Heavy Duty Bearing Block: How to Install Bearings Correctly

The adapter sleeve is one of the commonly used bearing accessories and is the most commonly used component for positioning bearings with tapered holes on cylindrical shafts, as this sleeve can be used for optical or stepped shafts. Perhaps many people don't know much about the adapter sleeve, so let's talk about how to install the bearing correctly? What is the difference between a set sleeve and a release sleeve?

How to install the bearings correctly?

1、 Preparation before installation

Before installation, carefully clean the mounting surfaces of the fastening sleeve and the withdrawal sleeve to ensure they are free of sharp corners and burrs. If any protruding parts are found, they should be promptly polished with professional sandpaper to avoid mutual wear between the bearing and shaft, which may affect assembly accuracy. The friction surfaces on the shaft that pass through should be coated with butter.

After finishing and reaching the standard, the inner diameter and outer diameter of the axial opening are floating dimensions due to the gravity of the material and a small amount of stress in the material. Sometimes, the floating dimension of the inner diameter is larger than the standard size, which does not affect assembly. However, when the floating dimension is smaller than the standard size, a support block should be placed at the opening for assembly to control the inner hole size to be larger than the standard size before assembly. When the fastening sleeve and the withdrawal sleeve are initially installed to the predetermined position, the support block at the opening must be removed before the locking assembly can be carried out.

Note: Select a suitable tightening sleeve based on the bearing. There are many types of tight sets sold on the market, and prices vary depending on the model and brand. If the adapter sleeve needs to be replaced, it must be selected based on the model, size, and brand of the bearing. This way, the purchased fastening sleeve is suitable, and there will be no wear and mutual adhesion problems with the fastening sleeve. For detailed parameters of the adapter sleeve, please consult Luoyang Bairunsi Bearing.

2、 Installation steps

1. Apply grease to the inner diameter, outer diameter, threads, and large end faces of the locking sleeve and the release sleeve.

2. Assemble the fastening sleeve or withdrawal sleeve and the bearing together, initially lock them with a lock nut or hydraulic nut, and inject high-pressure oil into the end face (one oil hole for the fastening sleeve and two oil holes for the withdrawal sleeve) using a hand pump.

3. Use a lock nut to adjust the bearing clearance. After the clearance is adjusted, directly lock it or use a hydraulic nut to install the bearing. To adjust the clearance, remove the hydraulic nut and lock it with the lock nut.

3、 Disassembly steps

1. When disassembling the fastening sleeve and withdrawal sleeve, apply grease to the threads on the fastening sleeve and withdrawal sleeve. Remove the nut and apply grease to the end face where the bearing contacts.

2. Inject high-pressure oil into the oil hole on the end face of the tightening sleeve or withdrawal sleeve with the hand oil pump. Under the action of high-pressure oil, forcefully rotate the disassembly nut or hydraulic nut to pressurize, so as to withdraw the tightening sleeve or withdrawal sleeve. (Removal of the fastening sleeve requires a threaded mounting nut at the shaft end as a fixing point.)