The overall eccentric bearing, also known as the eccentric bearing, is a very useful type of bearing. It mainly includes outer ring, inner ring, rolling body flower basket and rolling body. The overall eccentric bearing has simple structure and convenient use. It can realize eccentric function without eccentric shaft, which greatly simplifies the eccentric mechanism and saves the machining of eccentric mechanism. It saves time and assembly, and reduces the manufacturing cost of the eccentric mechanism. Eccentric bearings are a very useful type of bearing.
Eccentric bearing concept
The eccentric bearing is a very important bearing in the cycloid reducer. The original eccentric bearing consists of three parts: an eccentric sleeve and two 502 series cylindrical rollers. The eccentric sleeve and the inner ring of the bearing are integrated to form an eccentric bearing.
feature
The inner hole of the inner ring is an eccentric hole, and a longitudinal key groove is formed on the inner side wall of the eccentric hole.
classification
The utility model relates to a double-layer double-row tapered roller eccentric bearing; a cylindrical roller is a single-layer raceway small clearance or a negative clearance cylindrical roller bearing, which is mainly installed on both sides of a printing plate cylinder and an impression cylinder;
The other is a double-circle raceway with an inner and outer eccentric negative clearance cylindrical roller bearing unit mounted on both sides of the printing machine's rubber roller. Due to its special structure, hollow cylindrical roller bearings have strong vibration absorption, long life and overload protection compared with conventional rolling bearings.
Application range
Reducer, petrochemical, textile, metallurgy, mining, steel mills, etc. Light and heavy machinery.
Imported brand
Japan NTN overall eccentric bearing, Japan KOYO overall eccentric bearing.
Precautions
(1) Keep the overall eccentric bearing and its surroundings clean. Even if the smiling dust that is invisible to the naked eye enters the overall eccentric bearing, it will increase the wear, vibration and noise of the overall eccentric bearing.
(2) Careful and careful when using the installation, strong punching is not allowed, and the overall eccentric bearing is not allowed to be directly hit by the hammer, and the pressure is not allowed to pass through the rolling elements.
(3) Use appropriate and accurate installation tools, use special tools as much as possible, and try to avoid using cloth and short fibers.
(4) To prevent the rust of the whole eccentric bearing, when taking the whole eccentric bearing directly by hand, fully wash the sweat on the hand and apply it with high-quality mineral oil before handling. In the rainy season and summer, pay special attention to rust prevention.