How to replace and maintain the slewing bearings of amusement equipment?

Disassemble the Bearing:

 Pressing Disassembly Method: Use a press to press the bearing. The pressure point of the press should be on the center of the shaft to ensure stable and reliable operation during work, avoiding deflection that may damage the machine and the bearing. Common presses include manual, mechanical, or hydraulic types.

Heat Treatment Disassembly Method: For bearings with tight fits, heat treatment can be performed first. Pour oil heated to about 100°C on the bearing to be disassembled to expand the bearing ring by heat, then pull out the bearing evenly with a special puller. Take protective measures during operation to prevent scalding, and wrap the shaft body before heating to avoid the shaft body expanding due to heat affecting bearing disassembly.

Installing the New Bearing:

1. Clean the Installation Site: Use cleaning agents and rags to carefully clean the installation surfaces of the shaft and bearing seat, removing oil stains, impurities, rust, etc., to ensure the installation surface is flat, clean, and free of any foreign matter, ensuring the installation accuracy and stability of the new bearing.

2. Apply Lubricant: Evenly apply an appropriate amount of grease to the inner ring, outer ring, rolling elements, and cage of the new bearing. The selection of grease should be based on the working environment, speed, load, and other factors of the amusement equipment, referring to the equipment manual or consulting professionals. Suitable grease can reduce friction and wear during bearing operation and extend the bearing's service life.

3. Install the Bearing:

◦ Install with Tools: According to the type and size of the bearing, select appropriate installation tools. For example, small bearings can be installed by gently tapping with a copper rod; larger bearings can be installed with the help of a press or puller. During installation, ensure the matching accuracy between the bearing and the shaft and bearing seat, so that the center line of the bearing coincides with the center line of the shaft, avoiding eccentricity or inclination.

◦ Pay Attention to Installation Direction: Some slewing bearings have specific installation direction requirements. For example, bearings with marks or sealing devices must be installed in the correct direction, otherwise, the normal operation and sealing performance of the bearing will be affected.

◦ Tighten Connecting Components: After installing the bearing, reinstall the previously removed related components, such as connecting shafts, gears, protective covers, etc., and tighten the connecting bolts with a wrench according to the specified torque. When tightening the bolts, use a cross-symmetrical method to ensure uniform force on each bolt, avoiding bearing deformation or unstable operation due to uneven bolt tightening.

Maintenance Methods for Slewing Bearings of Amusement Equipment

Daily Inspection: Regularly inspect the appearance of the slewing bearing to check for obvious damage, cracks, deformation, rust, etc. Check whether the sealing device is intact; if the sealing tape is damaged or falls off, replace or reset it in time to prevent dust, moisture, impurities, etc., from entering the bearing and affecting its normal operation.

 Lubrication Maintenance: When injecting grease, slowly rotate the slewing bearing to make the grease evenly fill all parts of the bearing until it seeps out from the seal. For slewing bearings with multiple lubrication points, ensure each lubrication point is fully lubricated. If a centralized automatic lubrication system is used, regularly check the working status of the system to ensure grease is delivered to each lubrication point on time and in quantity.

Regular Maintenance: 100 hours after the slewing bearing is installed and put into operation, fully check whether the pre-tightening torque of the installation bolts meets the requirements, and repeat the check every 500 hours of continuous operation. Since the amusement equipment will generate vibration and impact during operation, which may cause bolts to loosen, it is necessary to ensure that the bolts always maintain sufficient pre-tightening force to prevent the bearing from being overloaded locally due to loose bolts, thereby damaging the bearing and equipment.

LTZC Amusement Equipment Slewing Bearing Manufacturer

LTZC is a reputable manufacturer in the field of amusement equipment slewing bearing manufacturing. It has strong R&D capabilities, continuously invests resources in technological innovation and product upgrading, and can provide personalized slewing bearing solutions according to the special needs of different amusement equipment. From the design stage, it fully considers the operating characteristics, load distribution, speed requirements, and other factors of amusement equipment to ensure that the products can work stably and reliably in practical applications.

If you need amusement equipment slewing bearings, please contact LTZC. We will provide you with solutions.