Tapered roller bearings are used to carry combined axial and radial loads, in which combined axial and radial loads, in which the radial load is predominant. These bearings are of separable design, i.e. the rollers retained by the cage constituting an assembly with the inner ring can be separated from the outer ring. The outer rings are made interchangeable. The axial clearance can be slightly adjusted during mounting and operation. Single row tapered roller bearings restrict the relative axial displacement of shaft or housing in one direction. Any misalignment between shaft and housing should be avoided during mounting. Since an induced axial load will appear by applying a radial load, so when two tapered roller bearings being used on a spindle, they should be mounted "face-to-face" or "back-to-back", so as to cancel the axial loads thereof induced. Double row tapered roller bearings are recommended for heavy loads.

Thrust ball bearings are separable, in which the shaft washer fits tightly on the shaft, while the housing washer leaves the shaft with certain clearance. They are designed for axial loading only and not for radial loading. Single direction thrust bearings can carry axial loads from one direction only, while double direction thrust bearings are suitable to carry loads in both directions, and they are not competent to confine the radial movement of the shaft or housing. The limiting speed for this type of bearing is rather low, so they are not applicable to high speed operations.

In Cylindrical roller bearings the rollers and flanged ring, either inner or outer, are held together by the cage to form an assembly, which can be removed from the other ring. However, we are producing both interchangeable and matched types which will have different radical internal clearances. The separable feature of the bearing enables the inner ring ang the outer ring to be mounted separately, and is particularly advantageous when both rings demand interferance fits, because of loading conditions. This type of bearing is designed to carry radial loads only. In comparison with deep groove ball bearings of the same dimensions, cylindrical roller bearings possess greater radial load carrying capacity, and are more suitable for heavy load, high speed applications.

Angular contact ball bearings are particularly suitable to carry conbined load, radial load as wellas thrust load in one direction. Three kinds of contact abgle: 15° , 25°, 40° are available. The greater the contact angle, the higher the axial load carring capacity of the bearing will be; and bearings with smaller contact-angles are recommended for high speed applications. They can be arranged in duplex (pairs), namely, "face-to-face" or "back-to-back", and "in tandem". Bearings in duplex arrangement are extremely useful for high speed applications where the load to be carried is too great for a single bearing, or the axial loads to be carried are in both directions and the axial clearance is to be controlled. The duplex bearings can be preloaded as required to increase the stiffness of the spindle on which these bearings are mounted.