Roller Bearings

The outer ring of the roller bearing adopts a full complement cylindrical roller bearing with a thick outer ring wall. The outer diameter surface of the roller has a cylindrical shape and an arc shape, which can be designed to match the raceway surface according to the application. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads.

Combined roller bearing consists of main roller, side roller, shaft head and cover plate.

Structure

The bearing is a sealed structure, filled with grease to provide long-term effective lubrication, and users can avoid lubrication. For harsh operating conditions, a channel for supplementing grease can be designed to improve bearing service life. Improper method can also cause the roller bearing to heat up. Lubrication can reduce the wear of parts in motion, ensure the accuracy of the press, and reduce energy consumption. Lubrication is divided into thin oil lubrication, thick oil lubrication, etc.

Composition of combined roller bearings

1) Main roller

The main roller is the most important bearing body in a set of composite rollers. It mainly bears the vertical load and impact load, and has strong impact resistance, wear resistance and corrosion resistance. Since the main roller is a full complement roller bearing, it can also be used alone as a one-way bearing.

2) Side rollers

The side roller is the second bearing body in a set of composite rollers, which mainly bears the horizontal load, and also has strong impact resistance, wear resistance and corrosion resistance. The side rollers are designed with full needle rollers without inner ring, and a mandrel replaces the inner ring and the shaft head to connect and carry.

3) Shaft head

The shaft head is used as the connection part between the composite roller and the machine equipment. Usually, the shaft head head is designed to be chamfered, which is convenient for installation. The shaft head can be directly welded to the equipment, or the shaft head can be welded to the connection with a round hole. Then assemble the connection board and equipment on the board.

4) Cover plate

The function of the cover plate is to fix the side roller installed inside the shaft head and the main roller outside the shaft head with nuts and thread glue at the end of the shaft head.

Install

1) Wash the bearing with kerosene, press it into the bearing seat, fill the rollers of the outer ring of the bearing with Shell No. 3 lithium base grease to two-thirds full, spread it evenly with clean hands, install the ntn bearing gland, and use The tightening bolts of the bolt anti-loosening glue compress the bearing gland;

2) The bearing is a cylindrical roller bearing with a separable inner and outer jacket, and the inner sleeve of the bearing should be fitted on the rotating shaft and in place;

3) Install the bearing seat on the casing. If there is a grease injection hole, it must be aligned. Tighten the bearing seat with the fastening bolts coated with bolt anti-loosening glue;

4) The inner and outer eccentric blocks are installed on the rotating shaft and in place. If there is a shaft key, the shaft key should be installed in the keyway, then the outer eccentric block should be installed, and the shaft retaining ring should be installed on the rotating shaft;

5) Tighten the fastening bolts of the fixed eccentric block, turn the adjustable eccentric block to the angular position before removal, and tighten the fastening bolts. After the above assembly is completed, the rotating shaft should have a certain axial movement;

6) Secure the protective covers at both ends of the upper vibration motor with screws.

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