Surface Roughness: Ra 0.05; Coatings: Anti-rust Oil
Structure: Needle Roller; Torque Capacity: 30*40*20 mm
Structure amp; introduction
Solid Collar needle roller bearing
The solid collar needle roller bearing has compact structure, small radial size and large load carrying capacity. It is suitable for the parts of which the radial overall size is limited. It is also wide applied to the situation where the shaft or housing has the swinging motion. In general, the needle roller bearing only withstands the radial load, not the axial load. When the shaft has axial load, it can be used in combination with other bearings. However, it does not limit the axial shift of shaft or housing. The limiting rotational speed of needle roller bearing is lower. In high rotational speed of main machine, the needle roller bearing with cage shall be chosen as far as possible. In compassion with other types of needle roller bearings, under the situation of same radial size, the needle roller bearing has the large load carrying capacity and high rigidity but has high friction torque.
This kind of bearing has many series with different structure and size. It is requested that the hardness, processing accuracy and surface roughness of shaft journal surface and rolling surface of outer housing be same as those of the collar of bearing. As for the needle roller with G2 class, the diameter varies within 2μm in group. Except the full complement needle roller bearings, they have the rigid cages, which can correctly guide the parallel axis line of needle roller.
Characteristics amp; classification
Model RNA, NK Needle Roller Bearings Without Inner Ring
The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited. Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63μm. This kind of bearing does not limit the axial shift of shaft and housing and has
PUJUFANG-PHONE CASE Sturdy NK30/20 Needle Roller Bearing 30x40x2
MycoApply 2021 Ornamental Trials Our early summer MycoApply trials, conducted in Columbus Ohio, and displayed in-person at the Cultvate'21 Trade Show, demonstrate the dramatic effects that mycorrhizae can have on...
In July 2019 Ken Fisher, AmericanHort’s President and Chief Executive Officer, stated in his Keynote address that having an adequate labor supply was one of the horticultural industry’s greatest threats….
What is a Biostimulant? Biostimulants are a broad and emerging topic, with a lot of attention and new products hitting the markets in recent years. The current value of the…
At Mycorrhizal Applications, we harness the power and wisdom of natural systems to promote living soils and increase quality, productivity, and health in all industries involving soils, plants, and people.
What is Mycorrhizal Applications?
As the world’s leading manufacturer and supplier of mycorrhizal inoculant products and ingredients, Mycorrhizal Applications (MA) researches, produces, and markets mycorrhizal fungi which accelerate plant vigor by greatly increasing the surface absorbing area of roots, producing a healthier root system. These specialized fungi colonize plant roots to create a symbiotic root-and-mycelial network within the surrounding soils, increasing efficiency in nutrient and water absorption to optimize plant performance. MA’s MycoApply® line of mycorrhizal inoculants is utilized by landscapers, farmers, forest nurseries, restoration & erosion control specialists, greenhouses, nurseries, soil media manufacturers, and professional horticulturalists to maximize plant success and improve return on investment.
What Are Mycorrhizae?
“Myco” – “rhiza” literally means “fungus” – “root” and describes the mutually beneficial relationship between the plant and root fungus (mycorrhizae is the plural form of mycorrhiza). These specialized fungi colonize plant roots and extend far into the soil. Mycorrhizal fungal filaments in the soil are truly extensions of root systems and are more effective in nutrient and water absorption than the roots themselves. Approximately 95 percent of plant species on the planet form a symbiotic relationship with the beneficial mycorrhizal fungi.
Are They Important?
Mycorrhizal fungi increase the surface absorbing area of roots, thereby greatly improving the ability of the plant to access soil resources. Mycorrhizae are an essential part of a healthy soil microbiome, and several miles of fungal filaments can be present in less than a thimbleful of soil. Mycorrhizal fungi increase nutrient uptake not only by increasing the surface absorbing area of the roots, but also release powerful organic compounds into the soil that help to solubilize hard-to-capture nutrients, such as organic nitrogen, phosphorus, iron and other “tightly bound” soil nutrients. This extraction process is particularly important in plant nutrition and explains why non-mycorrhizal plants require high levels of fertilization to maintain their health. Mycorrhizal fungi form an intricate web that captures and assimilates nutrients, conserving the nutrient capital in soils.
Do You Need Them?
Undisturbed soils are full of beneficial soil organisms including mycorrhizal fungi. Research indicates, however, many common practices can degrade the mycorrhizae-forming potential of soil. Tillage, removal of topsoil, erosion, site preparation, compaction, fumigation, invasion of weeds, and leaving soils fallow are some of the activities that can reduce or eliminate these beneficial soil fungi. Scientific studies indicate mycorrhizal populations are slow to recolonize naturally, therefore, reintroducing mycorrhizal fungi in areas where they have been lost or in artificial growing media can dramatically improve plant performance with less water and fertilizer and at a reduced cost.
Find resources and products for professional growers, landscapers, arbor or turf professionals, restoration specialists, and forest managers to improve plant performance.
Home, Lawn, & Garden Use
Learn More about how Mycorrhizal Fungi can Benefit your Lawn & Garden.
MycoApply® Products for Farm and Crop Use.
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