HVAC stands for (Heating, Ventilation, and Air Conditioning), HVAC System, or simply HVAC system can all be referred to as an air conditioning system. It’s a crucial system in buildings and constructions, designed to control and regulate temperature, humidity, and air circulation. The purpose of HVAC is to create a comfortable, pleasant, and safe environment for users.
In HVAC system, the fan system (whether it’s extracting hot air or circulating it) operates under elevated temperatures, so heat-resistant bearings are critical for reliability and safety. Here’s a clear breakdown of what’s typically used and how to choose them:
Common bearings have the following characteristics
- High-Temperature Grease-Lubricated Bearings
- Standard rolling bearings (ball or roller) with special high-temp grease
- Typical limit: 80°C – 120°C (With bearing clearance C3)
- Grease Lithium complex (lower range)
- Used in: Moderate-temperature drying ovens
- Limitation: Grease degrades over time needs relubrication
Various cooling solutions are available, such as circulating water massage cooling and shaft-mounted fan cooling, designed for long-term operation. However, these solutions have drawbacks: they are very time-consuming and costly to maintain, requiring frequent oil and grease replenishment, and replacement costs. They are also susceptible to wear and tear from malfunctions during operation.
- High-speed fiction resistan
- Easy installation and operation
- Withstands harsh working environments: 250°C ~ 300°C.
- Hardness and durability ensure suitability for various temperature ranges with PTFE-based grease lubrication.
- Products are applied according to drawings or customer requirements to match the equipment.
