How to avoid stable noise

Source: China Bearing Network Time: 2014-01-13

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1. In order to make the cage revolutionary movement stable; the ferrule guiding method should be selected as much as possible and the guiding surface should be given ample smoothness; the tapered roller bearing layout under high-speed working conditions should be improved; the roller-guided L-shaped cage should be changed. Z-shaped cage for ferrule ribs.
2, active selection of leading cleaning skills; useful complete removal of spare parts and products after the joint; improve the cleanliness of the bearing.
3. When the bearing rotates at high speed; the bearing amplitude of the bearing with large pocket gap is much larger than the oscillation amplitude of the cage with small pocket clearance; therefore, the value of the pocket void is especially important.
4, try to improve the accuracy of the cage production; improve the surface quality of the cage; help to reduce the noise of the roll and cage collision or conflict.
5, we must pay attention to minimize radial clearance.

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IPE Hardwood Flooring

Brazilian walnut, also known as Ipe, is a tropical hardwood grown primarily in Brazil but is also harvested in Bolivia, Venezuela, Guatemala, and Peru. Typically found in rainforests, the trees can grow to heights of 120 feet to 160 feet. The diameter of the tree ranges between three and six feet. Ipe is a popular choice for hardwood flooring because of its extreme durability and unique grain.

Botanical Name: Tabebuia serratifolia

Color: ranges in color from a light tan with greenish tinges to a brownish black.

Grain: The grain on the Brazilian walnut can be either fine and straight or very irregular.

Variations within Species and Grades: There is a large variation in color found in the Brazilian walnut,
however most pieces used for flooring tend to be of the darker variety.

Hardness/Janka: The Janka scale rating for Brazilian black walnut is 3,680.

Dimensional Stability: Brazilian black walnut has an average stability rating of 8.0.

Sawing/Machining: This lumber is very difficult to saw, especially if using hand tools.

Sanding: Sanding is very difficult and care must be given to minimize scratches and sanding marks.

Nailing: Because of the hardness of the lumber, Brazilian walnut can be very difficult to nail.

Finishing: Care should be given when finishing Brazilian walnut flooring.

Availability: Brazilian walnut is moderately available with some regional limitations

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