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Overview of bearing mounting methods

 Roller Turn Rollor

 

Applications

This is a useful technique when driving small bearings with cylindrical bores onto shafts or into housings.

 

ii. Drive method

The thrust method is a hydraulic technique. Some of the important tools used in this technique are

Lock nut wrench

Hook wrenches

Hydraulic nuts and pumps

The hydraulic method is much more powerful compared to the mechanical method. If used improperly, hydraulic tools may remove radial clearance from bearings.

Applications

This is the preferred technique for driving medium to large bearings with tapered bores onto tapered seats. The method uses hydraulic tools.

 

III. Oil Injection Method

This oil forms a film between the two surfaces, thus reducing friction and making mounting easier. Note, however, that for this procedure, both the pipe and the recess should already be in place as part of the shaft design. If not, the grooves, feed channels and threaded connections must be machined into the shaft or sleeve before performing the oil filling.

Applications

This method also uses hydraulic tools to facilitate the mounting of medium and large size bearings with a tapered bore by a film of oil injected between the inner ring bore and its seat.

2. Thermal mounting

Hot mounting uses heat to expand the bearing, reducing the interference fit and allowing the bearing to slide easily onto its mating parts.

Let us look at the different methods of using heat to mount bearings.

Ise. Induction heater

Induction heaters are the most effective way to heat bearings for thermal mounting. The induction method requires the preparation of several tools.

Induction heater (of course!)

Heat-resistant gloves

Yoke

 

How does it work?

1. An electric current flows in the heater's coils, creating a magnetic field in the core.

2. This creates eddy currents in the bearings.

3. The bearing heats up due to the resistance of the bearing material to the eddy currents.

4. To eliminate the typical interference fit, the temperature difference between the bearing and the ambient temperature is approximately 90°C.

ii. Electric heating plates and heating cabinets

These devices are fairly easy to use. Before using the equipment to heat the bearing, set the preset temperature accordingly.

While ovens and hot plates can be used for batch heating of small bearings, they are usually inefficient and time consuming for heating larger bearings.

 

Overview of bearing mounting methods

The precise tools and procedures required to mount bearings vary by type, size, speed, application, and industry. Our team of experienced engineers are on hand to provide expert consultation and advice to help you install them properly to extend the efficient operation of your equipment.

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