An essential part of a forklift is the channeled lift structure, which is called the mast. Rolling bearings are a basic part of the mast as they guide and retain the forks in the vertical channels. Also these bearings are called mast guide bearings. Chain guide bearings, which facilitate the lifting and lowering of the mast are also an important part of the entire upright system.
Mast and Chain guide bearings are specially designed to withstand the heavy load required in application that forklift truck handle load ranging from light, bulky material to heavy load. These bearings have heavy section outer rings, which serve as rollers, or guide for carriage in the mast channel. The configuration of their outer ring is designed to fit the contour of the mast channel. In some cases, these bearings have outer rings of which the double hardness and cracked allowing the insert of extra balls for very heavy loads. These design characteristics contribute to prolong operating life, simplify the channeled lift structure, reduce maintenance, improve operating stability for forklift truck.
Most of TCB mast and chain guide bearing types are based on single and double row ball bearings. They are pre-greased and good-sealed bearings and are used for all types of forklift. |