One. Product and Technology Introduction
This series of products is a low-speed heavy-duty open ball bearing with a temperature resistance of 300 degrees. The minimum inner warp is 10 mm, the maximum outer diameter is 3.6 meters, the highest accuracy is P5, and the maximum use speed is 200 rpm, or the outer ring linear speed is not more than 100 meters / minute.
It consists of an inner ring, an outer ring, and rolling elements. It does not require a cage. It uses a full ball structure.
The common form of this type of high temperature bearing failure is excessive wear of the steel ball. The main reason for the excessive wear of the steel ball is that the curvature radius of the steel ball is smaller than the radius of curvature of the channel, which makes the contact radius of the contact area of the steel ball smaller and stress concentration. Causes early failure. This design uses a near-curvature design, which makes the curvature radius of the steel ball and the channel very close, the mutual contact area increases, and the bearing capacity increases in a near-square relationship. This is why the high-temperature bearing with a near-curvature design has a longer service life. However, this bearing design also has a limitation in use, that is, the use of the speed can not be too high, otherwise it will cause the channel to jam the steel ball, affecting the rotation flexibility, general high-temperature bearings use 200 rpm, the maximum can not exceed 400 rpm .
High temperature and low speed bearings can run normally without adding high temperature grease, but adding high temperature grease will increase the service life.
1. Full ball structure and near-curvature design, large bearing capacity, 1.5 times that of ordinary bearings.
2. Lubricated with high temperature grease, no sticky matter.
3. High temperature grease has strong resistance to high temperature evaporation and long life.
4. Able to bear large radial force and axial force.
5. High temperature resistance, anti-glue, prevent the early failure of the bearing.
6. This series of bearings are suitable for high-temperature, low-speed, heavy-duty, dusty environments and difficult to maintain grease.
three. Technical Parameters
1. Model: GA7000
2. Dimensions and tolerances: Dimensions and tolerances are the same as national standards and are interchangeable
3． Durable temperature resistance: 300 degrees
4． Peak temperature resistance: 400 degrees
5． Maximum speed: 200 rpm, or the linear speed of the outer ring is less than 100 m / min
6. Dynamic load and static load: 1.5 times that of corresponding bearings
7. Lubrication form: high temperature grease lubrication or non-lubrication
8. Structural seal: single-row full-ball maintenance-free
1. The installation part is selected to be isolated from high heat and does not directly radiate the mechanical part.
2. Each bearing on the production line is evenly stressed.
3． High-temperature bearings are selected according to relevant national technical standards, or shaft f6 and seat M7 are recommended.
4． If you have any questions during use, please contact us.