should know its size and direction of radial loads and the thrust loads that the element must withstand. If the load of the pillow block is purely radial and directed towards the fully supported base, the load is limited only by the bearing capacity. The foundation is in compression and its compressive strength is high. If the load is purely radial, but its direction is not 0 degrees, then the housing strength and clamping force of the base mounting bolts - cover assembly bolts for split housings - must be taken into account when choosing a housing style. The internal design of the cam cage is very similar to that of needle or bolt roller bearings. They feature thick walls on the outside to withstand shock loads, reducing deformation and bending stress. The outer walking surface is called the standard. However, cam followers with cylindrical (flat) working surfaces can be used for some applications. Instead of an inner race, the cam follower has a threaded bolted roller bearing, so with the help of a hex nut, the cam attaches quickly and easily to precision machined parts. External axial guides are provided by integral flanges on the studs and flange rings or complementary rollers pressed on the studs. Cam retainers are used grease and ready to install units for all types of cam drives, tracks and conveyor systems. All three cam designs have the same main dimensions. Their internal differences make them suitable for a variety of working conditions. Contrary to ball and roller bearings, where the bearing dimension refers to the bore diameter d of the cam follower dimension and refers to the dimension other than the diameter D.

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