1. Intuitive Features:
The loose porous material gives it a soft yet durable texture. The growth rings may be faint but are noticeable upon closer inspection. The newly exposed heartwood typically displays a rich purple-red or dark reddish-brown hue, often accompanied by deep brown or chestnut streaks. The pores are barely discernible to the naked eye and tend to contain black gum residues. The pore diameter ranges from 244 μm at its largest to an average of 104 μm. Pore density varies between 2 to 13 per mm², with a tendency towards fewer numbers. The axial parenchyma is quite prominent, forming distinct concentric layers that are mostly thin-lined (1 to 4 cells wide). These layers sometimes appear reticulate or ladder-like where they intersect with rays, and they are sparsely winged. The wood fibers have extremely thick walls. Under a magnifying glass, the wood rays become visible; these ray markings resemble waves. The ray tissue consists of both single-columnar structures (which may be more or less numerous) and multi-columnar structures (usually in pairs of two or occasionally three columns). The wood carries an acidic or faintly spicy aroma. Its structure is fine and compact, and the grain is usually straight. The air-dry density measures between 1.01 to 1.09 g/cm³.
2. Microscopic Features:
When the wood is freshly cut, it emits a distinct spice-like scent with a hint of sourness. The color tends to be reddish or deep red initially but darkens to a deeper shade of red when exposed to air. The wood itself is firm and dense, with a fine grain structure, high oil content, and the ability to sink in water. The pores are tiny, small, and densely packed. The grain pattern is simple yet elegant, featuring dark brown or black straight streaks that resemble silk threads. The tree trunk exhibits solitary vessel pores, with a few smaller pores located within the larger ones (2-5 in number), and occasional clusters of pores. The wood fibers possess very thick walls. On the transverse section, the vessels appear elliptical. The axial parenchyma is abundant, with widths ranging from 1 to 4 cells. The wood rays overlap, and the ray tissue forms both single-columnar shapes and multi-columnar structures, which are typically 1-14 cells tall. Single-ray structures are more common, while multi-ray structures span 2-3 columns wide.
Inser bearings & Units/Mounting Bearing Units:
Inser bearings have many series, there are UC, SA, SB, HC, SER, UK, UEL, UD SC series, the bearing Housings have P, PK, AK, PH, F, FS, FL, FT, FC, FA, T PP, PF, PFT, PFL series.the Clearance should be C3 grade. Borine' Inser bearings are made with quality Chrome steel and the Housings are made with Casting, are basis on good quality and competitive prices.
We are manufacturer of Insert Bearing in China, if you want to buy Bearing Mounting, Pillow Block, please contact us.
Insert Bearing,Bearing Mounting,Pillow Block,Mounting Bearing Units
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